UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

FABRINET

(Exact name of the registrant as specified in its charter)

c/o Intertrust Corporate Services (Cayman) Limited

190 Elgin Avenue

George Town

Grand Cayman

KY1-9005

Cayman Islands

(Address of principal executive offices)

Toh-Seng Ng

Chief Financial Officer

+66 2-524-9600

(Name and telephone number, including area code, of the

person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

Section 1 – Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

A copy of the Conflict Minerals Report of Fabrinet (“Fabrinet” or the “Company”) is filed as Exhibit 1.01 hereto and is publicly available at http://fabrinet.com/services/supply-chain.

The full text of Fabrinet’s Conflict Minerals Sourcing Policy is publicly available at https://fabrinet.com/wp-content/uploads/2015/11/FN-Conflict-Minerals-Sourcing-Policy-01.01.19.pdf.

Any websites referenced in this Form SD and the information accessible through them are not incorporated in this Form SD.

Item 1.02 Exhibit

The Conflict Minerals Report required by Item 1.01 is filed as Exhibit 1.01 to this Form SD.

Section 2 – Exhibits

Item 2.01 Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

Exhibit 1.01

FABRINET

CONFLICT MINERALS REPORT

YEAR ENDED DECEMBER 31, 2018

I.    Introduction

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 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, advanced packaging, integration, final assembly and test. Certain products that we manufacture for our customers contain materials or components that use tin, tantalum, tungsten and/or gold (“3TG”). Due to the depth of the supply chain, we are far removed from the sources of ore from which these metals are produced and the smelters/refiners that process those ores. The efforts we undertook to identify the country(ies) of origin of those minerals reflect our circumstances and position in the supply chain. The amount of information available globally on the traceability and sourcing of these ores is limited at this time, and this situation is not unique to us. We have taken steps we believe reasonable under the circumstances to identify the applicable smelters and refiners of such 3TG metals in our supply chain; however, we believe the smelters and refiners of the 3TG contained in the products we manufacture for our customers are best situated to identify the sources and countries of origin of the 3TG.

We do not directly manufacture products but “contract to manufacture” branded and generic products containing 3TG on behalf of our customers. Our due diligence efforts were undertaken on the exclusive and/or privately-branded products sourced directly by and manufactured for us in 2018.

II.    Reasonable Country of Origin Inquiry (RCOI)

Direct suppliers were asked to provide answers to the Responsible Business Alliance (formerly known as the Electronic Industry Citizenship Coalition) (“RBA”) / Global e-Sustainability Initiative (GeSI) Conflict Minerals Common Reporting Template reflecting Fabrinet’s position in the supply chain (the “CMRT”). The CMRT includes questions regarding a direct supplier’s conflict-free policy, its due diligence process, and information about its supply chain such as the names and locations of smelters and refiners and the origin of 3TG used by those facilities. The CMRT is regarded as the most common reporting tool for conflict minerals content and sourcing information worldwide, developed by several of the world’s leading consumer electronics companies.

Utilizing a third-party service provider to assist with our RCOI, our service provider reviewed the responses received to the questionnaires for completeness and consistency of answers. Suppliers were required to provide corrections and clarifications where needed. Our service provider also performed smelter/refiner validation based on the names of the provided smelter/refiner. Based on the RCOI, we do not have sufficient information from our direct suppliers to determine the sources of the necessary 3TG contained in the products we manufacture for our customers.

We believe our RCOI process was reasonably designed and performed in good faith, but there are inherent limitations in the information provided to us by third parties, including the possibility of information being inaccurate, incomplete or falsified despite our efforts to validate and confirm the information.

III.    Due Diligence Program

We designed our overall conflict minerals procedures based on, and in conformity with the five-step framework of set forth in the Second Edition of the Organisation for Economic Co-operation and Development’s Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas. We implemented appropriate elements of the five-step framework as were reasonably applied to our circumstances and position in the supply chain as a “downstream” company with little to no direct influence on smelters/refiners. The five-step framework consists of:

(1) Establish strong company management systems:

(2) Identify and assess risks in the supply chain:

(3) Design and implement a strategy to respond to identified risks:

(4) Carry out independent third-party audit of supply chain due diligence at identified points in the supply chain:

(5) Report on supply chain due diligence:

IV.    Product Determination

We received inconclusive data from our direct suppliers, and our material source information is still developing. Therefore, we are unable to make a definitive determination about the sources of 3TG in the products we manufacture for our customers. At the same time, we received no information from our direct suppliers indicating that the 3TG in our Covered Products (as defined below) directly or indirectly financed or benefitted armed groups in the Democratic Republic of the Congo and the adjoining countries of Angola, Burundi, the Central African Republic, the Republic of the Congo, Rwanda, South Sudan, Tanzania, Uganda and Zambia. Some suppliers disclosed to us that scrap/recycled sources of 3TG were identified in their supply chains and did not require due diligence.

V.    Product Description

Our customer base includes companies in complex industries that require advanced precision manufacturing capabilities, such as optical communications, industrial lasers 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 (collectively, the “Covered Products”).

We identified the following smelters and refiners that have achieved Conflict Free designation by the RMI or an audit program with which RMI has mutual recognition, are actively in the process of obtaining the designations, or for which we independently obtained country of origin information. We were unable to definitively link the identified smelters and refiners to only those products and materials in our supply chain; therefore, the following list likely contains more processing facilities than are actually in our supply chain or Covered Products.

VI.    Countries of Origin Identified

Andorra, Australia, Austria, Belgium, Bolivia, Brazil, Canada, Chile, China, Czech Republic, Estonia, France, Germany, India, Indonesia, Italy, Japan, Kazakhstan, Korea (Republic of), Kyrgyzstan, Lithuania, Macedonia, Malaysia, Mexico, Netherlands, New Zealand, Peru, Philippines, Poland, Russian Federation, Saudi Arabia, Singapore, South Africa, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey, United Arab Emirates, Uganda, United States, Uzbekistan, Vietnam, Zambia, Zimbabwe. Covered Countries were identified only for RMI audited facilities.

VII.    Steps to Improve Due Diligence

We will continue to communicate our expectations and information requirements to our direct suppliers. We will also continue to monitor changes in circumstances that may impact the facts or our determination. Over time, we anticipate that the amount of information globally on the traceability and sourcing of these minerals will increase and improve our knowledge. We will continue to make inquiries to our direct suppliers and undertake additional fact and risk assessments where potentially relevant changes in facts or circumstances are identified. New product will be reviewed for conflict minerals conformance during initial qualification. If we become aware of a supplier whose due diligence needs improvement, we intend to continue the trade relationship while that supplier improves its performance. We expect our suppliers to take similar measures with their suppliers to ensure alignment throughout the supply chain.

VIII.    Independent Private Sector Audit

Not required for calendar year 2018.