UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM SD

SPECIALIZED DISCLOSURE REPORT

GARRETT MOTION INC.

(Exact Name of Registrant as Specified in its Charter)

La Pièce 16, Rolle, Switzerland 1180

(Full mailing address of principal executive offices)

Jerome Maironi

Senior Vice President, General Counsel and Corporate Secretary

+41 21 695 30 00

(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 Garrett Motion Inc.’s Conflict Minerals Report is provided as Exhibit 1.01 hereto and is publicly available at https://investors.garrettmotion.com/governance.

Item 1.02. Exhibit

The Conflict Minerals Report required by Item 1.01 is filed as an exhibit hereto.

Section 2 — Exhibits

Item 2.01. Exhibits

SIGNATURE

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 undersigned hereunto duly authorized.

Exhibit 1.01

Garrett Motion Inc.

Conflict Minerals Report

For the Year Ended December 31, 2018

This report for the year ended December 31, 2018 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (the “SEC”) to implement reporting and disclosure requirements related to conflict minerals as directed by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the “Dodd-Frank Act”). The Rule imposes certain reporting obligations on SEC registrants whose manufactured products contain conflict minerals which are necessary to the functionality or production of their products. Conflict Minerals are defined as cassiterite, columbite-tantalite, wolframite and gold, including their derivatives, which are limited to tin, tantalum and tungsten (“3TG”).

The information in this report relates to the products of Garrett Motion Inc. (hereafter “Garrett”), since the initial company launch on 1 October 2018 until December 2018.

Overview

Garrett’s Business

Garrett designs, manufactures and sells highly engineered turbocharger, electric-boosting and connected vehicle technologies for original equipment manufacturers (“OEMs”) and the aftermarket. We are a global technology leader with significant expertise in delivering products across gasoline, diesel, natural gas and electrified (hybrid and fuel cell) powertrains.

Our turbocharging and electric-boosting products enable our customers to improve vehicle performance while addressing continually evolving and converging regulations that mandate significant increases in fuel efficiency and reductions in exhaust emissions worldwide.

Garrett’s Products Covered by this Report

This report relates to Garrett products: (i) for which 3TG are necessary to the functionality or production of that product; (ii) that were manufactured, or contracted to be manufactured, by Garrett; and (iii) for which the manufacture was completed during calendar year 2018 (the “Covered Products”).

On the basis of a reasonable country of origin inquiry (“RCOI”) and due diligence measures described herein (including in the section titled “Due Diligence Results” below), as of this reporting period, Garrett does not have sufficient validated information from the Supplier Group (as defined below) to determine the facilities used to process, and the country of origin and the mine or location of origin of, 3TG used in any part or product supplied to us for use in the Covered Products, including whether such 3TG originated in the Democratic Republic of the Congo, the Republic of the Congo, the Central African Republic, South Sudan, Uganda, Rwanda, Burundi, Tanzania, Zambia and Angola (the “Covered Countries”).

Garrett’s Supply Chain

Garrett sells thousands of products containing parts from hundreds of direct and indirect suppliers. As a “downstream” company with many tiers in our supply chain, we generally do not have a direct relationship with 3TG smelters and refiners. It is difficult for us to identify actors upstream from our direct material suppliers, and we rely on our direct material suppliers to provide information on the smelters and refiners as well as the origin of 3TG contained in parts or products supplied to us, including sources of 3TG that are supplied to them from their upstream suppliers. These direct material suppliers similarly rely on information provided by their suppliers.

The terms and lengths of contracts with our suppliers are varied, and we cannot always unilaterally impose new contract terms. As we renew or enter into new purchase agreements with direct material suppliers, we are adding a 3TG compliance provision requiring such suppliers to conduct and document their inquiries into the smelters and refiners as well as the country of origin of 3TG in parts or products supplied to Garrett and to provide Garrett with information or representations that Garrett requires to meet its compliance obligations. Although we integrated a 3TG compliance provision into some purchase agreements with direct material suppliers, it will take several years to ensure that all direct material supplier purchase agreements contain appropriate 3TG compliance provisions. In addition, some suppliers may object to the inclusion of such 3TG compliance provisions. In the meantime, as described herein, we are working with our suppliers to ensure they provide 3TG sourcing information.

