UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended June 29, 2018

Or

For the transition period from                      to                     

Commission file number: 001-34775

FABRINET

(Exact name of registrant as specified in its charter)

+66 2-524-9600

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒    No  ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ☐    No  ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§229.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (section 229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ☐    No  ☒

As of December 29, 2017, the last business day of the registrant’s most recently completed second fiscal quarter, shares held by non-affiliates of the registrant had an aggregate market value of approximately $1.1 billion, based on the closing price for the registrant’s ordinary shares as reported on the New York Stock Exchange on such date.

As of August 13, 2018, the registrant had 36,454,146 ordinary shares, $0.01 par value, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement relating to its 2018 Annual Meeting of Shareholders are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. Such proxy statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

FABRINET

ANNUAL REPORT ON FORM 10-K

For the Fiscal Year Ended June 29, 2018

Table of Contents

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PART I

Overview

We provide advanced optical packaging and precision optical, electro-mechanical and electronic manufacturing services to original equipment manufacturers (“OEMs”) of complex products such as optical communication components, modules and sub-systems, industrial lasers, medical devices and sensors. We offer a broad range of advanced optical and electro-mechanical capabilities across the entire manufacturing process, including process design and engineering, supply chain management, manufacturing, complex printed circuit board assembly, advanced packaging, integration, final assembly and test. Although we focus primarily on low-volume production of a wide variety of high complexity products, which we refer to as “low-volume, high-mix,” we also have the capability to accommodate high-volume production. Based on our experience with and positive feedback we have received from our customers, we believe we are a global leader in providing these services to the optical communications, industrial lasers and automotive markets.

Our customer base includes companies in complex industries that require advanced precision manufacturing capabilities, such as optical communications, industrial lasers, automotive and sensors. Our customers in these industries support a growing number of end-markets, including automotive, biotechnology, communications, materials processing, medical devices, metrology and semiconductor processing. Our total revenues for the year ended June 29, 2018 (“fiscal year 2018”) decreased by $48.6 million, or 3.4%, from $1.42 billion for the year ended June 30, 2017 (“fiscal year 2017”) to $1.37 billion for fiscal year 2018. Our revenues from lasers, sensors and other markets as a percentage of total revenues increased from 22.0% for fiscal year 2017 to 27.1% for fiscal year 2018, while our revenues from optical communications products as a percentage of total revenues have decreased from 78.0% for fiscal year 2017 to 72.9% for fiscal year 2018.

In many cases, we are the sole outsourced manufacturing partner used by our customers for the products that we produce for them. The products that we manufacture for our OEM customers include:

We also design and fabricate application-specific crystals, lenses, prisms, mirrors, laser components and substrates (collectively referred to as “customized optics”) and other custom and standard borosilicate, clear

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fused quartz, and synthetic fused silica glass products (collectively referred to as “customized glass”). We incorporate our customized optics and glass into many of the products we manufacture for our OEM customers, and we also sell customized optics and glass in the merchant market.

We believe we offer differentiated manufacturing services through our optical and electro-mechanical process technologies and our strategic alignment with our customers. Our dedicated process and design engineers, who have a deep knowledge in materials sciences and physics, are able to tailor our service offerings to accommodate our customers’ complex engineering assignments. Our range of capabilities, from the design of customized optics and glass through process engineering and testing of finished assemblies, provides us with a knowledge base that we believe often leads to improvements in our customers’ product development cycles, manufacturing cycle times, quality and reliability, manufacturing yields and end product costs. We offer an efficient, technologically advanced and flexible manufacturing infrastructure designed to enable the scale production of low-volume, high-mix products, as well as high-volume products. We specialize in complex prototype and new product introduction services, with specialized resources to meet customers’ quick-turn printed circuit board assembly (“PCBA”) and early stage manufacturing requirements. We have a dedicated engineering team to support the advanced optical packaging needs of our customers’ cutting edge products, which allows them to accelerate development and time-to-market for such products. We often provide a “factory-within-a-factory” manufacturing environment to safeguard our customers’ intellectual property by physically segregating certain key employees and manufacturing space from the resources we use for other customers. We also provide our customers with a customized software platform to monitor all aspects of the manufacturing process, enabling our customers to remotely access our databases to monitor yields, inventory positions, work-in-progress status and vendor quality data in real time. We believe there is no other manufacturing services provider with a similar breadth and depth of optical and electro-mechanical engineering and process technology capabilities that does not directly compete with its customers in their end-markets. As a result, we believe we are more closely aligned and better able to develop long-term relationships with our customers than our competitors.

We are organized and operate in a single segment. See Note 20, Business segments and geographic information of Notes to Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K, which is incorporated herein by reference.

As of June 29, 2018, our facilities comprised approximately 2.0 million total square feet, including approximately 0.2 million square feet of office space and approximately 1.8 million square feet devoted to manufacturing and related activities, of which approximately 0.8 million square feet are clean room facilities. Of the aggregate square footage of our facilities, approximately 1.5 million square feet are located in Thailand and the remaining balance is located in the People’s Republic of China (“PRC” or “China”), the United Kingdom, the United States and the Cayman Islands. See Part I, Item 2. Properties of this Annual Report on Form 10-K.

Industry Background

Optical Communications

Many optical communications OEMs have reduced internal manufacturing capacity and transitioned to a low-cost and more efficient manufacturing base. By outsourcing production to third parties, OEMs are better able to concentrate their efforts and resources on what they believe are their core strengths, such as research and development, and sales and marketing. Additionally, outsourcing production often allows OEMs to reduce product costs, improve quality, access advanced process design and manufacturing technologies and achieve accelerated time-to-market and time-to-volume production. The principal barrier to the trend towards outsourcing in the optics industry has been the shortage of third-party manufacturing partners with the necessary optical process capabilities and robust intellectual property protection.

Demand for optical communications components and modules is influenced by the level and rate of development of optical communications infrastructure and carrier and enterprise network expansion, as well as

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rapid expansion of data center infrastructures. Carrier demand for optical communications network equipment has increased as a direct result of higher network utilization and increased demand for bandwidth capacity. The increase in network traffic volumes has been driven by increasing demand for voice, data and video services delivered over wired and wireless Internet protocol, or IP, networks. The bandwidth demands for data center access have been largely driven by social media applications and cloud services, and continue to increase very rapidly.

Industrial Lasers, Sensors and Others

The optical and electro-mechanical process technologies used in the optical communications market also have applications in other similarly complex end-markets that require advanced precision manufacturing capabilities, such as automotive, industrial lasers, medical devices, and sensors. These markets are substantially larger than the optical communications components and modules market. Growth in the industrial lasers, medical, and sensors markets is expected to be driven by demand for:

Outsourcing of production by industrial laser and sensor OEMs has historically been limited. We believe industrial laser and sensor OEMs are increasingly recognizing the benefits of outsourcing that OEMs in other industries, such as optical communications, have been able to achieve.

Our Competitive Strengths

We believe we have succeeded in providing differentiated services to the optical communications, industrial lasers, medical, and sensors industries due to our long-term focus on optical and electro-mechanical process technologies, strategic alignment with our customers and our commitment to total customer satisfaction. More specifically, our key competitive strengths include:

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Our Growth Strategy

The key elements of our growth strategy are to:

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In March 2018, we began laying the groundwork for a new facility in Israel, where we expect to continue our proven model of providing local NPI services, helping our customers with design for manufacturability, and then transferring those programs to Thailand for volume manufacturing.

Service Offerings

We offer integrated precision optical, electro-mechanical, and electronic manufacturing services and customized optics and glass fabrication services for our OEM customers.

Precision Optical, Electro-Mechanical, and Electronic Manufacturing Services

Process Design and Engineering

We continuously analyze our customers’ product designs for cost and manufacturability improvements. We perform detailed design for manufacturability studies and design of experiments to assist in optimizing a product’s design for the lowest cost possible without compromising the quality specifications of form, fit and function. In the case of a new product design, we may assist in assembling one or more prototype products using the same production line and the same engineering and manufacturing teams that would be used for product qualification and volume production. We often transfer production from a customer’s internal prototype or production lines to our own facilities, requiring a copy-exact: the setup of a production process identical to the one used by our customer to minimize the number of variables and expedite qualification.

Advanced Optical Packaging

We have a dedicated team of experienced engineers supporting our advanced optical packaging development capabilities. These highly qualified engineers work closely with our customers to understand the

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development requirements of their new products and assist them to build prototypes, as well as source materials, optimize manufacturing processes and develop schedules to bring these products to volume production. We maintain a real-time roadmap for the packaging requirements of our customers and the industry in general. Our advanced packaging team develops and maintains generic recipes that are readily available to be tailored and refined for the specific new applications of our customers, which helps to further accelerate prototype development and product delivery time.

Printed Circuit Board Assembly and Test

Printed circuit board assembly involves attaching electronic components, such as integrated circuits, capacitors, receivers, transceivers and other components and modules to printed circuit boards. We employ a variety of mounting and assembly technologies, including SMT, PTH and ACT, press-fit, and other connection processes that are focused on miniaturization and increasing the density of component placement on printed circuit boards. These technologies, which support the needs of our customers to provide greater functionality in smaller products, include chip-scale packaging, ball grid array, direct chip attach and high density interconnect. We perform in-circuit, functional and environmental testing of printed circuit board assemblies to verify all components are properly inserted, attached and the electrical circuits are complete, and that the board or assembly operates in accordance with its final design and manufacturing specifications.

Dedicated New Product Introduction

We are committed to providing NPI capabilities designed to ensure that our customers’ products get to market as quickly as possible. Co-locating strong engineering services in process design, prototyping, design for manufacturability (“DFM”) and test at these locations gives customers as full suite of NPI services for quick-turn PCBA to box-build to full system assembly. Stringent IP protection protocols are strictly enforced throughout the entire process, safeguarding our customers’ intellectual property. Our NPI sites are outfitted with state-of-the-art production equipment that mirrors the equipment used in our low-cost manufacturing facilities, ensuring a fast, smooth transition to a low-cost production environment once the product is qualified.

Qualifications

Production line and environmental qualifications require a variety of process engineering and technical skills, and the use of specialized equipment. Many of the products that we produce for our customers require extensive environmental and reliability qualification involving, in some cases, a three to six months or longer duration prior to volume production. The qualification phase may include a customer’s certification of a production line or process and one or a series of qualification tests for mechanical integrity and environmental endurance as specified by an industry standards organization, such as Telcordia for telecommunication equipment. We have extensive expertise in the planning, executing, troubleshooting and ultimate success of these qualifications and testing environments, which provides our customers a higher likelihood of completing these qualifications in a timely fashion.

Continuous Improvement and Optimization

Once we have completed the qualification phase and stabilized production yields, we shift our focus to cost and quality optimization. This requires a close working relationship with our customer to optimize processes and identify alternative sources for materials to improve efficiency, yields and cost. Design and process improvements may include reducing the number of parts, simplifying the assembly process, eliminating non-value add operations, using standard materials and optimizing manufacturing lines.

Supply Chain and Inventory Management

Our expertise in supply chain and materials management often allows us to further reduce costs and cycle times for our customers. Our procurement and materials management services include planning, purchasing,

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expediting, warehousing and financing materials from thousands of suppliers. We have created a proprietary set of automated manufacturing resource planning tools to manage our inventory. We have also implemented inventory management strategies with certain suppliers that enable us to use inventory on an as-needed basis and provide on-site stocking programs.

Quality Control

We believe the integration of our manufacturing and test controls, quality systems, and software platforms contribute significantly to our ability to deliver high-quality products on a consistent basis and reduce the risk that we will be required to repair or replace defective products. Our manufacturing execution system (“MES”) is directly integrated with our test system and enterprise resource planning (“ERP”) database allowing us to respond to any process deviations in real time. We work with customers to develop product-specific test strategies. We also provide a variety of test management services, including material and process testing and reliability testing. In addition to providing yield, manufacturing data tracking and other information, our data tracking system also performs process route checking to ensure that the products follow correct process steps, and the test results meet all specified criteria. Our test capabilities include traditional PCBA testing, mechanical testing and optical testing, which includes parametric testing, such as insertion loss, return loss and extinction ratio, and functional testing (e.g., bit error ratio).

Customized Glass and Crystal Optics Fabrication

We design and fabricate our own customized glass and crystal optics, which are core components of the higher level assemblies that we manufacture for our customers. Our fabrication facilities are located in Fuzhou, China and Mountain Lakes, New Jersey. Our customized glass and crystal optics products include the following:

Technology

Based on our experience with customers and our qualitative assessment of our capabilities, we believe we provide a broader array of process technologies to the optics industry than any other manufacturing services provider. We also continue to invest in customized optics and glass technology including in the areas of crystal growth, crystal and glass processing, optical coating, polishing and lapping, optical assemblies and precision glass drawing. We intend to continue to increase our process engineering capabilities and manufacturing

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technologies to extend our product portfolio and continue to gain market share in the optics industry. Our internally developed and licensed technologies include the following:

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We continuously invest in new and optimized processes to accommodate the next generation of optical devices, such as optical packaging, anti-reflective coating and complex printed circuit board technologies. We believe many of these manufacturing processes and technologies will be key to developing and commercializing the next generation of optical devices, which may include multi-function passive optics and photonic integrated circuits (which are devices that incorporate various optical components and modules into a packaged chip), receivers integrated with an optical amplifier, and active optical cabling. We also anticipate our customers will continue to desire our vertically integrated capabilities, designing customized optics and glass to be incorporated into optical components, modules and complete network or laser systems.

Customers, Sales and Marketing

The optical communications market we serve is highly concentrated. Therefore, we expect a significant percentage of our total revenues will continue to come from a small number of customers. During fiscal year 2018 and fiscal year 2017, we had one customer, Lumentum Operations LLC, that contributed 10% or more of our total revenues. This customer accounted for 16% and 17% of our total revenues during the respective fiscal years.

