6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

Month of December 2023

Commission file number: 001-10533	Commission file number: 001-34121
Rio Tinto plc	Rio Tinto Limited
	ABN 96 004 458 404
(Translation of registrant’s name into English)	(Translation of registrant’s name into English)
6 St. James’s Square	Level 43, 120 Collins Street
London, SW1Y 4AD, United Kingdom	Melbourne, Victoria 3000, Australia
(Address of principal executive offices)	(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

EXHIBITS

99.1Stock Exchange announcement dated 1 December 2023 entitled ‘Total voting rights and issued capital’

99.2Stock Exchange announcement dated 1 December 2023 entitled ‘Rio Tinto and Giampaolo Group complete Matalco aluminium recycling transaction’

99.3Media release dated 3 December 2023 entitled ‘Rio Tinto approves new solar farm and battery storage to power its Amrun bauxite operations on Cape York’

99.4Media release dated 5 December 2023 entitled ‘Rio Tinto progresses Rhodes Ridge to next study phase’

99.5Media release dated 5 December 2023 entitled ‘Rio Tinto Kennecott to fully transition to renewable diesel’

99.6Stock Exchange announcement dated 6 December 2023 entitled ‘Release of Mineral Resource and Ore Reserve Estimates for Simandou’

99.7Stock Exchange announcement dated 6 December 2023 entitled ‘Simandou iron ore project update’

99.8Stock Exchange announcement dated 6 December 2023 entitled ‘Investor Seminar presentation’

99.9Stock Exchange announcement dated 6 December 2023 entitled ‘Rio Tinto invests with discipline to strengthen the performance of assets and grow’

99.10Stock Exchange announcement dated 6 December 2023 entitled ‘Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP)’

99.11Stock Exchange announcement dated 7 December 2023 entitled ‘Notification of Issue, Conversion or Payment up of Unquoted Equity Securities’

99.12Stock Exchange announcement dated 12 December 2023 entitled ‘Appendix 3X – Late lodgement’

99.13Stock Exchange announcement dated 13 December 2023 entitled ‘Appendix 3Z – Final Director’s Interest Notice’

99.14Stock Exchange announcement dated 22 December 2023 entitled ‘Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP)’

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned, thereunto duly authorised.

Rio Tinto plc		Rio Tinto Limited
(Registrant)		(Registrant)
By	/s/ Andrew Hodges	By	/s/ Tim Paine
Name	Andrew Hodges	Name	Tim Paine
Title	Company Secretary	Title	Company Secretary
Date	2 January 2024	Date	2 January 2024

EX-99.1

EXHIBIT 99.1

Notice to LSE

Total voting rights and issued capital

1 December 2023

In accordance with the Financial Conduct Authority’s (FCA) Disclosure Guidance and Transparency Rule 5.6.1R, Rio Tinto plc notifies the market that as of 30 November 2023:

1.Rio Tinto plc’s issued share capital comprised 1,255,891,990Ordinary shares of 10p each, each with one vote.

2.4,570,902 ordinary shares of 10p each are held in treasury. These shares are not taken into consideration in relation to the payment of dividends and voting at shareholder meetings.

Accordingly the total number of voting rights in Rio Tinto plc is 1,251,321,088. This figure may be used by shareholders (and others with notification obligations) as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change to their interest in, Rio Tinto plc under the FCA’s Disclosure Guidance and Transparency Rules.

Note:

As at the date of this announcement:

(a)Rio Tinto plc has also issued one Special Voting Share of 10p and one DLC Dividend Share of 10p in connection with its dual listed companies (‘DLC’) merger with Rio Tinto Limited which was designed to place the shareholders of both companies in substantially the same position as if they held shares in a single enterprise owning all of the assets of both companies;

(b)the Special Voting Share facilitates joint voting by shareholders of Rio Tinto plc and Rio Tinto Limited on joint electorate resolutions; and

(c)there are 371,216,214 publicly held Rio Tinto Limited shares in issue which do not form part of the share capital of Rio Tinto plc.

LEI: 213800YOEO5OQ72G2R82

Classification: 2.5 Total number of voting rights and capital disclosed under article 15 of the Transparency Directive

Notice to LSE    2 / 2

Contacts

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493	Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885	Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404

This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary.

