Document


To:
The Directors			The Directors
Rio Tinto Finance (USA) Inc.			Rio Tinto Finance (USA) plc
4700 Daybreak Parkway			6 St. James’s Square
South Jordan			London SW1Y 4AD
Utah 84009			United Kingdom
United States of America
			The Directors
The Directors			Rio Tinto plc
Rio Tinto Finance (USA) Limited			6 St. James’s Square
Level 43, 120 Collins Street			London SW1Y 4AD
Melbourne			United Kingdom
Victoria 3000
Australia

The Directors
Rio Tinto Limited
Level 43, 120 Collins Street
Melbourne
Victoria 3000
Australia

1We have acted as English legal advisers to Rio Tinto Finance (USA) Inc., a company incorporated under the laws of the State of Delaware, United States of America, Rio Tinto Finance (USA) plc, a company incorporated under the laws of England, Rio Tinto Finance (USA) Limited, a company incorporated under the laws of the State of Victoria, Commonwealth of Australia (together with Rio Tinto Finance (USA) Inc. and Rio Tinto Finance (USA) plc, the “Issuers”), Rio Tinto plc, a company incorporated under the laws of England (“Rio Tinto plc”) and Rio Tinto Limited, a company incorporated under the laws of the State of Victoria, Commonwealth of Australia (“Rio Tinto Limited” and, together with Rio Tinto plc, the “Guarantors”), in connection with the automatic shelf registration statement on Form F-3 filed with the United States Securities and Exchange Commission on 5 May 2023 (the “Registration Statement”) relating to the registration under the United States Securities Act

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of 1933 (the “Act”) of (i) an indeterminate amount of the Issuers’ debt securities (the “Debt Securities”), which, if issued, will be unconditionally guaranteed as to payment of principal, premium, if any, and interest (the “Guarantees”) by each of the Guarantors and (ii) the Guarantees. The Debt Securities may be issued from time to time pursuant to the Indenture (as defined in the Schedule to this opinion). We have taken instructions solely from the Issuers and the Guarantors.

2This opinion is limited to English law as applied by the English courts in effect on the date of this opinion. It is given on the basis that it, and all matters relating to it, will be governed by, and that it (including all terms used in it) will be construed in accordance with, English law. In particular, we express no opinion on matters of federal law of the United States or Australia, the laws of any State of the United States or Australia or the laws of any other jurisdiction. We have not been asked to, and we do not, express any opinion as to any taxation matters. This opinion is also given on the basis that we undertake no responsibility to notify you of any change in English law or otherwise to update this opinion in any respect after the date of this opinion.

4.5the Minutes (as defined below) and other corporate documents are a true and complete record of the proceedings and/or resolutions described therein and there has been no modification of the Articles, and there was no modification of the Original Articles in force on the date of the Original Indenture or of the First Supplemental Articles in force on the date of the First Supplemental Indenture or of the Second Supplemental Articles in force on the date of the Second Supplemental Indenture, in each case examined by us and referred to in the Schedule to this opinion;

4.6the Meeting of the Chairman’s Committee of the Board of Directors of Rio Tinto plc held on 16 March 2012 (in respect of which extracts of the minutes (the “RTPLC Minutes”) have been supplied to us) and the Meetings of the Board of Directors of Rio Tinto plc held on 21 April 2004, 9 February 2010, 2 May 2017 and 6 April 2020 (in respect of which certified extracts of the minutes (together with the RTPLC Minutes, the “Guarantor Minutes”) have been supplied to us) were in each case duly convened, constituted and quorate and the resolutions referred to in the Guarantor Minutes were validly passed and remain in full force and effect without modification;

4.7the Meetings of the Board of Directors of Rio Tinto Finance (USA) plc held on 16 March 2012, 3 May 2017 and 27 April 2020 (in respect of which extracts of the minutes (the “Issuer Minutes” and, together with the Guarantor Minutes, the “Minutes”) have been supplied to us) were in each case duly convened, constituted and quorate and the resolutions referred to in the Issuer Minutes were validly passed and remain in full force and effect without modification; and

4.8the terms of any series of Debt Securities will not be inconsistent with the provisions of the Indenture and there will be no provision in any supplement to the Registration Statement or any other document which would affect the content of this opinion.