The production of optical devices is characterized by a lengthy qualification process. In particular, the qualification and field testing of the products that we produce for our customers may take three to six months or longer to complete. Generally, we must qualify our production process with our customers, and the products that we manufacture must also meet the product quality requirements of our customers’ customers. While most of our customers do not purchase our services until they qualify the services and satisfactorily complete factory audits and vendor evaluations, we typically produce a test run of their products to demonstrate that the products we produce will meet their qualification standards in advance of receiving an order. As part of this process, our engineers work closely with the customer’s design and procurement teams. We believe that the rigorous product transfer and qualification processes, and the close relationships that we develop with our customers during those processes, results in greater visibility into product life cycles and longer-term customer engagements.

Backlog

We are substantially dependent on orders we receive and fill on a short-term basis. Although we often receive a 12-month forecast from our customers, our customer contracts do not provide any assurance of future sales, and sales are typically made pursuant to individual purchase orders that have short lead times and are subject to revision or cancellation. Because of the possibility of changes in delivery or acceptance schedules, cancellations of orders, returns or price reductions, we do not believe that backlog is a reliable indicator of our future revenues.

Suppliers of Raw Materials

Our manufacturing operations use a wide variety of optical, semiconductor, mechanical and electronic components, assemblies and raw materials. We generally purchase materials from our suppliers through standard purchase orders, as opposed to long-term supply agreements. We rely on sole-source suppliers for a number of critical materials. Some of these sole-source suppliers are small businesses, which presents risks to us based on their financial health and reliability, which we continually monitor. We have historically experienced supply shortages resulting from various causes, including reduced yields by our suppliers, which have prevented us from manufacturing products for our customers in a timely manner. While we continually undertake programs to strengthen our supply chain, we are experiencing, and expect for the foreseeable future to continue to experience, strain on our supply chain, as well as periodic supplier problems. We have incurred, and expect to continue to incur for the foreseeable future, costs to address these problems.

Quality

We have an extensive quality management system that focuses on continual process improvement and achieving high levels of customer satisfaction. We employ a variety of enhanced statistical engineering

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techniques and other tools to improve product and service quality. In addition, we generally offer a warranty ranging from one to five years on the products that we assemble. Generally, this warranty is limited to our workmanship and our liability is capped at the price of the product.

Our quality management systems help to ensure that the products we provide to our customers meet or exceed industry standards. We maintain the following certifications: ISO9001 for Manufacturing Quality Management Systems; ISO14001 for Environmental Management Systems; TL9000 for Telecommunications Industry Quality Certification; IATF16949 for Automotive Industry Quality Certification; ISO13485 for Medical Devices Industry Quality Certification; AS9100 for Aerospace Industry Quality Certification; NADCAP (National Aerospace and Defense Contractors Accreditation Program) for Quality Assurance throughout the Aerospace and Defense Industries; and OHSAS18001 for Occupational Health and Safety Management Systems. We also maintain compliance with various additional standards imposed by the U.S. Food and Drug Administration, or FDA, with respect to the manufacture of medical devices.

Additionally, we are required to register with the FDA and other regulatory bodies and are subject to continual review and periodic inspection for compliance with various regulations, including testing, quality control and documentation procedures. We hold the following additional certifications: ANSI ESD S20.20 for facilities and manufacturing process control, in compliance with ESD standard; Transported Asset Protection Association, or TAPA, for Logistic Security Management System; and CSR-DIW for Corporate Social Responsibility in Thailand. In the European Union, we are required to maintain certain ISO certifications in order to sell our precision optical, electro-mechanical and electronic manufacturing services and we must undergo periodic inspections by regulatory bodies to obtain and maintain these certifications.

In addition to these standards, we are committed to the deployment of sustainable manufacturing, lean initiatives, and continuous improvement throughout our operations. The implementation of lean manufacturing initiatives helps improve efficiency and reduce waste in the manufacturing process in areas such as inventory on hand, set up times, and floor space and the number of people required for production, while Kaizen and Six Sigma ensures continuous improvement by reducing process variation.

Competition

Although the manufacturing services market is highly competitive, we believe that there are significant barriers to entry in our existing and target markets, including lengthy sales cycles, the need to demonstrate complex precision optical and electro-mechanical engineering and manufacturing capabilities to a prospective customer and the ability to protect a customer’s intellectual property.

Our overall competitive position depends upon a number of factors, including:

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Competitors in the market for optical manufacturing services include Benchmark Electronics, Inc., Celestica Inc., Sanmina-SCI Corporation, Jabil Circuit, Inc. and Venture Corporation Limited, as well as the internal manufacturing capabilities of our customers. Our customized optics and glass operations face competition from companies such as Browave Corporation, Fujian Castech Crystals, Inc., Photop Technologies, Inc. and Research Electro-Optic, Inc. Our UK competitors for printed circuit board assemblies include STI Limited and Axiom Manufacturing Services Limited.

Intellectual Property

Our success depends, in part, on our ability to protect our customers’ intellectual property. We license various technologies from our customers on a non-exclusive, royalty-free, non-transferable basis for the sole purpose of allowing us to manufacture products for those customers in accordance with their specifications. We have no rights to disclose, use, sublicense or sell this licensed technology for any other purpose. The duration of these licenses is limited to the duration of the underlying supply or manufacturing agreement. To meet the demands of certain customers, we created a factory-within-a-factory manufacturing environment that physically separates the manufacturing sites from one another. Some customers, for example, demand anonymity at our facilities while other customers require additional security measures such as biometric devices to safeguard their segregated manufacturing areas.

We regard our own manufacturing process technologies and customized optics and glass designs as proprietary intellectual property. We own any process engineering technology independently developed in-house by our technical staff. As part of our manufacturing services, to the extent we utilize our own manufacturing process technologies in the manufacture of our customers’ products, we grant our customers a royalty-free license to these process engineering technologies for the purpose of allowing our customers to make their products. Any process engineering or other improvements that we develop in connection with the improvement or optimization of a process for the manufacturing of a customer’s products are immediately assigned to that customer. To protect our proprietary rights, we rely largely upon a combination of trade secrets, non-disclosure agreements and internal security systems. Historically, patents have not played a significant role in the protection of our proprietary rights. Nevertheless, we currently have a relatively small number of solely-owned and jointly-held PRC patents in various customized optic technologies with expiration dates between 2022 and 2034. We believe that both our evolving business practices and industry trends may result in the continued growth of our patent portfolio and its importance to us, particularly as we expand our business.

Environmental Regulation

We are subject to a variety of international and U.S. laws and other legal requirements relating to the use, disposal, cleanup of and human exposure to hazardous materials. To date, such laws and regulations have not materially affected our business. We do not anticipate any material capital expenditures for environmental control facilities for the foreseeable future. While to date we are not aware of any material exposures, there can be no assurance that environmental matters will not arise in the future or that costs will not be incurred with respect to sites as to which no problem is currently known.

Social Responsibility

Our corporate social responsibility practices focus on creating better social, economic and environmental outcomes for all stakeholders in the global electronics supply chain. These outcomes include: improved conditions for workers, increased efficiency and productivity for customers and suppliers, economic development, and a clean environment for our communities. We are committed to implementing programs that focus on driving continuous improvements in social, ethical, and environmental compliance throughout all of our global operating units in accordance with our Code of Business Conduct. As a guide to achieve this end, we look at principles, policies and standards as prescribed by the Electronics Industry Citizenship Coalition (“EICC”), an association of global electronics companies whose mission is to enable companies to improve the social and environmental conditions in the global supply chain. Fabrinet is a full member of the EICC.

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Corporate Structure

Fabrinet was incorporated under the laws of the Cayman Islands in August 1999 and commenced business operations in January 2000. We have fifteen direct and indirect subsidiaries, all of which are wholly-owned. As the parent company, we enter into contracts directly with our customers, and have entered into various inter-company agreements with some of our subsidiaries, while our subsidiaries, Casix, Inc., FBN New Jersey Manufacturing, Inc., Fabrinet West, Inc., and Fabrinet UK Limited, each enter into sales contracts or purchase orders directly with their customers. We have inter-company agreements with Fabrinet Co., Ltd. and FBN New Jersey Manufacturing, Inc., whereby each provides manufacturing services to us. We also have inter-company agreements with Fabrinet USA, Inc. and Fabrinet Pte., Ltd. to provide us certain administrative and business development services.

Employees

As of June 29, 2018, we employed approximately 10,579 full-time employees worldwide, including approximately 10,271 employees in manufacturing operations and 308 employees in business development and general and administrative functions. None of our employees are represented by a labor union. We have not experienced any work stoppages, slowdowns, or strikes. We consider our relations with our employees to be positive.

Available Information

Our website is located at www.fabrinet.com. The information posted on our website is not incorporated into this Annual Report on Form 10-K. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge through the “Investors” section of our website as soon as reasonably practicable after we electronically file such material with, or furnish it to, the U.S. Securities and Exchange Commission (“SEC”). You may also access all of our public filings through the SEC’s website at www.sec.gov. Further, a copy of this Annual Report on Form 10-K is located at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Information on the operation of the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330.

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Investing in our ordinary shares involves a high degree of risk. You should carefully consider the following risks as well as the other information contained in this Annual Report on Form 10-K, including our consolidated financial statements and the related notes, before investing in our ordinary shares. The risks and uncertainties described below are not the only ones that we may face. Additional risks and uncertainties of which we are unaware, or that we currently deem immaterial, also may become important factors that affect us or our ordinary shares. If any of the following risks actually occur, they may harm our business, financial condition and operating results. In this event, the market price of our ordinary shares could decline and you could lose some or all of your investment.

Risks Related to Our Business

Our sales depend on a small number of customers. A reduction in orders from any of these customers, the loss of any of these customers, or a customer exerting significant pricing and margin pressures on us could harm our business, financial condition and operating results.

We have depended, and will continue to depend, upon a small number of customers for a significant percentage of our total revenues. During fiscal year 2018 and fiscal year 2017, we had one customer, Lumentum Operations LLC, that contributed 10% or more of our total revenues. This customer accounted for 16% and 17% of our total revenues during the respective fiscal years. Dependence on a small number of customers means that a reduction in orders from, a loss of, or other adverse actions by any one of these customers would reduce our revenues and could have a material adverse effect on our business, financial condition and operating results.

Further, our customer concentration increases the concentration of our accounts receivable and our exposure to payment default by any of our key customers. Many of our existing and potential customers have substantial debt burdens, have experienced financial distress or have static or declining revenues, all of which may be exacerbated by adverse conditions in the credit markets, continual uncertainty in global economies and the impacts of Brexit. Certain of our customers have gone out of business, declared bankruptcy, been acquired, or announced their withdrawal from segments of the optics market. We generate significant accounts payable and inventory for the services that we provide to our customers, which could expose us to substantial and potentially unrecoverable costs if we do not receive payment from our customers.

Reliance on a small number of customers gives those customers substantial purchasing power and leverage in negotiating contracts with us. In addition, although we enter into master supply agreements with our customers, the level of business to be transacted under those agreements is not guaranteed. Instead, we are awarded business under those agreements on a project-by-project basis. Some of our customers have at times significantly reduced or delayed the volume of manufacturing services that they order from us. If we are unable to maintain our relationships with our existing significant customers, our business, financial condition and operating results could be harmed.

Consolidation in the markets we serve could harm our business, financial condition and operating results.

Consolidation in the markets we serve has resulted in a reduction in the number of potential customers for our services. For example, in March 2018, Lumentum Holdings Inc. and Oclaro, Inc., both of which are our customers, entered into an agreement for Lumentum to acquire Oclaro. In some cases, consolidation among our customers has led to a reduction in demand for our services as customers acquired the capacity to manufacture products in-house.

Consolidation among our customers and their customers may continue and may adversely affect our business, financial condition and operating results in several ways. Consolidation among our customers and their

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customers may result in a smaller number of large customers whose size and purchasing power give them increased leverage that may result in, among other things, decreases in our average selling prices. In addition to pricing pressures, this consolidation may also reduce overall demand for our manufacturing services if customers obtain new capacity to manufacture products in-house or discontinue duplicate or competing product lines in order to streamline operations. If demand for our manufacturing services decreases, our business, financial condition and operating results could be harmed.

If the optical communications market does not expand as we expect, our business may not grow as fast as we expect, which could adversely impact our business, financial condition and operating results.

Our future success as a provider of precision optical, electro-mechanical and electronic manufacturing services for the optical communications market depends on the continued growth of the optics industry and, in particular, the continued expansion of global information networks, particularly those directly or indirectly dependent upon a fiber optic infrastructure. As part of that growth, we anticipate that demand for voice, video, and other data services delivered over high-speed connections (both wired and wireless) will continue to increase. Without network and bandwidth growth, the need for enhanced communications products would be jeopardized. Currently, demand for network services and for high-speed broadband access, in particular, is increasing but growth may be limited by several factors, including, among others: (1) relative strength or weakness of the global economy or certain countries or regions, (2) an uncertain regulatory environment, and (3) uncertainty regarding long-term sustainable business models as multiple industries, such as the cable, traditional telecommunications, wireless and satellite industries, offer competing content delivery solutions. The optical communications market also has experienced periods of overcapacity, some of which have occurred even during periods of relatively high network usage and bandwidth demands. If the factors described above were to slow, stop or reverse the expansion in the optical communications market, our business, financial condition and operating results would be negatively affected.

Our quarterly revenues, gross profit margins and operating results have fluctuated significantly and may continue to do so in the future, which may cause the market price of our ordinary shares to decline or be volatile.

Our quarterly revenues, gross profit margins, and operating results have fluctuated significantly and may continue to fluctuate significantly in the future. For example, any of the risks described in this “Risk Factors” section and, in particular, the following factors, could cause our quarterly and annual revenues, gross profit margins, and operating results to fluctuate from period to period:

Therefore, we believe that quarter-to-quarter comparisons of our operating results may not be useful in predicting our future operating results. You should not rely on our results for one quarter as any indication of our future performance. Quarterly variations in our operations could result in significant volatility in the market price of our ordinary shares.

