EXHIBIT 4.1

TRONOX FINANCE PLC

AND EACH OF THE GUARANTORS PARTY HERETO

5.750% SENIOR NOTES DUE 2025

THIRD SUPPLEMENTAL INDENTURE

Dated as of August 30, 2019

Wilmington Trust, National Association,

as Trustee

Third Supplemental Indenture (this “Supplemental Indenture”), dated as of August 30, 2019, among those entities listed in Annex A hereto (each, a “Guaranteeing Subsidiary” and collectively, the “Guaranteeing Subsidiaries”), each an affiliate of Tronox Limited (or its permitted successor) (“Holdings”), Tronox Finance plc, a public limited company incorporated under the laws of England and Wales (the “Issuer”), the other Guarantors (as defined in the Indenture referred to herein) and Wilmington Trust, National Association, a national banking association, as trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Issuer has heretofore executed and delivered to the Trustee an indenture dated as of September 22, 2017 (the “Base Indenture”), among the Issuer, the Guarantors party thereto (as defined therein) and the Trustee, providing for the issuance of 5.750% Senior Notes due 2025 (the “Notes”);

WHEREAS, the Issuer has heretofore executed and delivered to the Trustee a first supplemental indenture, dated as of April 1, 2019 (the “First Supplemental Indenture”), among Tronox Holdings PLC, Tronox Investment Holdings Limited and Tronox UK Merger Company Limited, as new guarantors, the Issuer, the other Guarantors party thereto (as defined therein) and the Trustee, to accede certain new guarantors under the Notes;

WHEREAS, the Issuer has heretofore executed and delivered to the Trustee a second supplemental indenture, dated as of April 12, 2019 (the “Second Supplemental Indenture”), among Cristal Inorganic Chemicals Netherlands B.V. and Cristal International B.V., as new guarantors, the Issuer, the other Guarantors party thereto (as defined therein) and the Trustee, to accede certain new guarantors under the Notes (the Base Indenture, as supplemented by each of the First Supplemental Indenture and the Second Supplemental indenture, herein referred to as the “Indenture”);

WHEREAS, the Indenture provides that under certain circumstances each Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which each such Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuer’s obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, each Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

1.          Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2.          Agreement to Guarantee. Each Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Note Guarantee and in the Indenture including but not limited to Article 10 thereof.

3.         No Recourse Against Others. No director, manager, officer, employee, incorporator, stockholder or member of Holdings, the Issuer or any Subsidiary thereof will have any liability for any obligations of Holdings, the Issuer or the Guarantors under the Notes, this Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

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4.          Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

5.          Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy will be an original, but all of them together represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

6.          Effect of Headings. The Section headings herein are for convenience of reference only, are not to be considered a part of this Supplemental Indenture and will in no way modify or restrict any of the terms or provisions hereof.

7.         The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiaries, Holdings and the Issuer.

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed and attested, all as of the date first above written.

Dated: August 30, 2019

	Tronox Finance plc
	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Director

[Signature Page to Third Supplemental Indenture (2025)]

U.S. GUARANTORS:

Tronox Incorporated

Tronox LLC

Tronox Pigments LLC

Tronox US Holdings Inc.

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Vice President and Assistant Secretary

Tronox Finance LLC

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Assistant Secretary

[Signature Page to Third Supplemental Indenture (2025)]

U.K. GUARANTORS:

Tronox UK Holdings Limited

Tronox UK Limited

Tronox UK Merger Company Limited

Tronox Investment Holdings Limited

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Director

Tronox Holdings PLC, under power of attorney

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Attorney

Tronox International Finance LLP

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Representative Member of Tronox UK Holdings

[Signature Page to Third Supplemental Indenture (2025)]

AUSTRALIAN GUARANTORS:

SIGNED, SEALED and DELIVERED for each of

TRONOX AUSTRALIA HOLDINGS PTY LIMITED

TRONOX AUSTRALIA PIGMENTS HOLDINGS PTY LTD

TRONOX GLOBAL HOLDINGS PTY LIMITED

TRONOX PIGMENTS AUSTRALIA HOLDINGS PTY LTD

TRONOX PIGMENTS AUSTRALIA PTY LTD

TRONOX SANDS HOLDINGS PTY LIMITED

TRONOX HOLDINGS (AUSTRALIA) PTY LTD

TRONOX AUSTRALIA PTY LTD

TIO2 CORPORATION PTY LTD

YALGOO MINERALS PTY. LTD.

TIFIC PTY. LTD.

TRONOX MINERAL SALES PTY LTD

TRONOX MANAGEMENT PTY LTD

TRONOX WESTERN AUSTRALIA PTY LTD

TRONOX WORLDWIDE PTY LIMITED

under power of attorney in the presence of:

		/s/ Steven A. Kaye
		Signature of attorney
/s/ Julie A. Constantinides		Steven A. Kaye
Signature of witness		Name
Julie A. Constantinides		15 September 2017
Name		Date of power of attorney

SIGNED, SEALED and DELIVERED for TRONOX LIMITED under power of attorney in the presence of:		/s/ Steven A. Kaye
		Signature of attorney
/s/ Julie A. Constantinides		Steven A. Kaye
Signature of witness		Name
Julie A. Constantinides		15 September 2017
Name		Date of power of attorney

[Signature Page to Third Supplemental Indenture (2025)]

DUTCH GUARANTORS:

Tronox Holdings Coöperatief U.A.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Director A

	By:	/s/ Anthony Martin Orrell
		Name:	Anthony Martin Orrell
		Title:	Director B

Tronox Worldwide Pty Limited, acting for itself, on behalf of Tronox Global holdings Pty Ltd as limited partner of Tronox Holdings Europe C.V., and in its capacity as general partner of Tronox Holdings Europe C.V.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Authorized Signatory

Tronox Pigments (Netherlands) B.V.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Managing Director

Tronox Pigments (Holland) B.V.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Managing Director

Cristal Inorganic Chemicals Netherlands B.V.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Manager

Tronox International B.V.