5Based on the documents referred to, and assumptions made, in paragraphs 3 and 4 above, and subject to the qualifications in paragraphs 6 and 7 below and to any matters not disclosed to us, we are of the following opinion:

5.2Each of Rio Tinto Finance (USA) plc and Rio Tinto plc has corporate power to enter into and perform its obligations under the Indenture and has taken all necessary corporate action to authorise its execution, delivery and performance of the Indenture.

6.1It should be understood that we have not been responsible for investigating or verifying the accuracy of the facts, including statements of foreign law, or the reasonableness of any statements of opinion, contained in the Registration Statement, or that no material facts have been omitted from it.

6.3We express no opinion as to the effect of any sanctions or other similar restrictive measures in relation to any party to the Indenture or the Debt Securities or the Guarantees or any transaction contemplated thereby.

6.4Our opinion that Rio Tinto Finance (USA) plc is existing is based on the Issuer Search and the Issuer Winding-up Search. It should be noted that the Issuer Search and the Issuer Winding-up Search are not capable of revealing conclusively whether or not a winding-up or administration petition or order has been presented or made, a receiver has been appointed, a company voluntary arrangement has been proposed or approved, a moratorium has been applied for or has come into force or any other insolvency proceeding has commenced.

6.5Our opinion that Rio Tinto plc is existing is based on the Guarantor Search and the Guarantor Winding-up Search. It should be noted that the Guarantor Search and the Guarantor Winding-up Search are not capable of revealing conclusively whether or not a winding-up or administration petition or order has been presented or made, a receiver has been appointed, a company voluntary arrangement has been proposed or approved, a moratorium has been applied for or has come into force or any other insolvency proceeding has commenced.

7This opinion is given on the basis that there will be no amendment to or termination or replacement of the documents, authorisations and consents referred to in the Schedule to this opinion. This opinion is also given on the basis that we undertake no responsibility to notify any addressee of this opinion of any change in English law after the date of this opinion.

8We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to us made under the heading “Legal Matters” in the Registration Statement. In giving this consent we do not admit that we are within the category of persons whose consent is required within Section 7 of the Act or the rules and regulations of the Securities and Exchange Commission thereunder.

1Certified copies of (a) the Memorandum and Articles of Association of Rio Tinto Finance (USA) plc and (b) the Memorandum and Articles of Association of Rio Tinto plc, in each case in force as at the date of this opinion (together, the “Articles”).

2Certified copies of (a) the Memorandum and Articles of Association of Rio Tinto Finance (USA) plc and (b) the Memorandum and Articles of Association of Rio Tinto plc, in each case in force as at the date of execution of the Original Indenture (together, the “Original Articles”).

3Certified copies of (a) the Memorandum and Articles of Association of Rio Tinto Finance (USA) plc and (b) the Memorandum and Articles of Association of Rio Tinto plc, in each case in force as at the date of execution of the First Supplemental Indenture (together, the “First Supplemental Articles”).

4Certified copies of (a) the Memorandum and Articles of Association of Rio Tinto Finance (USA) plc and (b) the Memorandum and Articles of Association of Rio Tinto plc, in each case in force as at the date of execution of the Second Supplemental Indenture (together, the “Second Supplemental Articles”).

11Amended and Restated Indenture dated 16 March 2012 (the “Original Indenture”), the First Supplemental Indenture dated 8 May 2017 (the “First Supplemental Indenture”) and the Second Supplemental Indenture dated 6 May 2020 (the “Second Supplemental Indenture” and together with the Original Indenture and the First Supplemental Indenture, the “Indenture”) among the Issuers, the Guarantors and The Bank of New York Mellon acting as trustee.


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		5 May 2023

Our Ref	L-331051