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If we are unable to continue diversifying our precision optical and electro-mechanical manufacturing services across other markets within the optics industry, such as the semiconductor processing, biotechnology, metrology and material processing markets, or if these markets do not grow as fast as we expect, our business may not grow as fast as we expect, which could adversely impact our business, financial condition and operating results.

We intend to continue diversifying across other markets within the optics industry, such as the semiconductor processing, biotechnology, metrology, and material processing markets, to reduce our dependence on the optical communications market and to grow our business. Currently, the optical communications market contributes the significant majority of our revenues. There can be no assurance that our efforts to further expand and diversify into other markets within the optics industry will prove successful or that these markets will continue to grow as fast as we expect. In the event that the opportunities presented by these markets prove to be less than anticipated, if we are less successful than expected in diversifying into these markets, or if our margins in these markets prove to be less than expected, our growth may slow or stall, and we may incur costs that are not offset by revenues in these markets, all of which could harm our business, financial condition and operating results.

We face significant competition in our business. If we are unable to compete successfully against our current and future competitors, our business, financial condition and operating results could be harmed.

Our current and prospective customers tend to evaluate our capabilities against the merits of their internal manufacturing as well as the capabilities of other third-party manufacturers. We believe the internal manufacturing capabilities of current and prospective customers are our primary competition. This competition is particularly strong when our customers have excess manufacturing capacity, as was the case when the markets that we serve experienced a significant downturn in 2008 and 2009 that resulted in underutilized capacity. Should our existing and potential customers have excess manufacturing capacity at their facilities, it could adversely affect our business. In addition, as a result of the 2011 flooding in Thailand, some of our customers began manufacturing products internally or using other third-party manufacturers that were not affected by the flooding. If our customers choose to manufacture products internally rather than to outsource production to us, or choose to outsource to a third-party manufacturer, our business, financial condition and operating results could be harmed.

Competitors in the market for optical manufacturing services include Benchmark Electronics, Inc., Celestica Inc., Sanmina-SCI Corporation, Jabil Circuit, Inc., and Venture Corporation Limited. Our customized optics and glass operations face competition from companies such as Browave Corporation, Fujian Castech Crystals, Inc., Photop Technologies, Inc., and Research Electro-Optic, Inc. Our UK competitors for printed circuit board assemblies include STI Limited and Axiom Manufacturing Services Limited. Other existing contract manufacturing companies, original design manufacturers or outsourced semiconductor assembly and test companies could also enter our target markets. In addition, we may face more competitors as we attempt to penetrate new markets.

Many of our customers and potential competitors have longer operating histories, greater name recognition, larger customer bases and significantly greater resources than we have. These advantages may allow them to devote greater resources than we can to the development and promotion of service offerings that are similar or superior to our service offerings. These competitors may also engage in more extensive research and development, undertake more far-reaching marketing campaigns, adopt more aggressive pricing policies or offer services that achieve greater market acceptance than ours. These competitors may also compete with us by making more attractive offers to our existing and potential employees, suppliers, and strategic partners. Further, consolidation in the optics industry could lead to larger and more geographically diverse competitors. New and increased competition could result in price reductions for our services, reduced gross profit margins or loss of market share. We may not be able to compete successfully against our current and future competitors, and the competitive pressures we face may harm our business, financial condition and operating results.

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Cancellations, delays or reductions of customer orders and the relatively short-term nature of the commitments of our customers could harm our business, financial condition and operating results.

We do not typically obtain firm purchase orders or commitments from our customers that extend beyond 13 weeks. While we work closely with our customers to develop forecasts for periods of up to one year, these forecasts are not binding and may be unreliable. Customers may cancel their orders, change production quantities from forecasted volumes or delay production for a number of reasons beyond our control. Any material delay, cancellation or reduction of orders could cause our revenues to decline significantly and could cause us to hold excess materials. Many of our costs and operating expenses are fixed. As a result, a reduction in customer demand could decrease our gross profit and harm our business, financial condition and operating results.

In addition, we make significant decisions, including production schedules, material procurement commitments, personnel needs and other resource requirements, based on our estimate of our customers’ requirements. The short-term nature of our customers’ commitments and the possibility of rapid changes in demand for their products reduce our ability to accurately estimate the future requirements of our customers. Inability to forecast the level of customer orders with certainty makes it difficult to allocate resources to specific customers, order appropriate levels of materials and maximize the use of our manufacturing capacity. This could also lead to an inability to meet a spike in production demand, all of which could harm our business, financial condition and operating results.

Our exposure to financially troubled customers or suppliers could harm our business, financial condition and operating results.

We provide manufacturing services to companies, and rely on suppliers, that have in the past and may in the future experience financial difficulty, particularly in light of uncertainty in the credit markets and the overall economy that affected access to capital and liquidity. As a result, we devote significant resources to monitor receivables and inventory balances with certain of our customers. If our customers experience financial difficulty, we could have difficulty recovering amounts owed to us from these customers, or demand for our services from these customers could decline. If our suppliers experience financial difficulty, we could have trouble sourcing materials necessary to fulfill production requirements and meet scheduled shipments. Any such financial difficulty could adversely affect our operating results and financial condition by resulting in a reduction in our revenues, a charge for inventory write-offs, a provision for doubtful accounts, and an increase in working capital requirements due to increases in days in inventory and in days in accounts receivable. For example, in July 2014, one of our customers filed for bankruptcy protection under the Local Trade Court in France; however, the potential losses from this particular customer did not have a significant effect on our consolidated financial statements.

Natural disasters (like the 2011 flooding in Thailand), epidemics, acts of terrorism and other political and economic developments could harm our business, financial condition, and operating results.

Natural disasters, such as the 2011 flooding in Thailand, where most of our manufacturing operations are located, could severely disrupt our manufacturing operations and increase our supply chain costs. These events, over which we have little or no control, could cause a decrease in demand for our services, make it difficult or impossible for us to manufacture and deliver products and for our suppliers to deliver components allowing us to manufacture those products, require large expenditures to repair or replace our facilities, or create delays and inefficiencies in our supply chain. For example, the 2011 flooding in Thailand forced us to temporarily shut down all of our manufacturing facilities in Thailand and cease production permanently at our Chokchai facility in Thailand, which adversely affected our ability to meet our customers’ demands during fiscal year 2012. In some countries in which we operate, including the PRC and Thailand, potential outbreaks of infectious diseases such as the H1N1 influenza virus, severe acute respiratory syndrome (“SARS”) or bird flu could disrupt our manufacturing operations, reduce demand for our customers’ products and increase our supply chain costs. In addition, increased international political instability, evidenced by the threat or occurrence of terrorist attacks,

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enhanced national security measures, conflicts in the Middle East and Asia, strained international relations arising from these conflicts and the related decline in consumer confidence and economic weakness, may hinder our ability to do business. Any escalation in these events or similar future events may disrupt our operations and the operations of our customers and suppliers, and may affect the availability of materials needed for our manufacturing services. Such events may also disrupt the transportation of materials to our manufacturing facilities and finished products to our customers. These events have had, and may continue to have, an adverse impact on the U.S. and world economy in general, and customer confidence and spending in particular, which in turn could adversely affect our total revenues and operating results. The impact of these events on the volatility of the U.S. and world financial markets also could increase the volatility of the market price of our ordinary shares and may limit the capital resources available to us, our customers and our suppliers.

We are not fully insured against all potential losses. Natural disasters or other catastrophes could adversely affect our business, financial condition and operating results.

Our current property and casualty insurance covers loss or damage to our property and third-party property over which we have custody and control, as well as losses associated with business interruption, subject to specified exclusions and limitations such as coinsurance, facilities location sub-limits and other policy limitations and covenants. Even with insurance coverage, natural disasters or other catastrophic events, including acts of war, could cause us to suffer substantial losses in our operational capacity and could also lead to a loss of opportunity and to a potential adverse impact on our relationships with our existing customers resulting from our inability to produce products for them, for which we might not be compensated by existing insurance. This in turn could have a material adverse effect on our business, financial condition and operating results.

Fluctuations in foreign currency exchange rates and changes in governmental policies regarding foreign currencies could increase our operating costs, which would adversely affect our operating results.

Volatility in the functional and non-functional currencies of our entities and the U.S. dollar could seriously harm our business, financial condition, and operating results. The primary impact of currency exchange fluctuations is on our cash, receivables, and payables of our operating entities. We may experience significant unexpected losses from fluctuations in exchange rates. For example, in the three months ended June 29, 2018, we experienced a $0.9 million foreign exchange loss, which negatively affected our net income per share by $0.02.

Our customer contracts generally require that our customers pay us in U.S. dollars. However, the majority of our payroll and other operating expenses are paid in Thai baht. As a result of these arrangements, we have significant exposure to changes in the exchange rate between the Thai baht and the U.S. dollar, and our operating results are adversely impacted when the U.S. dollar depreciates relative to the Thai baht and other currencies. We have experienced such depreciation in the U.S. dollar as compared with the Thai baht, and our results have been adversely impacted by this fluctuation in exchange rates. As of June 29, 2018, the U.S. dollar had depreciated approximately 2% against the Thai baht since June 30, 2017. Further, while we attempt to hedge against certain exchange rate risks, we typically enter into hedging contracts with maturities of up to 12 months, leaving us exposed to longer term changes in exchange rates.

Also, we have significant exposure to changes in the exchange rate between the Chinese Renminbi (“RMB”) and pound sterling (“GBP”) and the U.S. dollar. The expenses of our subsidiaries located in the PRC and the United Kingdom are denominated in RMB and GBP, respectively. Currently, RMB are convertible in connection with trade- and service-related foreign exchange transactions, foreign debt service, and payment of dividends. The PRC government may at its discretion restrict access in the future to foreign currencies for current account transactions. If this occurs, our PRC subsidiary may not be able to pay us dividends in U.S. dollars without prior approval from the PRC State Administration of Foreign Exchange. In addition, conversion of RMB for most capital account items, including direct investments, is still subject to government approval in the PRC. This restriction may limit our ability to invest the earnings of our PRC subsidiary. As of June 29, 2018, the U.S. dollar had depreciated approximately 10% against the RMB since June 30, 2017. There remains significant international pressure on the PRC government to adopt a substantially more liberalized currency policy. GBP are convertible in

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connection with trade- and service-related foreign exchange transactions and foreign debt service. As of June 29, 2018, the U.S. dollar had depreciated approximately 6% against the GBP since June 30, 2017. Any appreciation in the value of the RMB and GBP against the U.S. dollar could negatively impact our operating results.

We purchase some of the critical materials used in certain of our products from a single source or a limited number of suppliers. Supply shortages have in the past, and could in the future, impair the quality, reduce the availability or increase the cost of materials, which could harm our revenues, profitability and customer relations.

We rely on a single source or a limited number of suppliers for critical materials used in a significant number of the products we manufacture. We generally purchase these single or limited source materials through standard purchase orders and do not maintain long-term supply agreements with our suppliers. We generally use a rolling 12 month forecast based on anticipated product orders, customer forecasts, product order history, backlog, and warranty and service demand to determine our materials requirements. Lead times for the parts and components that we order vary significantly and depend on factors such as manufacturing cycle times, manufacturing yields, and the availability of raw materials used to produce the parts or components. Historically, we have experienced supply shortages resulting from various causes, including reduced yields by our suppliers, which prevented us from manufacturing products for our customers in a timely manner. Our revenues, profitability and customer relations could be harmed by a stoppage or delay of supply, a substitution of more expensive or less reliable parts, the receipt of defective parts or contaminated materials, an increase in the price of supplies, or an inability to obtain reductions in price from our suppliers in response to competitive pressures.

We continue to undertake programs to strengthen our supply chain. Nevertheless, we are experiencing, and expect for the foreseeable future to continue to experience, strain on our supply chain, and periodic supplier problems. We have incurred, and expect to continue to incur for the foreseeable future, costs to address these problems.

Managing our inventory is complex and may require write-downs due to excess or obsolete inventory, which could cause our operating results to decrease significantly in a given fiscal period.

Managing our inventory is complex. We are generally required to procure material based upon the anticipated demand of our customers. The inaccuracy of these forecasts or estimates could result in excess supply or shortages of certain materials. Inventory that is not used or expected to be used as and when planned may become excess or obsolete. Generally, we are unable to use most of the materials purchased for one of our customers to manufacture products for any of our other customers. Additionally, we could experience reduced or delayed product shipments or incur additional inventory write-downs and cancellation charges or penalties, which would increase costs and could harm our business, financial condition and operating results. While our agreements with customers are structured to mitigate our risks related to excess or obsolete inventory, enforcement of these provisions may result in material expense, and delay in payment for inventory. If any of our significant customers becomes unable or unwilling to purchase inventory or does not agree to such contractual provisions in the future, our business, financial condition and operating results may be harmed.

We conduct operations in a number of countries, which creates logistical and communications challenges for us and exposes us to other risks that could harm our business, financial condition and operating results.

The vast majority of our operations, including manufacturing and customer support, are located primarily in the Asia-Pacific region. The distances between Thailand, the PRC and our customers and suppliers globally, create a number of logistical and communications challenges for us, including managing operations across multiple time zones, directing the manufacture and delivery of products across significant distances, coordinating the procurement of raw materials and their delivery to multiple locations and coordinating the activities and decisions of our management team, the members of which are based in different countries.

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Our customers are located throughout the world. Total revenues from the bill-to-location of customers outside of North America accounted for 53.1%, 53.4%, and 46.2% of our total revenues for fiscal year 2018, fiscal year 2017 and fiscal year 2016, respectively. We expect that total revenues from the bill-to-location of customers outside of North America will continue to account for a significant portion of our total revenues. Our customers also depend on international sales, which further exposes us to the risks associated with international operations. In addition, our international operations and sales subject us to a variety of domestic and foreign trade regulatory requirements.