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Manager

[Signature Page to Third Supplemental Indenture (2025)]

SWITZERLAND GUARANTORS:

Tronox International Holdings GmbH

	By:	/s/ Steven A. Kaye
		Name:	Steven A. Kaye
		Title:	Chairman of Management Board

[Signature Page to Third Supplemental Indenture (2025)]

Cristal Inorganic Chemicals UK Limited

Tronox Investments UK Limited

Millennium Inorganic Chemicals UK Holdings Limited

By: /s/ Steven A. Kaye

	Name:	Steven A. Kaye
	Title:	Director

[Signature Page to Third Supplemental Indenture (2025)]

Signed, sealed and delivered by

as attorney, respectively, for

BEMAX SALES PTY LTD

101858931

CABLE SANDS (W.A.) PTY LTD

009137142

CABLE SANDS HOLDINGS PTY. LIMITED

001288268

CABLE SANDS INVESTMENTS PTY. LIMITED

000430482

CABLE SANDS PTY. LIMITED

008678386

TRONOX AUSTRALIND PTY LTD

125123784

COFFS HARBOUR RUTILE PTY LTD

000173099

TRONOX MINERAL HOLDINGS AUSTRALIA PTY LTD

102888559

TRONOX MINING AUSTRALIA LIMITED

009247858

TRONOX PIGMENT BUNBURY LTD

008683627

IMPERIAL MINING (AUST) PTY LTD

062193266

KATHLEEN INVESTMENTS (AUSTRALIA) PTY LTD

008402891

MURRAY BASIN TITANIUM PTY LTD

082497827

NIMSA MURRAY BASIN PTY LTD

091051704

NISSHO IWAI MINERAL SANDS (AUSTRALIA) PTY. LIMITED

003870871

PEREGRINE GOLD MINING PTY LTD

009267207

[Signature Page to Third Supplemental Indenture (2025)]

PEREGRINE MINERAL SANDS PTY LTD

009307591

POONCARIE OPERATIONS PTY LTD

102895581

PROBO MINING PTY LTD

079938819

RUTILE & ZIRCON MINES (NEWCASTLE) PTY LTD

000393135

RZM PTY. LIMITED

001 242 397

TITANIUM TECHNOLOGY (AUSTRALIA) PTY LTD

000833643

under power of attorney dated August 30, 2019 in the presence of:

/s/ Julie A. Constantinides	←	/s/ Steven A. Kaye
Signature of witness		Signature of attorney
		The person signing above certifies that his/her signature is to be treated as constituting a separate signing as attorney for each party listed above respectively.
Julie A. Constantinides	←	Steven A. Kaye
Name of witness (print)		Name of attorney (print)

[Signature Page to Third Supplemental Indenture (2025)]

TRONOX FRANCE SAS, a société par actions simplifiée, incorporated under the laws of France with Mulhouse RCS number 440 140 309

By: /s/ Christian Wendling

		Name:	Christian Wendling
		Title:	Director

MILLENNIUM INORGANIC CHEMICALS LE HAVRE SAS, a société par actions simplifiée, incorporated under the laws of France with Le Havre RCS number 440 097 079

By: /s/ Christian Wendling

		Name:	Christian Wendling
		Title:	Director

MILLENNIUM INORGANIC CHEMICALS SAS, a société par actions simplifiée, incorporated under the laws of France with Mulhouse RCS number 945 550 119

By: /s/ Christian Wendling

		Name:	Christian Wendling
		Title:	Director

[Signature Page to Third Supplemental Indenture (2025)]

Wilmington Trust, National Association, as Trustee

By: /s/ Jane Y. Schweiger

		Name:	Jane Y. Schweiger
		Title:	Vice President

[Signature Page to Third Supplemental Indenture (2025)]

ANNEX A

GUARANTEEING SUBSIDIARIES

Cristal Inorganic Chemicals UK Limited

Tronox Investments UK Limited

Millennium Inorganic Chemicals UK Holdings Limited

Bemax Sales Pty Ltd

Cable Sands (W.A.) Pty Ltd

Cable Sands Holdings Pty. Limited

Cable Sands Investments Pty. Limited

Cable Sands Pty. Limited

Tronox Australind Pty Ltd

Coffs Harbour Rutile Pty Ltd

Tronox Mineral Holdings Australia Pty Ltd

Tronox Mining Australia Limited

Tronox Pigment Bunbury Ltd

Imperial Mining (Aust) Pty Ltd

Kathleen Investments (Australia) Pty Ltd

Murray Basin Titanium Pty Ltd

Nimsa Murray Basin Pty Ltd

Nissho Iwai Mineral Sands (Australia) Pty. Limited

Peregrine Gold Mining Pty Ltd

Peregrine Mineral Sands Pty Ltd

Pooncarie Operations Pty Ltd

Probo Mining Pty Ltd

Rutile & Zircon Mines (Newcastle) Pty Ltd

RZM Pty. Limited

Titanium Technology (Australia) Pty Ltd

Tronox France SAS

Millennium Inorganic Chemicals Le Havre SAS

Millennium Inorganic Chemicals SAS