As filed with the Securities and Exchange Commission on May 7, 2026

Registration No. 333-

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM S-8

REGISTRATION STATEMENT

Under The Securities Act of 1933

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TRONOX HOLDINGS PLC

(Exact name of registrant as specified in its charter)

(Address of Principal Executive Offices)

TRONOX HOLDINGS PLC

AMENDED AND RESTATED MANAGEMENT EQUITY INCENTIVE PLAN

(Full title of the plan)

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Jeffrey Neuman, Esq.

Senior Vice President, General Counsel and Secretary

Tronox Holdings PLC

263 Tresser Boulevard, Suite 1100

Stamford, Connecticut 06901

(Name and address of agent for service)

(203) 705-3800

(Telephone number, including area code, of agent for service)

Copies of all communications to:

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.

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 7(a)(2)(B) of the Securities Act. ☐

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EXPLANATORY NOTE

On April 28, 2026, at the Annual Meeting of Shareholders of Tronox Holdings plc (the “Registrant”), the Registrant’s shareholders approved an amendment (the “Amendment”) to the Tronox Holdings Amended and Restated Management Equity Incentive Plan (the “Plan”), which amended the Plan to increase the number of the Registrant’s ordinary shares, par value $0.01 per share (the “Ordinary Shares”), that may be issued under the Plan by 2,600,000 Ordinary Shares.

Pursuant to General Instruction E to Form S-8, the Registrant is filing this Registration Statement on Form S-8 (the “Registration Statement”) with the Securities and Exchange Commission (the “Commission”) to register, in connection with the Plan and pursuant to the Amendment, an additional 2,600,000 Ordinary Shares of the same class as registered under the Registrant’s Registration Statements on Form S-8 previously filed with the Commission on February 21, 2025 (File No. 333-285136), August 4, 2020 (File No. 333-240322), August 16, 2016 (File No. 333-213159) (as amended by the first post-effective amendment on Form S-8 filed with the Commission on March 28, 2019), and July 6, 2012 (File No. 333-182556) (collectively, the “Earlier Registration Statements”). The Earlier Registration Statements, where applicable, are incorporated by reference in their entirety in this Registration Statement, except as to the items set forth below in Part II.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

The rules of the Commission allow us to incorporate by reference information into this Registration Statement. The information incorporated by reference is considered to be a part of this Registration Statement, and information that we file later with the Commission will automatically update and supersede this information. This Registration Statement incorporates by reference the documents listed below.

All reports and other documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a post-effective amendment to this Registration Statement which indicates that all securities offered hereby have been sold or which deregisters all securities remaining unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of such reports and other documents. Except as provided in the last sentence of the first paragraph of the section of this Registration Statement entitled “Item 3. Incorporation of Documents by Reference”, nothing in this Registration Statement shall be deemed to incorporate any information provided in documents that is furnished (rather than filed) or is otherwise not deemed to be filed under applicable Commission rules.

EXHIBIT INDEX

‡Incorporated herein by reference

*Filed herewith.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement on Form S-8 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Stamford, State of Connecticut on May 7, 2026.

POWER OF ATTORNEY

In accordance with the requirements of the Securities Act, this Registration Statement has been signed by the following persons in the capacities and on the dates stated. Each person whose signature appears below constitutes and appoints John Romano, D. John Srivisal, Jeffrey N. Neuman and Steven Kaye and each of them severally, as his or her true and lawful attorney-in-fact and agent, each acting along with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any or all amendments (including post-effective amendments) and exhibits to the registration statement on Form S-8, and to any registration statement filed under Rule 462, and to file the same, with all exhibits thereto, and all documents in connection therewith, with the SEC, granting unto said attorney-in-fact and agent, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, this registration statement on Form S-8 has been signed by the following persons in the capacities indicated on May 7, 2026.

SIGNATURE OF AUTHORIZED U.S. REPRESENTATIVE OF THE REGISTRANT

Pursuant to the Securities Act, the undersigned, the duly authorized representative in the United States of Tronox Holdings plc, has signed this registration statement or amendment thereto on May 7, 2026.

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