Political unrest and demonstrations, as well as changes in the political, social, business or economic conditions in Thailand, could harm our business, financial condition and operating results.

The majority of our assets and manufacturing operations are located in Thailand. Therefore, political, social, business and economic conditions in Thailand have a significant effect on our business. In March 2018, Thailand was assessed as a medium-high overall risk by AON Political Risk, a risk management, insurance and consulting firm. Any changes to tax regimes, laws, exchange controls or political action in Thailand may harm our business, financial condition and operating results.

Thailand has a history of political unrest that includes the involvement of the military as an active participant in the ruling government. In recent years, political unrest in the country has sparked political demonstrations and, in some instances, violence. In May 2014, the Thai military took over the government in a coup, and it continues to rule the country today. It is unknown how long it may take for the current political situation to be resolved and for democracy to be restored, or what effects the current political situation may have on Thailand and the surrounding region. In October 2016, Thailand’s King Bhumibol Adulyadej died at the age of 88, and was recently succeeded by his son King Maha Vajiralongkorn. While this was a peaceful succession, any future succession crisis or political instability in the Kingdom of Thailand could prevent shipments from entering or leaving the country, disrupt our ability to manufacture products in Thailand, and force us to transfer our operations to more stable, and potentially more costly, regions.

Further, the Thai government may raise the minimum wage standards for labor and could repeal certain promotional certificates that we have received or tax holidays for certain export and value added taxes that we enjoy, either preventing us from engaging in our current or anticipated activities or subjecting us to higher tax rates. A new regime could nationalize our business or otherwise seize our assets and any other future political instability could harm our business, financial condition and operating results.

We expect to continue to invest in our manufacturing operations in the PRC, which will continue to expose us to risks inherent in doing business in the PRC, any of which risks could harm our business, financial condition and operating results.

We anticipate that we will continue to invest in our customized optics manufacturing facilities located in Fuzhou, China. Because these operations are located in the PRC, they are subject to greater political, legal and economic risks than the geographies in which the facilities of many of our competitors and customers are located. In particular, the political and economic climate in the PRC (both at national and regional levels) is fluid and unpredictable. In March 2018, AON Political Risk assessed the PRC as a medium overall risk. A large part of the PRC’s economy is still being operated under varying degrees of control by the PRC government. By imposing industrial policies and other economic measures, such as control of foreign exchange, taxation, import and export tariffs, environmental regulations, land use rights, intellectual property and restrictions on foreign participation in the domestic market of various industries, the PRC government exerts considerable direct and indirect influence on the development of the PRC economy. Many of the economic reforms carried out by the PRC government are unprecedented or experimental and are expected to change further. Any changes to the political, legal or economic climate in the PRC could harm our business, financial condition and operating results.

Our PRC subsidiary is a “wholly foreign-owned enterprise” and is therefore subject to laws and regulations applicable to foreign investment in the PRC, in general, and laws and regulations applicable to wholly

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foreign-owned enterprises, in particular. The PRC has made significant progress in the promulgation of laws and regulations pertaining to economic matters such as corporate organization and governance, foreign investment, commerce, taxation and trade. However, the promulgation of new laws, changes in existing laws and abrogation of local regulations by national laws may have a negative impact on our business and prospects. In addition, these laws and regulations are relatively new, and published cases are limited in volume and non-binding. Therefore, the interpretation and enforcement of these laws and regulations involve significant uncertainties. Laws may be changed with little or no prior notice, for political or other reasons. These uncertainties could limit the legal protections available to foreign investors. Furthermore, any litigation in the PRC may be protracted and result in substantial costs and diversion of resources and management’s attention.

Our business and operations would be adversely impacted in the event of a failure of our information technology infrastructure and/or cyber security attacks.

We rely upon the capacity, availability and security of our information technology hardware and software infrastructure. For instance, we use a combination of standard and customized software platforms to manage, record, and report all aspects of our operations and, in many instances, enable our customers to remotely access certain areas of our databases to monitor yields, inventory positions, work-in-progress status and vendor quality data. We are constantly expanding and updating our information technology infrastructure in response to our changing needs. Any failure to manage, expand and update our information technology infrastructure or any failure in the operation of this infrastructure could harm our business.

Despite our implementation of security measures, our systems are vulnerable to damages from computer viruses, natural disasters, unauthorized access and other similar disruptions. Any system failure, accident or security breach could result in disruptions to our operations. To the extent that any disruptions, cyber-attack or other security breach results in a loss or damage to our data, or inappropriate disclosure of confidential information, it could harm our business. In addition, we may be required to incur significant costs to protect against damage caused by these disruptions or security breaches in the future.

Unfavorable worldwide economic conditions may negatively affect our business, operating results and financial condition.

Volatility and disruption in the capital and credit markets, depressed consumer confidence, and negative global economic conditions have affected levels of business and consumer spending. Concerns about the potential default of various national bonds and debt backed by individual countries as well as the politics impacting these, could negatively impact the U.S. and global economies and adversely affect our financial results. In particular, Brexit and economic uncertainty in Europe has led to reduced demand in some of our customers’ optical communications product portfolios. Brexit could also lead to economic and legal uncertainty, including significant volatility in global stock markets and currency exchange rates, and increasingly divergent laws and regulations as the United Kingdom determines which European Union laws to replace or replicate. Any of these effects of Brexit, among others, could adversely affect our financial results. If economic conditions in Europe do not recover or if they continue to deteriorate, our operating results could be harmed.

Uncertainty about worldwide economic conditions poses a risk as businesses may further reduce or postpone spending in response to reduced budgets, tight credit, negative financial news and declines in income or asset values, which could adversely affect our business, financial condition and operating results and increase the volatility of our share price. In addition, our ability to access capital markets may be restricted, which could have an impact on our ability to react to changing economic and business conditions and could also adversely affect our business, financial condition and operating results.

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If we fail to adequately expand our manufacturing capacity, we will not be able to grow our business, which would harm our business, financial condition and operating results. Conversely, if we expand too much or too rapidly, we may experience excess capacity, which would harm our business, financial condition and operating results.

We may not be able to pursue many large customer orders or sustain our historical growth rates if we do not have sufficient manufacturing capacity to enable us to commit to provide customers with specified quantities of products. If our customers do not believe that we have sufficient manufacturing capacity, they may: (1) outsource all of their production to another source that they believe can fulfill all of their production requirements; (2) look to a second source for the manufacture of additional quantities of the products that we currently manufacture for them; (3) manufacture the products themselves; or (4) otherwise decide against using our services for their new products.

Most recently, we expanded our manufacturing capacity by building a new facility in Chonburi, Thailand, which was completed in March 2017. We may continue to devote significant resources to the expansion of our manufacturing capacity, and any such expansion will be expensive, will require management’s time and may disrupt our operations. In the event we are unsuccessful in our attempts to expand our manufacturing capacity, our business, financial condition and operating results could be harmed.

However, if we expand our manufacturing capacity and are unable to promptly utilize the additional space due to reduced demand for our services, an inability to win new projects, new customers or penetrate new markets, or if the optics industry does not grow as we expect, we may experience periods of excess capacity, which could harm our business, financial condition and operating results.

We may experience manufacturing yields that are lower than expected, potentially resulting in increased costs, which could harm our business, operating results and customer relations.

Manufacturing yields depend on a number of factors, including the following:

Lower volume production due to continually changing designs generally results in lower yields. Manufacturing yields and margins can also be lower if we receive or inadvertently use defective or contaminated materials from our suppliers. In addition, our customer contracts typically provide that we will supply products at a fixed price each quarter, which assumes specific production yields and quality metrics. If we do not meet the yield assumptions and quality metrics used in calculating the price of a product, we may not be able to recover the costs associated with our failure to do so. Consequently, our operating results and profitability may be harmed.

If the products that we manufacture contain defects, we could incur significant correction costs, demand for our services may decline and we may be exposed to product liability and product warranty claims, which could harm our business, financial condition, operating results and customer relations.

We manufacture products to our customers’ specifications, and our manufacturing processes and facilities must comply with applicable statutory and regulatory requirements. In addition, our customers’ products and the manufacturing processes that we use to produce them are often complex. As a result, products that we manufacture may at times contain manufacturing or design defects, and our manufacturing processes may be subject to errors or fail to be in compliance with applicable statutory or regulatory requirements. Additionally,

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not all defects are immediately detectible. The testing procedures of our customers are generally limited to the evaluation of the products that we manufacture under likely and foreseeable failure scenarios. For various reasons (including, among others, the occurrence of performance problems that are unforeseeable at the time of testing or that are detected only when products are fully deployed and operated under peak stress conditions), these products may fail to perform as expected after their initial acceptance by a customer.

We generally provide a warranty of between one to five years on the products that we manufacture for our customers. This warranty typically guarantees that products will conform to our customers’ specifications and be free from defects in workmanship. Defects in the products we manufacture, whether caused by a design, engineering, manufacturing or component failure or by deficiencies in our manufacturing processes and whether during or after the warranty period, could result in product or component failures, which may damage our business reputation, whether or not we are indemnified for such failures. We could also incur significant costs to repair or replace defective products under warranty, particularly when such failures occur in installed systems. In some instances, we may also be required to incur costs to repair or replace defective products outside of the warranty period in the event that a recurring defect is discovered in a certain percentage of a customer’s products delivered over an agreed upon period of time. We have experienced product or component failures in the past and remain exposed to such failures, as the products that we manufacture are widely deployed throughout the world in multiple environments and applications. Further, due to the difficulty in determining whether a given defect resulted from our customer’s design of the product or our manufacturing process, we may be exposed to product liability or product warranty claims arising from defects that are not our fault. In addition, if the number or type of defects exceeds certain percentage limitations contained in our contractual arrangements, we may be required to conduct extensive failure analysis, re-qualify for production or cease production of the specified products.

Product liability claims may include liability for personal injury or property damage. Product warranty claims may include liability to pay for a recall, repair or replacement of a product or component. Although liability for these claims is generally assigned to our customers in our contracts, even where they have assumed liability, our customers may not, or may not have the resources to, satisfy claims for costs or liabilities arising from a defective product. Additionally, under one of our contracts, in the event the products we manufacture do not meet the end-customer’s testing requirements or otherwise fail, we may be required to pay penalties to our customer, including a fee during the time period that the customer or end-customer’s production line is not operational as a result of the failure of the products that we manufacture, all of which could harm our business, operating results and customer relations. If we engineer or manufacture a product that is found to cause any personal injury or property damage or is otherwise found to be defective, we could incur significant costs to resolve the claim. While we maintain insurance for certain product liability claims, we do not maintain insurance for any recalls and, therefore, would be required to pay any associated costs that are determined to be our responsibility. A successful product liability or product warranty claim in excess of our insurance coverage or any material claim for which insurance coverage is denied, limited, is not available or has not been obtained could harm our business, financial condition and operating results.

If we are unable to meet regulatory quality standards applicable to our manufacturing and quality processes for the products we manufacture, our business, financial condition or operating results could be harmed.

As a manufacturer of products for the optics industry, we are required to meet certain certification standards, including the following: ISO9001 for Manufacturing Quality Management Systems; ISO14001 for Environmental Management Systems; TL9000 for Telecommunications Industry Quality Certification; IATF16949 for Automotive Industry Quality Certification; ISO13485 for Medical Devices Industry Quality Certification; AS9100 for Aerospace Industry Quality Certification; NADCAP (National Aerospace and Defense Contractors Accreditation Program) for Quality Assurance throughout the Aerospace and Defense Industries; and OHSAS18001 for Occupational Health and Safety Management Systems. We also maintain compliance with various additional standards imposed by the U.S. Food and Drug Administration, or FDA, with respect to the manufacture of medical devices.

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Additionally, we are required to register with the FDA and other regulatory bodies and are subject to continual review and periodic inspection for compliance with various regulations, including testing, quality control and documentation procedures. We hold the following additional certifications: ANSI ESD S20.20 for facilities and manufacturing process control, in compliance with ESD standard; Transported Asset Protection Association, or TAPA, for Logistic Security Management System; and CSR-DIW for Corporate Social Responsibility in Thailand. In the European Union, we are required to maintain certain ISO certifications in order to sell our precision optical, electro-mechanical and electronic manufacturing services and we must undergo periodic inspections by regulatory bodies to obtain and maintain these certifications. If any regulatory inspection reveals that we are not in compliance with applicable standards, regulators may take action against us, including issuing a warning letter, imposing fines on us, requiring a recall of the products we manufactured for our customers, or closing our manufacturing facilities. If any of these actions were to occur, it could harm our reputation as well as our business, financial condition and operating results.

If we fail to attract additional skilled employees or retain key personnel, our business, financial condition and operating results could suffer.

Our future success depends, in part, upon our ability to attract additional skilled employees and retain our current key personnel. We have identified several areas where we intend to expand our hiring, including business development, finance, human resources, operations and supply chain management. We may not be able to hire and retain such personnel at compensation levels consistent with our existing compensation and salary structure. Our future also depends on the continued contributions of our executive management team and other key management and technical personnel, each of whom would be difficult to replace. Although we have key person life insurance policies on some of our executive officers, the loss of any of our executive officers or key personnel or the inability to continue to attract qualified personnel could harm our business, financial condition and operating results.

Failure to comply with applicable environmental laws and regulations could have a material adverse effect on our business, financial condition and operating results.

The sale and manufacturing of products in certain states and countries may subject us to environmental laws and regulations. In addition, rules adopted by the U.S. Securities and Exchange Commission (“SEC”) implementing the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 impose diligence and disclosure requirements regarding the use of “conflict” minerals mined from the Democratic Republic of Congo and adjoining countries in the products we manufacture for our customers. Compliance with these rules has resulted in additional cost and expense, including for due diligence to determine and verify the sources of any conflict minerals used in the products we manufacture, and may result in additional costs of remediation and other changes to processes or sources of supply as a consequence of such verification activities. These rules may also affect the sourcing and availability of minerals used in the products we manufacture, as there may be only a limited number of suppliers offering “conflict free” metals that can be used in the products we manufacture for our customers.

