Sixth Supplemental Indenture, dated as of January 31, 2017, to the Indenture, dated August 20, 2012 among Tronox Finance LLC, as Issuer, Tronox Limited as Parent, the guarantors named therein and Wilmington Trust, National Association, as trustee

THIS SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2017, is by and among Tronox UK Holdings Limited (the “Guaranteeing Subsidiary”), a private company organized in England and Wales and a subsidiary of Tronox Limited, a public limited company organized under the laws of Western Australia, Australia (the “Parent”), Tronox Finance LLC, a Delaware limited liability company (the “Issuer”), the Parent, the Guarantors (as defined in the Indenture referred to herein) and Wilmington Trust, National Association, as trustee under the Indenture referred to below (the “Trustee”).

WHEREAS, the Issuer, the Parent and the Guarantors have heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of August 20, 2012, providing for the issuance of 6.375% Senior Notes due 2020 (the “Notes”);

WHEREAS, the Issuer, the Parent and the Guarantors have heretofore executed and delivered to the Trustee a First Supplemental Indenture to the Indenture, dated as of August 29, 2012, a Second Supplemental Indenture to the Indenture, dated as of May 7, 2013, a Third Supplemental Indenture to the Indenture, dated as of August 2, 2013, a Fourth Supplemental Indenture to the Indenture, dated as of August 19, 2013 and a Fifth Supplemental Indenture to the Indenture, dated as of April 1, 2015;

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the 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”);

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture, without the consent of Holders.

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

3.      NO RECOURSE AGAINST OTHERS. No director, officer, employee, incorporator, stockholder, partner or member of the Issuer, the Parent or any Guarantor, as such, will have any liability for any obligations of the Issuer, the Parent or the Guarantors under the Notes, the Indenture, this Supplemental 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.