Reasonable Country of Origin Inquiry

Garrett conducted a good faith RCOI to determine whether the 3TG found in our products may have originated in the Covered Countries and did not come from recycled or scrap sources. The elements of the RCOI were:

Garrett assessed the direct material suppliers that were most likely to provide parts or products containing 3TG, and we sent over 600 surveys to relevant direct material suppliers.

Garrett used 2018 versions of the Responsible Minerals Initiative’s Conflict Minerals Reporting Template (the “Questionnaire”). The Questionnaire is designed to facilitate disclosure and communication of information regarding smelters and refiners of 3TG contained in parts or products in our supply chain. It includes questions regarding a supplier’s engagement with its direct suppliers and a listing of the smelters and refiners that the supplier and its suppliers use. In addition, the Questionnaire contains questions about the origin of 3TG included in a supplier’s parts or products, as well as supplier due diligence efforts. Garrett engaged a third party vendor (the “Vendor”) to deploy the Questionnaire to the Supplier Group via a tracking tool, which enables Garrett and the Vendor to manage and maintain records of responses from the Supplier Group in an electronic database.

We followed up with all unresponsive members of the Supplier Group through a defined process via both automated email and personalized email, including offering assistance and further information to the Supplier Group about the requirements of the Rule and the 3TG compliance program.

The 3TG compliance program includes automated data validation on all submitted Questionnaires via the Vendor’s software. The goal of data validation is to increase the accuracy of submissions and identify any contradictory answers in the Questionnaire. All submitted forms are accepted and classified as valid or invalid such that all data is retained. Members of the Supplier Group were contacted in regards to invalid forms and were encouraged to resubmit a valid form. We reviewed the responses to determine where further engagement with our Supplier Group was warranted.

Based on the responses received from the Company’s RCOI, which included thousands of alleged smelter or refiner (“SOR”) names, we compiled a list of unique SORs, including information regarding associated countries of origin. On the basis of the responses to our RCOI, Garrett has reason to believe it is possible that some 3TG necessary to the functionality or production of our parts or products may have originated in the Covered Countries. Accordingly, Garrett conducted further due diligence on the source and chain of custody of the 3TG contained in parts or products provided by the Supplier Group.

Due Diligence Process

Design of Due Diligence Measures

Our due diligence measures have been designed to conform, in all material respects, with the Organization for Economic Co-operation and Development’s “Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict- Affected and High-Risk Areas, Third Edition (2016)” and the related Supplements for 3TG (the “OECD Framework”). The OECD Framework is written for the entire mineral supply chain and our due diligence measures were tailored to include steps appropriate for “downstream” companies. Our due diligence included the following elements of the OECD Framework:

Due Diligence Performed

Step 1: Establish Strong Company Management Systems

Garrett has established a management system to determine the source and chain of custody of 3TG in our supply chain.

Step 2: Identify and Assess Risks in the Supply Chain

Distribution of Questionnaires to Supplier Group. In 2018, we distributed the Questionnaire to the Supplier Group in order to gather information on our supply chain, including (i) whether any of the minerals they supplied to Garrett may contain 3TG, (ii) whether any 3TG are necessary to the functionality or production of the parts or products in which they are used, and (iii) the smelters and refiners or any 3TG in our supply chain and whether the 3TG originated from the Covered Countries or came from recycled or scrap sources.

Assessment of Supplier Group Responses. We reviewed each response from the Supplier Group to assess the adequacy of such response. Members of the Supplier Group that failed to respond to the Questionnaire or that did not provide responses to all applicable questions in the Questionnaire received follow-up communications requesting additional information. If a supplier response indicates that 3TG contained in parts or products provided to Garrett may have originated from the Covered Countries, then such response is sent to the 3TG Compliance Team for further review and determination of follow-up steps, as below.