Although we do not anticipate any material adverse effects based on the nature of our operations and these laws and regulations, we will need to ensure that we and, in some cases, our suppliers comply with applicable laws and regulations. If we fail to timely comply with such laws and regulations, our customers may cease doing business with us, which would have a material adverse effect on our business, financial condition and operating results. In addition, if we were found to be in violation of these laws, we could be subject to governmental fines, liability to our customers and damage to our reputation, which would also have a material adverse effect on our business, financial condition and operating results.

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We are subject to the risk of increased income taxes, which could harm our business, financial condition and operating results.

We are subject to income and other taxes in Thailand, the PRC, the United Kingdom and the United States. Our effective income tax rate, provision for income taxes and future tax liability could be adversely affected by numerous factors, including the results of tax audits and examinations, income before taxes being lower than anticipated in countries with lower statutory tax rates and higher than anticipated in countries with higher statutory tax rates, changes in income tax rates, changes in the valuation of deferred tax assets and liabilities, failure to meet obligations with respect to tax exemptions, and changes in tax laws and regulations. Our U.S. federal and state tax returns remain open to examination for the tax years 2014 through 2017. In addition, tax returns that remain open to examination in Thailand, the PRC and the United Kingdom range from the tax years 2012 through 2017. The results of audits and examinations of previously filed tax returns and continuing assessments of our tax exposures may have an adverse effect on our provision for income taxes and tax liability.

We base our tax position upon the anticipated nature and conduct of our business and upon our understanding of the tax laws of the various countries in which we have assets or conduct activities. However, our tax position is subject to review and possible challenge by tax authorities and to possible changes in law, which may have retroactive effect. Fabrinet (the “Cayman Islands Parent”) is an exempted company incorporated in the Cayman Islands. We maintain manufacturing operations in Thailand, the PRC, the United Kingdom and the United States. We cannot determine in advance the extent to which some jurisdictions may require us to pay taxes or make payments in lieu of taxes. Under the current laws of the Cayman Islands, we are not subject to tax in the Cayman Islands on income or capital gains. We have received this undertaking for a 20-year period ending August 24, 2019. As that date approaches, we intend to request a renewal with the office of the Clerk of the Cabinet for another 20 years, which we believe is likely to be granted. In the event that the Cayman Islands does not renew our request for tax-free treatment, our financial condition and operating results would be harmed.

Preferential tax treatment from the Thai government in the form of a corporate tax exemption is also currently available to us through June 2020 and June 2026 on income generated from projects to manufacture certain products at our Pinehurst campus and Chonburi campus, respectively. Such preferential tax treatment is contingent on various factors, including the export of our customers’ products out of Thailand and our agreement not to move our manufacturing facilities out of our current province in Thailand for at least 15 years from the date on which preferential tax treatment was granted (i.e., at least until June 2020 in the case of our Pinehurst campus and until June 2026 in the case of our Chonburi campus). We will lose this favorable tax treatment in Thailand unless we comply with these restrictions, and as a result we may delay or forego certain strategic business decisions due to these tax considerations.

There is also a risk that Thailand or another jurisdiction in which we operate may treat the Cayman Islands Parent as having a permanent establishment in such jurisdiction and subject its income to tax. If we become subject to additional taxes in any jurisdiction or if any jurisdiction begins to treat the Cayman Islands Parent as having a permanent establishment, such tax treatment could materially and adversely affect our business, financial condition and operating results.

Certain of our subsidiaries provide products and services to, and may from time to time undertake certain significant transactions with, us and our other subsidiaries in different jurisdictions. For instance, we have intercompany agreements in place that provide for our California and Singapore subsidiaries to provide administrative services for the Cayman Islands Parent, and the Cayman Islands Parent has entered into manufacturing agreements with our Thai subsidiary. In general, related party transactions and, in particular, related party financing transactions, are subject to close review by tax authorities. Moreover, several jurisdictions in which we operate have tax laws with detailed transfer pricing rules that require all transactions with non-resident related parties to be priced using arm’s length pricing principles and require the existence of contemporaneous documentation to support such pricing. Tax authorities in various jurisdictions could challenge the validity of our related party transfer pricing policies. Such a challenge generally involves a complex area of

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taxation and a significant degree of judgment by management. If any taxation authorities are successful in challenging our financing or transfer pricing policies, our income tax expense may be adversely affected and we could become subject to interest and penalty charges, which may harm our business, financial condition and operating results.

On December 22, 2017, the Tax Cuts and Jobs Act (the “TCJ Act”) was enacted into law. The TCJ Act provides for significant changes to the U.S. Internal Revenue Code of 1986, as amended (the “Code”), that impact corporate taxation requirements, such as the reduction of the federal tax rate for corporations from 35% to 21% and changes or limitations to certain tax deductions. While we are able to make reasonable estimates of the impact of the reduction in corporate rate, the final impact of the TCJ Act may differ from these estimates, due to, among other things, changes in our interpretations and assumptions, additional guidance that may be issued by the I.R.S., and actions we may take.

We may encounter difficulties completing or integrating acquisitions, asset purchases and other types of transactions that we may pursue in the future, which could disrupt our business, cause dilution to our shareholders and harm our business, financial condition and operating results.

We have grown and may continue to grow our business through acquisitions, asset purchases and other types of transactions, including the transfer of products from our customers and their suppliers. Most recently, we acquired Fabrinet UK in September 2016. Acquisitions and other strategic transactions typically involve many risks, including the following:

Acquisitions are inherently risky, and we can provide no assurance that the acquisition of Fabrinet UK or any future acquisitions will be successful or will not harm our business, financial condition and operating results.

We may not be able to obtain capital when desired on favorable terms, if at all, or without dilution to our shareholders.

We anticipate that our current cash and cash equivalents, together with cash provided by operating activities and funds available through our working capital and credit facilities, will be sufficient to meet our current and anticipated needs for general corporate purposes for at least the next 12 months. We operate in a market, however, that makes our prospects difficult to evaluate. It is possible that we may not generate sufficient cash flow from operations or otherwise have the capital resources to meet our future capital needs. If this occurs, we may need additional financing to execute on our current or future business strategies.

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Furthermore, if we raise additional funds through the issuance of equity or convertible debt securities, the percentage ownership of our shareholders could be significantly diluted, and these newly-issued securities may have rights, preferences or privileges senior to those of existing shareholders. If adequate additional funds are not available or are not available on acceptable terms, if and when needed, our ability to fund our operations, take advantage of unanticipated opportunities, develop or enhance our manufacturing services, hire additional technical and other personnel, or otherwise respond to competitive pressures could be significantly limited.

Intellectual property infringement claims against our customers or us could harm our business, financial condition and operating results.

Our services involve the creation and use of intellectual property rights, which subject us to the risk of intellectual property infringement claims from third parties and claims arising from the allocation of intellectual property rights among us and our customers.

Our customers may require that we indemnify them against the risk of intellectual property infringement arising out of our manufacturing processes. If any claims are brought against us or our customers for such infringement, whether or not these claims have merit, we could be required to expend significant resources in defense of such claims. In the event of an infringement claim, we may be required to spend a significant amount of time and money to develop non-infringing alternatives or obtain licenses. We may not be successful in developing such alternatives or obtaining such licenses on reasonable terms or at all, which could harm our business, financial condition and operating results.

Any failure to protect our customers’ intellectual property that we use in the products we manufacture for them could harm our customer relationships and subject us to liability.

We focus on manufacturing complex optical products for our customers. These products often contain our customers’ intellectual property, including trade secrets and know-how. Our success depends, in part, on our ability to protect our customers’ intellectual property. We may maintain separate and secure areas for customer proprietary manufacturing processes and materials and dedicate floor space, equipment, engineers and supply chain management to protect our customers’ proprietary drawings, materials and products. The steps we take to protect our customers’ intellectual property may not adequately prevent its disclosure or misappropriation. If we fail to protect our customers’ intellectual property, our customer relationships could be harmed and we may experience difficulty in establishing new customer relationships. In addition, our customers might pursue legal claims against us for any failure to protect their intellectual property, possibly resulting in harm to our reputation and our business, financial condition and operating results.

We have incurred and will continue to incur significant increased costs as a result of operating as a public company, and our management will be required to continue to devote substantial time to various compliance initiatives.

The Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, as well as other rules implemented by the SEC and the New York Stock Exchange (“NYSE”), impose various requirements on public companies, including requiring changes in corporate governance practices. These and proposed corporate governance laws and regulations under consideration may further increase our compliance costs. If compliance with these various legal and regulatory requirements diverts our management’s attention from other business concerns, it could have a material adverse effect on our business, financial condition and operating results. The Sarbanes-Oxley Act requires, among other things, that we assess the effectiveness of our internal control over financial reporting annually and disclosure controls and procedures quarterly. While we are able to assert in this Annual Report on Form 10-K that our internal control over financial reporting was effective as of June 29 2018, we cannot predict the outcome of our testing in future periods. If we are unable to assert in any future reporting periods that our internal control over financial reporting is effective (or if our independent registered public accounting firm is unable to express an opinion on the effectiveness of

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our internal controls), we could lose investor confidence in the accuracy and completeness of our financial reports, which would have an adverse effect on our share price.

Given the nature and complexity of our business and the fact that some members of our management team are located in Thailand while others are located in the United States, control deficiencies may periodically occur. For example, following an internal investigation by the Audit Committee of our board of directors in September 2014 concerning various accounting cut-off issues, we identified certain significant deficiencies in our internal control over financial reporting, which have been remediated. While we have ongoing measures and procedures to prevent and remedy control deficiencies, if they occur there can be no assurance that we will be successful or that we will be able to prevent material weaknesses or significant deficiencies in our internal control over financial reporting in the future. Moreover, if we identify deficiencies in our internal control over financial reporting that are deemed to be material weaknesses in future periods, the market price of our ordinary shares could decline and we could be subject to potential delisting by the NYSE and review by the NYSE, the SEC, or other regulatory authorities, which would require the expenditure by us of additional financial and management resources. As a result, our shareholders could lose confidence in our financial reporting, which would harm our business and the market price of our ordinary shares.

There are inherent uncertainties involved in estimates, judgments and assumptions used in the preparation of financial statements in accordance with U.S. GAAP. Any changes in estimates, judgments and assumptions could have a material adverse effect on our business, financial condition and operating results.

The preparation of financial statements in accordance with U.S. GAAP involves making estimates, judgments and assumptions that affect reported amounts of assets (including intangible assets), liabilities and related reserves, revenues, expenses and income. Estimates, judgments and assumptions are inherently subject to change in the future, and any such changes could result in corresponding changes to the amounts of assets, liabilities, revenues, expenses and income. Any such changes could have a material adverse effect on our business, financial condition and operating results.

We are subject to governmental export and import controls in several jurisdictions that could subject us to liability or impair our ability to compete in international markets.

We are subject to governmental export and import controls in Thailand, the PRC, the United Kingdom and the United States that may limit our business opportunities. Various countries regulate the import of certain technologies and have enacted laws that could limit our ability to export or sell the products we manufacture. The export of certain technologies from the United States, the United Kingdom and other nations to the PRC is barred by applicable export controls, and similar prohibitions could be extended to Thailand, thereby limiting our ability to manufacture certain products. Any change in export or import regulations or related legislation, shift in approach to the enforcement of existing regulations, or change in the countries, persons or technologies targeted by such regulations, could limit our ability to offer our manufacturing services to existing or potential customers, which could harm our business, financial condition and operating results.

We are subject to the risk of increased tariffs on products and goods we purchase from off-shore sources (including Chinese sources) and directly or indirectly imported into the United States.

The U.S. Presidential Administration has recently implemented or announced plans to impose tariffs on a wide-range of products and goods manufactured in China that directly or indirectly are imported into the Unites States. In response, various countries and economic regions have announced plans or intentions to impose retaliatory tariffs on a wide-range of products they import from the United States. These newly imposed or threatened U.S. tariffs and retaliatory tariffs could have the effect of increasing the cost of materials we use to manufacture certain products, which could result in lower margins. The tariffs could also result in disruptions to our supply chain, as suppliers struggle to fill orders from companies trying to purchase goods in bulk ahead of announced tariffs. Although we currently believe that the incremental costs to us of these tariffs will be

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immaterial, should the amount of these tariffs increase, should they be applied to additional categories of components used in our manufacturing activities and should we for any reason be unable to pass on such tariffs to our customers, our operating results would be harmed.

The loan agreements for our long-term debt obligations and other credit facilities contain financial ratio covenants that may impair our ability to conduct our business.

The loan agreements for our long-term and short-term debt obligations contain financial ratio covenants that may limit management’s discretion with respect to certain business matters. These covenants require us to maintain a specified maximum total leverage ratio, minimum debt service coverage ratio (earnings before interest and depreciation and amortization plus cash on hand minus short-term debt), a minimum tangible net worth and a minimum quick ratio, which may restrict our ability to incur additional indebtedness and limit our ability to use our cash. In the event of our default on these loans or a breach of a covenant, the lenders may immediately cancel the loan agreement, deem the full amount of the outstanding indebtedness immediately due and payable, charge us interest on a monthly basis on the full amount of the outstanding indebtedness and, if we cannot repay all of our outstanding obligations, sell the assets pledged as collateral for the loan in order to fulfill our obligation. We may also be held responsible for any damages and related expenses incurred by the lender as a result of any default. Any failure by us or our subsidiaries to comply with these agreements could harm our business, financial condition and operating results.

Our business could be negatively affected as a result of activist shareholders.

If an activist investor takes an ownership position in our ordinary shares, responding to actions by such activist shareholder could be costly and time-consuming, disrupt our operations and divert the attention of management and our employees. Additionally, perceived uncertainties as to our future direction as a result of shareholder activism or changes to the composition of our board of directors may lead to the perception of a change in the direction of our business or other instability, which may be exploited by our competitors, cause concern to our current or potential customers, and make it more difficult to attract and retain qualified personnel. If customers choose to delay, defer or reduce transactions with us or do business with our competitors instead of us because of any such issues, then our business, financial condition and operating results would be adversely affected. In addition, our share price could experience periods of increased volatility as a result of shareholder activism.

Our investment portfolio may become impaired by deterioration of the capital markets.

We use professional investment management firms to manage our excess cash and cash equivalents. Our marketable securities as of June 29, 2018 are primarily investments in a fixed income portfolio, including corporate bonds and commercial paper, U.S. agency and U.S. Treasury securities, and sovereign and municipal securities. Our investment portfolio may become impaired by deterioration of the capital markets. We follow an established investment policy and set of guidelines to monitor and help mitigate our exposure to interest rate and credit risk. The policy sets forth credit quality standards and limits our exposure to any one issuer, as well as our maximum exposure to various asset classes. The policy also provides that we may not invest in marketable securities with a maturity in excess of three years.

We regularly review our investment portfolio to determine if any security is other-than-temporarily impaired, which would require us to record an impairment charge in the period any such determination is made. In making this judgment, we evaluate, among other things, the duration and extent to which the fair value of a security is less than its cost; the financial condition of the issuer and any changes thereto; and our intent to sell, or whether we will more likely than not be required to sell, the security before recovery of its amortized cost basis. Our assessment on whether a security is other-than-temporarily impaired could change in the future due to new developments or changes in assumptions related to any particular security.

Should financial market conditions worsen, investments in some financial instruments may pose risks arising from market liquidity and credit concerns. In addition, any deterioration of the capital markets could

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cause our other income and expense to vary from expectations. As of June 29, 2018, we did not record any impairment charges associated with our investment portfolio of marketable securities, and although we believe our current investment portfolio has little risk of material impairment, we cannot predict future market conditions or market liquidity, or credit availability, and can provide no assurance that our investment portfolio will remain materially unimpaired.

Energy price volatility may negatively impact our business, financial condition and operating results.

We, along with our suppliers and customers, rely on various energy sources in our manufacturing and transportation activities. Energy prices have been subject to increases and volatility caused by market fluctuations, supply and demand, currency fluctuation, production and transportation disruption, world events and government regulations. While we are currently experiencing lower energy prices, a significant increase is possible, which could increase our raw material and transportation costs. In addition, increased transportation costs of our suppliers and customers could be passed along to us. We may not be able to increase our prices enough to offset these increased costs, and any increase in our prices may reduce our future customer orders, which could harm our business, financial condition and operating results.

Risks Related to Ownership of Our Ordinary Shares

Our share price may be volatile due to fluctuations in our operating results and other factors, including the activities and operating results of our customers or competitors, any of which could cause our share price to decline.

Our revenues, expenses and results of operations have fluctuated in the past and are likely to do so in the future from quarter to quarter and year to year due to the risk factors described in this section and elsewhere in this Annual Report on Form 10-K. In addition to market and industry factors, the price and trading volume of our ordinary shares may fluctuate in response to a number of events and factors relating to us, our competitors, our customers and the markets we serve, many of which are beyond our control. Factors such as variations in our total revenues, earnings and cash flow, announcements of new investments or acquisitions, changes in our pricing practices or those of our competitors, commencement or outcome of litigation, sales of ordinary shares by us or our principal shareholders, fluctuations in market prices for our services and general market conditions could cause the market price of our ordinary shares to change substantially. Any of these factors may result in large and sudden changes in the volume and price at which our ordinary shares trade. Among other things, volatility and weakness in our share price could mean that investors may not be able to sell their shares at or above the prices they paid. Volatility and weakness could also impair our ability in the future to offer our ordinary shares or convertible securities as a source of additional capital and/or as consideration in the acquisition of other businesses.

Furthermore, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many companies. These fluctuations often have been unrelated or disproportionate to the operating performance of those companies. These broad market and industry fluctuations, as well as general economic, political and market conditions such as recessions, interest rate changes or international currency fluctuations, may cause the market price of our ordinary shares to decline. In the past, companies that have experienced volatility in the market price of their stock have been subject to securities class action litigation. We may be the target of this type of litigation in the future. Securities litigation against us could result in substantial costs and divert our management’s attention from other business concerns, which could seriously harm our business.

If securities or industry analysts do not publish research or if they publish misleading or unfavorable research about our business, the market price and trading volume of our ordinary shares could decline.

The trading market for our ordinary shares depends in part on the research and reports that securities or industry analysts publish about us or our business. If securities or industry analysts stop covering us, or if too few

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analysts cover us, the market price of our ordinary shares could be adversely impacted. If one or more of the analysts who covers us downgrades our ordinary shares or publishes misleading or unfavorable research about our business, our market price would likely decline. If one or more of these analysts ceases coverage of us or fails to publish reports on us regularly, demand for our ordinary shares could decrease, which could cause the market price or trading volume of our ordinary shares to decline.

We may become a passive foreign investment company, which could result in adverse U.S. tax consequences to U.S. investors.

Based upon estimates of the value of our assets, which are based in part on the trading price of our ordinary shares, we do not expect to be a passive foreign investment company, or PFIC, for U.S. federal income tax purposes for the taxable year 2018 or for the foreseeable future. However, despite our expectations, we cannot assure you that we will not be a PFIC for the taxable year 2018 or any future year because our PFIC status is determined at the end of each year and depends on the composition of our income and assets during such year. If we are a PFIC, our U.S. investors will be subject to increased tax liabilities under U.S. tax laws and regulations and to burdensome reporting requirements.

Certain provisions in our constitutional documents may discourage our acquisition by a third party, which could limit your opportunity to sell shares at a premium.

Our constitutional documents include provisions that could limit the ability of others to acquire control of us, modify our structure or cause us to engage in change-of-control transactions, including, among other things, provisions that:

These provisions could have the effect of depriving you of an opportunity to sell your ordinary shares at a premium over prevailing market prices by discouraging third parties from seeking to acquire control of us in a tender offer or similar transaction.

Our shareholders may face difficulties in protecting their interests because we are incorporated under Cayman Islands law.

Our corporate affairs are governed by our amended and restated memorandum and articles of association (“MOA”), by the Companies Law (as amended) of the Cayman Islands and the common law of the Cayman Islands. The rights of our shareholders and the fiduciary responsibilities of our directors under the laws of the Cayman Islands are not as clearly established under statutes or judicial precedent as in jurisdictions in the United States. Therefore, you may have more difficulty in protecting your interests than would shareholders of a corporation incorporated in a jurisdiction in the United States, due to the comparatively less developed nature of Cayman Islands law in this area.

The Companies Law permits mergers and consolidations between Cayman Islands companies and between Cayman Islands companies and non-Cayman Islands companies. Dissenting shareholders have the right to be paid the fair value of their shares (which, if not agreed between the parties, will be determined by the Cayman Islands court) if they follow the required procedures, subject to certain exceptions. Court approval is not required for a merger or consolidation which is effected in compliance with these statutory procedures.

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In addition, there are statutory provisions that facilitate the reconstruction and amalgamation of companies, provided that the arrangement is approved by a majority in number of each class of shareholders and creditors with whom the arrangement is to be made, and who must in addition represent three-fourths in value of each such class of shareholders or creditors, as the case may be, that are present and voting either in person or by proxy at a meeting convened for that purpose. The convening of the meeting and subsequently the arrangement must be sanctioned by the Grand Court of the Cayman Islands. A dissenting shareholder has the right to express to the court the view that the transaction ought not to be approved.

When a takeover offer is made and accepted by holders of 90.0% of the shares within four months, the offeror may, within a two-month period, require the holders of the remaining shares to transfer such shares on the terms of the offer. An objection can be made to the Grand Court of the Cayman Islands but this is unlikely to succeed unless there is evidence of fraud, bad faith or collusion.

If the arrangement and reconstruction is thus approved, the dissenting shareholder would have no rights comparable to appraisal rights, which would otherwise ordinarily be available to dissenting shareholders of a corporation incorporated in a jurisdiction in the United States, providing rights to receive payment in cash for the judicially determined value of the shares. This may make it more difficult for you to assess the value of any consideration you may receive in a merger or consolidation or to require that the offeror give you additional consideration if you believe the consideration offered is insufficient.

Shareholders of Cayman Islands exempted companies have no general rights under Cayman Islands law to inspect corporate records and accounts or to obtain copies of lists of shareholders. Our directors have discretion under our MOA to determine whether or not, and under what conditions, our corporate records may be inspected by our shareholders, but are not obliged to make them available to our shareholders. This may make it more difficult for you to obtain the information needed to establish any facts necessary for a shareholder motion or to solicit proxies from other shareholders in connection with a proxy contest.

Subject to limited exceptions, under Cayman Islands law, a minority shareholder may not bring a derivative action against the board of directors.

Certain judgments obtained against us by our shareholders may not be enforceable.

The Cayman Islands Parent is a Cayman Islands exempted company and substantially all of our assets are located outside of the United States. Given our domicile and the location of our assets, it may be difficult to enforce in U.S. courts judgments obtained in U.S. courts based on the civil liability provisions of the U.S. federal securities laws against us. In addition, there is uncertainty as to whether the courts of the Cayman Islands, Thailand or the PRC would recognize or enforce judgments of U.S. courts against us predicated upon the civil liability provisions of the securities laws of the United States or any state. In particular, a judgment in a U.S. court would not be recognized and accepted by Thai courts without a re-trial or examination of the merits of the case. In addition, there is uncertainty as to whether such Cayman Islands, Thai or PRC courts would be competent to hear original actions brought in the Cayman Islands, Thailand or the PRC against us predicated upon the securities laws of the United States or any state.

Not applicable.

Our principal registered office is located at c/o Intertrust Corporate Services (Cayman) Limited, 190 Elgin Avenue, George Town, Grand Cayman, KYI-9005, Cayman Islands. We have facilities located in Thailand, the PRC, the United Kingdom, the United States and the Cayman Islands that are used for manufacturing and/or

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general administration purposes. The following table presents the approximate square footage of our principal facilities as of June 29, 2018:

From time to time, we may be involved in litigation relating to claims arising in the ordinary course of our business. There currently are no material claims or actions pending or threatened against us.

Not applicable.

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PART II

Our ordinary shares are listed on the New York Stock Exchange under the symbol “FN”. The following table sets forth, for the time periods indicated, the highest and lowest intraday sales prices of our ordinary shares as reported on the New York Stock Exchange.

The equity compensation plan information required by this item, which includes a summary of the number of outstanding equity awards granted to employees and directors, as well as the number of securities remaining available for future issuance, under our equity compensation plans as of June 29, 2018, is incorporated by reference to our Proxy Statement for our 2018 Annual Meeting of Shareholders to be filed with the SEC within 120 days after the end of our fiscal year ended June 29, 2018.

Holders of Record

As of August 13, 2018, there were approximately 6 shareholders of record of our ordinary shares. Because many of our ordinary shares are held by brokers and other institutions on behalf of shareholders, we are unable to estimate the total number of shareholders represented by these record holders.

Dividends

We currently intend to retain any earnings for use in our business and do not currently intend to pay dividends on our ordinary shares. Dividends, if any, on our ordinary shares will be declared by and subject to the discretion of our board of directors. Even if our board of directors decides to distribute dividends, the form, frequency and amount of such dividends will depend upon our future operations and earnings, capital requirements and surplus, general financial conditions, contractual restrictions, applicable laws and regulations and other factors our board of directors may deem relevant.

Sales of Unregistered Securities

None.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

On August 21, 2017, we announced that our board of directors had approved a share repurchase program to permit us to repurchase up to $30.0 million worth of our issued and outstanding ordinary shares in the open market in accordance with applicable rules and regulations, at such time and such prices as management may decide. In February 2018, our board of directors approved an increase of $30.0 million to this share repurchase

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authorization, bringing the aggregate authorization to $60.0 million. The repurchased shares will be held as treasury stock. As of June 29, 2018, we had a remaining authorization to purchase up to an additional $17.6 million worth of our ordinary shares.

The following table summarizes share repurchase activity for the three months ended June 29, 2018:

Five-Year Performance Graph

The following performance graph shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section, and shall not be deemed to be incorporated by reference into any filing of Fabrinet under the Securities Act of 1933, as amended, or the Exchange Act.

The following graph compares the cumulative total return to holders of Fabrinet’s ordinary shares with the cumulative total return of the NASDAQ Composite Index, and the NASDAQ Telecommunications Index.

The graph assumes that $100 was invested in Fabrinet’s ordinary shares on June 28, 2013, and in each of the indices discussed above on June 30, 2013, including reinvestment of dividends. Historic stock performance is not necessarily indicative of future stock price performance.

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The selected consolidated financial data presented below should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and the related notes included elsewhere in this Annual Report on Form 10-K. The selected financial data set forth below as of June 29, 2018 and June 30, 2017, and for the fiscal years ended June 29, 2018, June 30, 2017 and June 24, 2016 are derived from the audited consolidated financial statements included elsewhere in this Annual Report on Form 10-K. The selected financial data as of June 24, 2016, June 26, 2015 and June 27, 2014, and for the fiscal years ended June 26, 2015 and June 27, 2014 are derived from the audited consolidated financial statements not included in this Annual Report on Form 10-K. Each of the fiscal years in the table below consisted of 52 weeks, except fiscal year 2017, which consisted of 53 weeks. The results presented below are not necessarily indicative of financial results to be achieved in future periods.