Step 3: Design and Implement a Strategy to Respond to Identified Risks

We have a risk management plan to address concerns that a supplier may be providing to Garrett products or parts that contain 3TG sourced from the Covered Countries. If a supplier indicates that its products may contain 3TG sourced from the Covered Countries, we will follow up with the supplier to gather more information, including the basis for the information provided and other information regarding the sourcing country and smelter. Identified risks will be reported to the 3TG Compliance Team, which will determine appropriate follow-up actions, if any, to mitigate risks. There have been no known instances of validated high risk issues in the supply chain that require follow-up actions to be considered.

To ensure that the Supplier Group understands our expectations with respect to compliance with the Rule, we distribute background information on the Rule and our Mission Statement, and we provide access to training materials on 3TG compliance to the Supplier Group in addition to the Questionnaire.

Step 4: Carry Out Independent Third-Party Audit of Supply Chain Due Diligence at Identified Points in the Supply Chain

Garrett relies on the RMI’s Responsible Minerals Assurance Process (“RMAP”), formerly the Conflict-Free Smelter Program, to perform third-party audits of smelters and refiners. We compared the SORs identified by the Supplier Group to the list of SORs certified as “compliant” or the equivalent by the RMI.

Step 5: Report on Supply Chain Due Diligence

This Conflict Minerals Report shall be filed with the SEC and is publicly available at: https://investors.garrettmotion.com/governance

Due Diligence Results

The Questionnaire sent to the Supplier Group requests that the Supplier Group provide Garrett with information on (a) the smelters and refiners that the Supplier Group and its suppliers use to supply the 3TG in the Covered Products, (b) whether the 3TG used in the Covered Products originates from the Covered Countries, and (c) the mine or location of origin of the 3TG used in the Covered Products. Garrett must rely on responses from the Supplier Group to our Questionnaire in order to determine the facilities used to process 3TG used in the Covered Products, whether the 3TG used in the Covered Products originates from the Covered Countries and the source of 3TG used in the Covered Products.

The responses that we have received as of this reporting period from the Supplier Group fall into one or more of the following categories (i) indication that no 3TG is used in parts or products that are provided to Garrett, (ii) data with respect to the supplier’s overall 3TG sourcing, without specifying whether such 3TG was used in parts or products provided to Garrett or indication that the supplier is unable to provide the information as it specifically relates to the parts or products that are provided to Garrett, (iii) indication that the supplier is unable to provide smelter or refiner information at this time, and/or (iv) indication that the supplier is unable to provide or is still in the process of determining the country of origin or mine or location of origin of 3TG from its suppliers. Accordingly, as of this reporting period, Garrett does not have sufficient validated information from the Supplier Group to determine the facilities used to process, and the country of origin and the mine or location of origin of, 3TG used in any part or product supplied to us for use in the Covered Products.

Steps to be taken to mitigate risk

We intend to take the following steps to improve the due diligence conducted and to further mitigate any future risk of sourcing 3TG that benefit armed groups:

Cautionary Statement about Forward-Looking Statements

This report contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are those that address activities, events or developments that we or our management intends, expects, projects, believes or anticipates will or may occur in the future. They are based on management’s assumptions and assessments in light of past experience and trends, current economic and industry conditions, expected future developments and other relevant factors. They are not guarantees of future performance, and actual results, developments and business decisions may differ significantly from those envisaged by our forward-looking statements. We do not undertake to update or revise any of our forward-looking statements. Our forward-looking statements are also subject to risks and uncertainties, which can affect our performance in both the near-and long-term. These forward-looking statements should be considered in light of the information included in this report and our other filings with the SEC, including, without limitation, the Risk Factors, as well as the description of trends and other factors in Management’s Discussion and Analysis of Financial Condition and Results of Operations, set forth in our Form 10-K for the year ended December 31, 2018 and other filings with the SEC.