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In addition to historical information, this Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our or our industry’s actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Forward-looking statements include, but are not limited to, statements about:

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These forward-looking statements are subject to certain risks and uncertainties that could cause our actual results to differ materially from those reflected in the forward looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in this Annual Report on Form 10-K, in particular, the risks discussed under the heading “Risk Factors” in Item 1A, as well as those discussed in other documents we file with the Securities and Exchange Commission. We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. “We,” “us” and “our” refer to Fabrinet and its subsidiaries.

Overview

We provide advanced optical packaging and precision optical, electro-mechanical and electronic manufacturing services to original equipment manufacturers (“OEMs”) of complex products such as optical communication components, modules and sub-systems, industrial lasers, medical devices and sensors. We offer a broad range of advanced optical and electro-mechanical capabilities across the entire manufacturing process, including process design and engineering, supply chain management, manufacturing, complex printed circuit board assembly, advanced packaging, integration, final assembly and test. Although we focus primarily on low-volume production of a wide variety of high complexity products, which we refer to as “low-volume, high-mix,” we also have the capability to accommodate high-volume production. Based on our experience with, and positive feedback we have received from our customers, we believe we are a global leader in providing these services to the optical communications, industrial lasers and automotive markets.

Our customer base includes companies in complex industries that require advanced precision manufacturing capabilities such as optical communications, industrial lasers, automotive and sensors. The products that we manufacture for our OEM customers include selective switching products; tunable transponders and transceivers; active optical cables; solid state, diode-pumped, gas and fiber lasers; and sensors. In many cases, we are the sole outsourced manufacturing partner used by our customers for the products that we produce for them.

We also design and fabricate application-specific crystals, lenses, prisms, mirrors, laser components, and substrates (collectively referred to as “customized optics”) and other custom and standard borosilicate, clear fused quartz, and synthetic fused silica glass products (collectively referred to as “customized glass”). We incorporate our customized optics and glass into many of the products we manufacture for our OEM customers, and we also sell customized optics and glass in the merchant market.

Fiscal years

We utilize a 52-53 week fiscal year ending on the Friday in June closest to June 30. Fiscal year 2018 ended on June 29, 2018 and consisted of 52 weeks. Fiscal year 2017 ended on June 30, 2017 and consisted of 53 weeks. Fiscal year 2016 ended on June 24, 2016 and consisted of 52 weeks.

Revenues

We believe our ability to expand our relationships with existing customers and attract new customers is due to a number of factors, including our broad range of complex engineering and manufacturing service offerings, flexible low-cost manufacturing platform, process optimization capabilities, advanced supply chain management, excellent customer service and experienced management team. Although we expect the prices we charge for our manufactured products to decrease over time (partly as a result of competitive market forces), we still believe we will be able to maintain favorable pricing for our services because of our ability to reduce cycle time, adjust our product mix by focusing on more complicated products, improve product quality and yields, and reduce material costs for the products we manufacture. We believe these capabilities will enable us to help our OEM customers reduce their manufacturing costs while maintaining or improving the design, quality, reliability and delivery times of their products.

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Revenues, by percentage, from individual customers representing 10% or more of our total revenues in the respective periods were as follows:

Because we depend upon a small number of customers for a significant percentage of our total revenues, a reduction in orders from, a loss of, or any other adverse actions by, any one of these customers would reduce our revenues and could have a material adverse effect on our business, operating results and share price. Moreover, our customer concentration increases the concentration of our accounts receivable and payment default by any of our key customers will negatively impact our exposure. Many of our existing and potential customers have substantial debt burdens, have experienced financial distress or have static or declining revenues, all of which may be exacerbated by the continued uncertainty in the global economies. Certain customers have gone out of business or have been acquired or announced their withdrawal from segments of the optics market. We generate significant accounts payable and inventory for the services that we provide to our customers, which could expose us to substantial and potentially unrecoverable costs if we do not receive payment from our customers. Therefore, any financial difficulties that our key customers experience could materially and adversely affect our operating results and financial condition by generating charges for inventory write-offs, provisions for doubtful accounts, and increases in working capital requirements due to increased days inventory and in accounts receivable.

Furthermore, reliance on a small number of customers gives those customers substantial purchasing power and leverage in negotiating contracts with us. In addition, although we enter into master supply agreements with our customers, the level of business to be transacted under those agreements is not guaranteed. Instead, we are awarded business under those agreements on a project-by-project basis. Some of our customers have at times significantly reduced or delayed the volume of manufacturing services that they order from us. If we are unable to maintain our relationships with our existing significant customers, our business, financial condition and operating results could be harmed.

Revenues by Geography

We generate revenues from three geographic regions: North America, Asia-Pacific, and Europe. Revenues are attributed to a particular geographic area based on the bill-to-location of our customers, notwithstanding that our customers may ultimately ship their products to end customers in a different geographic region. The substantial majority of our revenues are derived from our manufacturing facilities in Asia-Pacific.

The percentage of our revenues generated from a bill-to-location outside of North America decreased from 53.4% in fiscal year 2017 to 53.1% in fiscal year 2018, which was partially due to a decrease in sales to our customers in Asia-Pacific by 0.2% and in Europe by 0.1%. Based on the short and medium term indications and forecasts from our customers, we expect that the portion of our future revenues attributable to customers in regions outside of North America will increase as compared with the portion of revenues attributable to such customers during fiscal year 2018.

The following table presents percentages of total revenues by geographic regions:

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Our Contracts

We enter into supply agreements with our customers which generally have an initial term of up to three years, subject to automatic renewals for subsequent one-year terms unless expressly terminated. Although there are no minimum purchase requirements in our supply agreements, our customers provide us with rolling forecasts of their demand requirements. Our supply agreements generally include provisions for pricing and periodic review of pricing, consignment of our customer’s unique production equipment to us, and the sharing of benefits from cost-savings derived from our efforts. We are generally required to purchase materials, which may include long lead-time materials and materials that are subject to minimum order quantities and/or non-cancelable or non-returnable terms, to meet the stated demands of our customers. After procuring materials, we manufacture products for our customers based on purchase orders that contain terms regarding product quantities, delivery locations and delivery dates. Our customers generally are obligated to purchase finished goods that we have manufactured according to their demand requirements. Materials that are not consumed by our customers within a specified period of time, or are no longer required due to a product’s cancellation or end-of-life, are typically designated as excess or obsolete inventory under our contracts. Once materials are designated as either excess or obsolete inventory, our customers are typically required to purchase such inventory from us even if they have chosen to cancel production of the related products.

Cost of Revenues

The key components of our cost of revenues are material costs, employee costs, and infrastructure-related costs. Material costs generally represent the majority of our cost of revenues. Several of the materials we require to manufacture products for our customers are customized for their products and often sourced from a single supplier or in some cases, our own subsidiaries. Shortages from sole-source suppliers due to yield loss, quality concerns and capacity constraints, among other factors, may increase our expenses and negatively impact our gross profit margin or total revenues in a given quarter. Material costs include scrap material. Historically, scrap rate diminishes during a product’s life cycle due to process, fixturing and test improvement and optimization.

A second significant element of our cost of revenues is employee costs, including indirect employee costs related to design, configuration and optimization of manufacturing processes for our customers, quality testing, materials testing and other engineering services; and direct costs related to our manufacturing employees. Direct employee costs include employee salaries, insurance and benefits, merit-based bonuses, recruitment, training and retention. Historically, our employee costs have increased primarily due to increases in the number of employees necessary to support our growth and, to a lesser extent, costs to recruit, train and retain employees. Our cost of revenues is significantly impacted by salary levels in Thailand, the PRC and the United Kingdom, the fluctuation of the Thai baht, Chinese Renminbi (“RMB”) and Pound Sterling (“GBP”) against our functional currency, the U.S. dollar, and our ability to retain our employees. We expect our employee costs to increase as wages continue to increase in Thailand and the PRC. Wage increases may impact our ability to sustain our competitive advantage and may reduce our profit margin. We seek to mitigate these cost increases through improvements in employee productivity, employee retention and asset utilization.

Our infrastructure costs are comprised of depreciation, utilities, facilities management and overhead costs. Most of our facility leases are long-term agreements. Our depreciation costs include buildings and fixed assets, primarily at our Pinehurst and Chonburi campuses in Thailand, and capital equipment located at each of our manufacturing locations.

During fiscal year 2018, fiscal year 2017 and fiscal year 2016, discretionary merit-based bonus awards were made to our non-executive employees. Charges included in cost of revenues for bonus awards to non-executive employees were $3.5 million, $3.2 million and $2.8 million for fiscal year 2018, fiscal year 2017 and fiscal year 2016, respectively.

Share-based compensation expense included in cost of revenues was $6.8 million, $5.3 million and $2.0 million for fiscal year 2018, fiscal year 2017 and fiscal year 2016, respectively.

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We expect to incur incremental costs of revenue as a result of our planned expansion into new geographic markets, though we are not able to determine the amount of these incremental expenses.

Selling, General and Administrative Expenses

Our SG&A expenses primarily consist of corporate employee costs for sales and marketing, general and administrative and other support personnel, including research and development expenses related to the design of customized optics and glass, travel expenses, legal and other professional fees, share-based compensation expense and other general expenses not related to cost of revenues. In fiscal year 2019, we expect our SG&A expenses will decrease compared with our fiscal year 2018 SG&A expenses.

The compensation committee of our board of directors approved a fiscal year 2018 executive incentive plan with quantitative objectives that were based solely on achieving certain revenue and non-GAAP gross margin targets for fiscal year 2018. Because we did not achieve the targets under our fiscal year 2018 executive incentive plan, no bonuses were paid under such plan. In fiscal year 2017, the compensation committee approved a fiscal year 2017 executive incentive plan with quantitative objectives that were based solely on achieving certain revenue and non-GAAP gross margin targets for our fiscal year ended June 30, 2017. In the three months ended September 29, 2017, the compensation committee awarded bonuses to our executive employees for Company achievements of performance under our fiscal 2017 executive incentive plan. Discretionary merit-based bonus awards are also available to our non-executive employees and payable on a quarterly basis.

Charges included in SG&A expenses for bonus distributions to non-executive and executive employees were $0.5 million, $4.4 million and $4.7 million for fiscal year 2018, fiscal year 2017 and fiscal year 2016, respectively.

Share-based compensation expense included in SG&A expenses was $15.8 million, $21.2 million and $7.9 million for fiscal year 2018, fiscal year 2017 and fiscal year 2016, respectively.

Additional Financial Disclosures

Foreign Exchange

As a result of our international operations, we are exposed to foreign exchange risk arising from various currency exposures primarily with respect to the Thai baht. Although a majority of our total revenues is denominated in U.S. dollars, a substantial portion of our payroll plus certain other operating expenses are incurred and paid in Thai baht. The exchange rate between the Thai baht and the U.S. dollar has fluctuated substantially in recent years and may continue to fluctuate substantially in the future. We report our financial results in U.S. dollars and our results of operations have been and could in the future be negatively impacted if the Thai baht appreciates against the U.S. dollar. Smaller portions of our expenses are incurred in a variety of other currencies, including RMB, GBP, Canadian dollars, Euros, and Japanese yen, the appreciation of which may also negatively impact our financial results.

In order to manage the risks arising from fluctuations in foreign currency exchange rates, we use derivative instruments. We may enter into exchange currency forward or put option contracts to manage foreign currency exposures associated with certain assets and liabilities and other forecasted foreign currency transactions and may designate these instruments as hedging instruments. The forward and put option contracts generally have maturities of up to 12 months. All foreign currency exchange contracts are recognized in the audited consolidated balance sheet as other current assets or other current liabilities and are measured at fair value. Gain or loss on our forward and put option contracts generally offset the assets, liabilities, and transactions economically hedged.

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We had foreign currency denominated assets and liabilities in Thai baht, RMB and GBP as follows:

The Thai baht assets represent cash and cash equivalents, trade accounts receivable, deposits and other current assets. The Thai baht liabilities represent trade accounts payable, accrued expenses, income tax payable and other payables. The Company manages its exposure to fluctuations in foreign exchange rates by the use of foreign currency contracts and offsetting assets and liabilities denominated in the same currency in accordance with management’s policy. As of June 29, 2018 there were $7.0 million of foreign currency forward contracts and $30.0 million of foreign currency option contracts outstanding on the Thai baht payables. As of June 30, 2017, there was $1.0 million in foreign currency forward contracts outstanding on the Thai baht payables.

The RMB assets represent cash and cash equivalents, trade accounts receivable, and other current assets. The RMB liabilities represent trade accounts payable, accrued expenses, and other payables. As of June 29, 2018 and June 30, 2017, we did not have any derivative contracts denominated in RMB.

The GBP assets represent cash, trade accounts receivable, inventory, and property, plant and equipment. The GBP liabilities primarily represent trade accounts payable. As of June 29, 2018 and June 30, 2017, we did not have any derivative contracts denominated in GBP.

For fiscal year 2018 and fiscal year 2017, we recorded realized loss of $0.4 million and realized gain of $0.3 million, respectively, related to derivatives that are not designated as hedging instruments in the consolidated statements of operations and comprehensive income.

Currency Regulation and Dividend Distribution

Foreign exchange regulation in the PRC is primarily governed by the following rules:

Under the Exchange Rules, RMB is freely convertible into foreign currencies for current account items, including the distribution of dividends, interest payments, trade and service-related foreign exchange transactions. However, conversion of RMB for capital account items, such as direct investments, loans, security investments and repatriation of investments, is still subject to the approval of SAFE.

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Under the Administration Rules, foreign-invested enterprises may only buy, sell, or remit foreign currencies at banks authorized to conduct foreign exchange business after providing valid commercial documents and relevant supporting documents and, in the case of capital account item transactions, obtaining approval from SAFE. Capital investments by foreign-invested enterprises outside of the PRC are also subject to limitations, which include approvals by the Ministry of Commerce, SAFE and the State Development and Reform Commission.

Circular 142 regulates the conversion by a foreign-invested company of foreign currency into RMB by restricting how the converted RMB may be used. Circular 142 requires that the registered capital of a foreign-invested enterprise settled in RMB converted from foreign currencies may only be used for purposes within the business scope approved by the applicable governmental authority and may not be used for equity investments within the PRC. In addition, SAFE strengthened its oversight of the flow and use of the registered capital of foreign-invested enterprises settled in RMB converted from foreign currencies. The use of such RMB capital may not be changed without SAFE’s approval and may not be used to repay RMB loans if the proceeds of such loans have not been used.

On January 5, 2007, SAFE promulgated the Detailed Rules for Implementing the Measures for the Administration on Individual Foreign Exchange, or the Implementation Rules. Under the Implementation Rules, PRC citizens who are granted share options by an overseas publicly-listed company are required, through a PRC agent or PRC subsidiary of such overseas publicly-listed company, to register with SAFE and complete certain other procedures.

In addition, the General Administration of Taxation has issued circulars concerning employee share options. Under these circulars, our employees working in the PRC who exercise share options will be subject to PRC individual income tax. Our PRC subsidiary has obligations to file documents related to employee share options with relevant tax authorities and withhold individual income taxes of those employees who exercise their share options.

Furthermore, our transfer of funds to our subsidiaries in Thailand and the PRC are each subject to approval by governmental authorities in case of an increase in registered capital, or subject to registration with governmental authorities in case of a shareholder loan. These limitations on the flow of funds between our subsidiaries and us could restrict our ability to act in response to changing market conditions.

Income Tax

Our effective tax rate is a function of the mix of tax rates in the various jurisdictions in which we do business. We are domiciled in the Cayman Islands. Under the current laws of the Cayman Islands, we are not subject to tax in the Cayman Islands on income or capital gains. We have received this undertaking for a 20-year period ending August 24, 2019. As that date approaches, we intend to request a renewal with the office of the Clerk of the Cabinet for another 20 years.

Throughout the period of our operations in Thailand, we have generally received income tax and other incentives from the Thailand Board of Investment. Preferential tax treatment from the Thai government in the form of a corporate tax exemption is currently available to us through June 2020 and June 2026 on income generated from projects to manufacture certain products at our Pinehurst campus and Chonburi campus, respectively. Such preferential tax treatment is contingent on various factors, including the export of our customers’ products out of Thailand and our agreement not to move our manufacturing facilities out of our current province in Thailand for at least 15 years from the date on which preferential tax treatment was granted (i.e., at least in the case of our Pinehurst campus and until June 2026 in the case of our Chonburi campus). In March 2016, the Thailand Revenue Department announced a permanent decrease of corporate income tax rates to 20% for tax periods beginning on or after January 1, 2016. As a result, corporate income tax rates for our Thai subsidiary are expected to remain at 20% from fiscal year 2017 onward.

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As of June 30, 2017, we determined that it was more likely than not that deferred tax assets attributable to a subsidiary in the United States would not be realized, primarily due to uncertainties related to the subsidiary’s ability to utilize its net operating loss carryforwards before they expire. Accordingly, we established a valuation allowance for all deferred tax assets. If there is a change in our ability to realize deferred tax assets for which a valuation allowance has been established, then our tax provision may decrease in the period in which we determine that realization is more likely than not. Likewise, if we determine that it is not more likely than not that our deferred tax assets will be realized, then a valuation allowance may be established for such deferred tax assets and our tax provision may increase in the period in which we make the determination. During fiscal year 2018, the subsidiary in the United States generated taxable income sufficient for the utilization of loss carryforwards due to better operating performance and effective control of operating expenses and management determined that it is more likely than not that future taxable income would be sufficient to allow the benefit of the loss to be realized. Therefore, as of June 29, 2018, we partially reversed the deferred tax assets valuation allowance.

The Tax Cuts and Jobs Act, or the Tax Reform Act, was enacted on December 22, 2017 and provides for significant changes to U.S. tax law. Among other provisions, the Tax Reform Act reduces the U.S. corporate income tax rate to 21% effective in 2018. The Tax Reform Act also contains a number of provisions that may impact us in future years. Since the Tax Reform Act was recently finalized and ongoing guidance and accounting interpretation is expected over the next twelve months, we have made certain provisional accounting estimates, as permitted under Staff Accounting Bulletin No. 118, and continue to analyze our accounting policies in this area. The U.S. Treasury Department, the IRS, and other standard-setting bodies could interpret or issue guidance on how provisions of the Tax Reform Act will be applied or otherwise administered that is different from our interpretation. As we complete our analysis of the Tax Reform Act, collect and prepare necessary data, and interpret any additional guidance, we may make adjustments to provisional amounts that we have recorded that may be material in the period in which the adjustments are made. The final accounting analysis will occur no later than one year from the date the Tax Reform Act was enacted.

As a result of the reduction in the corporate rate, we have remeasured our U.S. deferred tax assets and liabilities as of June 29, 2018 to reflect the lower rate expected to apply when these temporary differences reverse. We provisionally estimate that the remeasurement resulted in a reduction in current income tax expenses of $0.1 million and deferred tax assets of $0.4 million. While we are able to make reasonable estimates of the impact of the reduction in corporate rate, the final impact of the Tax Reform Act may differ from these estimates, due to, among other things, changes in our interpretations and assumptions, additional guidance that may be issued by the I.R.S., and actions we may take.

Critical Accounting Policies and Use of Estimates

We prepare our consolidated financial statements in conformity with U.S. GAAP, which requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities on the date of the consolidated financial statements and the reported amounts of revenues and expenses during the financial reporting period. We continually evaluate these estimates and assumptions based on the most recently available information, our own historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Because the use of estimates is an integral component of the financial reporting process, actual results could differ from those estimates. Some of our accounting policies require higher degrees of judgment than others in their application. We consider the policies discussed below to be critical to an understanding of our consolidated financial statements, as their application places the most significant demands on our management’s judgment.

A quantitative sensitivity analysis is provided where such information is reasonably available, can be reliably estimated, and provides material information to investors. The amounts used to assess sensitivity are included for illustrative purposes only and do not represent management’s predictions of variability.

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Revenue Recognition

We recognize revenue when it is realized or realizable and earned. We consider revenue realized or realizable and earned when there is persuasive evidence of an arrangement, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. Delivery does not occur until products have been shipped or services have been provided, risk of loss has transferred and in cases where formal acceptance is required, customer acceptance has been obtained or customer acceptance provisions have lapsed. In situations where a formal acceptance is required but the acceptance only relates to whether the product meets its published specifications, revenue is recognized upon shipment provided all other revenue recognition criteria are met. The sales price is not considered to be fixed or determinable until all contingencies related to the sale have been resolved.

We reduce revenue for rebates and other similar allowances. Revenue is recognized only if these estimates can be reliably determined. Our estimates are based on historical results taking into consideration the type of customer, the type of transaction, and the specifics of each arrangement.

In addition to the aforementioned general policies, certain customers may request us to store finished products purchased by them at the Company’s warehouse. In these instances, we receive a written request from the customer asking us to hold the inventory at our warehouse and the ordered goods are segregated in our warehouse from other inventory and cannot be used to fulfil other customer orders. In these situations, revenue is only recognized when persuasive evidence of the sales arrangement exists, the goods are completed and ready for shipment, pricing is fixed or determinable, collection is reasonable assured, and title and risk of loss have passed to the customer.

For information regarding the expected impact of the adoption of Accounting Standards Update 2014-09, “Revenue from Contracts with Customers (Topic 606)”, see Note 2 of our audited consolidated financial statements included in Part II, Item 8, “Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

Long-Lived Assets

We review property, plant and equipment for impairment when events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. An impairment loss is recognized when the carrying amount of a long-lived asset or assets group exceeds its fair value. Recoverability of property and equipment is measured by comparing its carrying amount to the projected undiscounted cash flows the property and equipment are expected to generate. If such assets are considered to be impaired, the impairment loss recognized, if any, is the amount by which the carrying amount of the property and equipment exceeds its fair value.

Allowance for Doubtful Accounts

We perform ongoing credit evaluations of our customers’ financial condition and make provisions for doubtful accounts based on the outcomes of these credit evaluations. We evaluate the collectability of our accounts receivable based on specific customer circumstances, current economic trends, historical experience with collections, and the age of past due receivables. Unanticipated changes in the liquidity or financial position of our customers may require additional provisions for doubtful accounts. Under our specific identification method, it is not practical to assess the sensitivity of our estimates.

Inventory Valuation

Our inventory is stated at the lower of cost (on a first-in, first-out basis) or market value. Our industry is characterized by rapid technological change, short-term customer commitments, and rapid changes in demand.

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We make provisions for estimated excess and obsolete inventory based on regular reviews of inventory quantities on hand and the latest forecasts of product demand and production requirements from our customers. If actual market conditions or our customers’ product demands are less favorable than those projected, additional provisions may be required. In addition, unanticipated changes in liquidity or the financial positions of our customers or changes in economic conditions may require additional provisions for inventory due to our customers’ inability to fulfill their contractual obligations. During fiscal year 2018 and fiscal year 2017, a change of 10% for excess and obsolete materials, based on product demand and production requirements from our customers, would have affected our net income by approximately $0.3 million and $0.3 million, respectively.

Deferred Income Taxes

Our deferred income tax assets represent temporary differences between the carrying amount and the tax basis of existing assets and liabilities that will result in deductible and payable amounts in future years, including net operating loss carry forwards. Based on estimates, the carrying value of our net deferred tax assets assumes that it is more likely than not that we will be able to generate sufficient future taxable income in certain tax jurisdictions to realize these deferred income tax assets. Our judgments regarding future profitability may change owing to future market conditions, changes in U.S. or international tax laws, or other factors. If these estimates and related assumptions change in the future, we may be required to increase or decrease our valuation allowance against the deferred tax assets, resulting in additional or lesser income tax expense. As of June 30, 2017, we determined that it was more likely than not that deferred tax assets attributable to a subsidiary in the United States would not be realized, primarily due to uncertainties related to the subsidiary’s ability to utilize its operating loss carryforwards before they expire. As of June 30, 2017, we assessed all of our deferred tax assets as more likely than not to be realizable and, accordingly, recognized a valuation allowance for deferred tax assets of $6.4 million. During fiscal year 2018, this subsidiary generated taxable income sufficient for the utilization of loss carryforwards due to better operating performance and effective control of operating expenses such that it is now more likely than not that future taxable income would be sufficient to allow the benefit of the loss to be realized. Therefore, as of June 29, 2018, we partially reversed the deferred tax assets valuation allowance.

We assess tax positions in a previously filed tax return or a position expected to be taken in a future tax return that is reflected in measuring current or deferred income tax assets and liabilities for interim or annual periods, based on the technical merits of the position. We apply a “more likely than not” basis (i.e., a likelihood greater than 50 percent), in accordance with the authoritative guidance, and recognize a tax provision in the consolidated financial statements for an uncertain tax position that would not be sustained.

Share-Based Compensation

Awards granted, including share options, restricted share units and performance share units are accounted for by recognizing the cost of employee services received in exchange for awards of equity instruments, based on the fair value of those awards, in the consolidated financial statements over the requisite service period.

In determining the fair value of share option awards, we are required to make estimates of expected dividends to be issued, expected volatility of our shares, expected forfeitures of the awards, risk free interest rates for the expected terms of the awards and expected terms of the awards.

For accounting purposes only, the fair value of each option grant is estimated using the Black-Scholes-Merton option pricing model, which takes into account the following factors: (1) the exercise price of the options; (2) the fair value of the underlying ordinary shares; (3) the expected life of the options; (4) the expected volatility of the underlying ordinary shares; (5) the risk-free interest rate during the expected life of the options; and (6) the expected dividend yield of the underlying ordinary shares. However, these fair values are inherently uncertain and highly subjective.

The exercise price of the options is stated in the option agreements. The expected life of the options involves estimates of the anticipated timing of the exercise of the vested options. The expected volatility is based

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on the historical volatility of our share price. We have applied the U.S. Treasury Bill interest rate with a maturity date similar to the expected life of our options as the risk-free interest rate and assumed a dividend yield for periods when we paid dividends.

The fair value of restricted share units and performance share units are based on the market value of our ordinary shares on the date of grant.

The determination of our share-based compensation expense for both current and future periods requires the input of assumptions, including estimated forfeitures and the price volatility of the underlying ordinary shares. We estimate forfeitures based on past employee retention rates and our expectations of future retention rates, and we will prospectively revise our forfeiture rates based on actual history. Our share-based compensation expense may change based on changes to our actual forfeitures.

Intangibles

Intangibles are stated at historical cost less amortization. Amortization of customer relationships is calculated using the accelerated method as to reflect the pattern in which the economic benefits of the intangible assets are consumed. Amortization of other intangibles is calculated using the straight-line method.

Business acquisition

For the acquisition of Fabrinet UK, we allocated the fair value of purchase consideration to the assets acquired and liabilities assumed based on their fair values at the acquisition date. The allocation of consideration to the individual net assets has been finalized.

The acquired intangible assets, which consist of customer relationships and backlog, are recorded as intangibles in the consolidated balance sheets. The fair value of the acquired intangible assets was determined based on the multi-period excess earnings method. We review intangibles for impairment whenever changes or circumstances indicate the carrying amount may not be recoverable.

Goodwill

Goodwill arising from the acquisition is primarily attributable to the ability to expand future products and services and the assembled workforce. Goodwill is reviewed annually for impairment or more frequently whenever changes or circumstances indicate the carrying amount of goodwill may not be recoverable.

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Results of Operations

The following table sets forth a summary of our consolidated statements of operations and comprehensive income. Note that period-to-period comparisons of operating results should not be relied upon as indicative of future performance.

The following table sets forth a summary of our consolidated statements of operations and comprehensive income as a percentage of total revenues for the periods indicated.