riotinto.com

EX-99.2

Notice to ASX/LSE Rio Tinto and Giampaolo Group complete Matalco aluminium recycling transaction 1 December 2023 LONDON – Rio Tinto and Giampaolo Group have completed a transaction to form the Matalco joint venture, combining the strengths of North America's largest primary and secondary aluminium producers to meet the growing demand from manufacturers for low carbon materials. Following the receipt of all regulatory approvals, Rio Tinto has acquired a 50% equity stake in the Matalco business from Giampaolo Group for $700 million, subject to usual closing adjustments. As Rio Tinto begins to market Matalco products, Rio Tinto will be able to offer customers a full suite of aluminium products including low-carbon primary aluminium made with hydropower and a diverse portfolio of recycled aluminium solutions. The investment will expand Rio Tinto’s aluminium business in the US, where demand for recycled aluminium is forecast to increase by more than 70% from 2022 to 2032, driven by the transportation, construction, and packaging sectors. Over the same period, global recycled aluminium consumption is forecast to grow by more than 60%.1 Matalco will remain the operator of the joint venture’s six facilities in the United States and its Canadian site, which together have a capacity to produce approximately 900,000 tonnes of recycled aluminium per annum. Matalco will also continue to provide closed-loop solutions to transform customers’ scrap into high-quality aluminium slab and billet. For the eight-month period ending on 30 September 2023, Matalco produced approximately 400,000 tonnes of recycled aluminium, including 78% billet and 22% slab. For the same period, Matalco generated an EBITDA of $165 per tonne. Over the last five years, Matalco more than doubled its production capacity. Rio Tinto and Giampaolo Group will be working together to assess opportunities to continue growing the Matalco business and expand output, with an initial focus on North America. Rio Tinto Chief Executive Jakob Stausholm said: “Creating the Matalco joint venture gives Rio Tinto a leading position in the rapidly growing North American recycled aluminium market, allowing us to offer a full complement of low-carbon recycled products. We look forward to working in partnership with Giampaolo Group to support the drive to net zero by expanding recycled production and providing closed-loop recycling solutions to help our customers reduce their carbon footprint.” Giampaolo Group CEO Chris Galifi said: “We are thrilled about beginning our partnership with Rio Tinto, on forming a joint venture for Matalco. This collaboration showcases our dedication to continuously evolving our production of high-quality, low-carbon aluminium. We look forward to continuing to grow with our new partners while providing products that support sustainability.” 1 Source: CRU Aluminium Long Term Market Outlook, December 2022. EXHIBIT 99.2

Notice to ASX/LSE 2 / 3 About Rio Tinto Aluminium Rio Tinto is a global leader in aluminium, with a large-scale, vertically-integrated business: bauxite mines and alumina refineries as well as smelters producing aluminium certified as responsible. The Matalco joint venture continues Rio Tinto’s investment in building its supply of low carbon aluminium in North America. Previous investments include $1.1 billion to expand the use of its AP60 technology at its Arvida aluminium smelter in June 2023 and $29 million to establish new recycling capabilities at the Arvida smelter in August 2022, both in the Saguenay-Lac-Saint-Jean region of Quebec. Rio Tinto is also working with the Governments of Canada and Quebec towards a deployment of the ELYSISTM zero carbon aluminium smelting technology at its Saguenay–Lac-Saint-Jean facilities. With the current development pathway, the ELYSIS joint venture between Rio Tinto and Alcoa aims to have its technology available for installation from 2024 and the production of larger volumes of carbon-free aluminium approximately two years later. About Giampaolo Group and Matalco The Giampaolo Group was founded over 50 years ago in Toronto, Ontario with a distinct focus in the recycling industry. Since established, the organization has evolved into a multinational integrated metal corporation. The Giampaolo Group focuses on harvesting waste within the metal ecosystem by operating within the recycling, manufacturing, and IT asset disposition space. Established in 2005, Matalco is a leading producer of recycled aluminium billet and slab. From the initial foray into 6XXX series billet, Matalco currently produces a variety of 3XXX, 5XXX, 6XXX and 7XXX billet and slab while offering both direct and tolled products. Headquartered in Brampton, Ontario, the company has solidified its position as a frontrunner in the industry. With seven remelting and casting facilities spread across North America, Matalco employs over 650 skilled professionals and operates an extensive logistics network to service its customers. Its primary focus is to supply upstream producers of extruded, forged, and rolled products while relying on Triple M Metal to supply recyclable raw material to provide a truly closed loop solution to its customers.

Notice to ASX/LSE 3 / 3 Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary. riotinto.com Category: Canada

EX-99.3

EXHIBIT 99.3

Please direct all enquiries to:

Media Release    media.enquiries@riotinto.com

Rio Tinto approves new solar farm and battery storage to power its Amrun bauxite operations on Cape York

3 December 2023

WEIPA, Australia -- Rio Tinto has approved a new 12.4MW solar farm and 8.8MVa/2.1MWh of battery storage to provide renewable energy for the Amrun bauxite operations near Weipa in Queensland.

The 12.4MW solar farm and battery storage are part of Rio Tinto’s global decarbonisation strategy and ongoing efforts to reduce emissions at its Pacific bauxite, alumina and aluminium operations.

They are expected to reduce Amrun’s diesel electricity consumption by 37 percent and annual CO2-equivalent emissions by 14,000 tonnes, and will add to the existing 5.6MW of solar and 4MWh of battery power built for Rio Tinto’s Weipa operations and the local electricity network since 2015.

Aggreko has been contracted to build, own, and operate the solar farm to supply renewable electricity to the mine operations, in addition to its current contract to supply electricity generated from an existing diesel power station.

Rio Tinto Weipa Operations General Manager Shona Markham said “The construction of the Amrun solar farm and battery storage system, which is located on Wik and Wik-Waya Traditional lands, is an important milestone for Weipa Operations and will contribute to Rio Tinto’s commitment to reduce operational greenhouse gas emissions.

“The Amrun solar farm will be one of three Weipa Operations solar stations, which will together provide 18MW of solar generation capacity to our mines and the Weipa town. This project helps us make inroads towards our ambitions to reduce greenhouse gas emissions from our operations.”

Managing Director of Aggreko Asia Pacific George Whyte said “Aggreko is excited to be supporting Rio Tinto on working towards meeting their decarbonisation goals and our own with this project.

This partnership aligns with our mission to accelerate the energy transition and as a world leader in the supply of clean energy infrastructure, we are confident that we will successfully deliver reliable and efficient energy for Rio Tinto’s Amrun operations.”

Early works have begun on the new solar farm, which is expected to be operational by early 2025. Once completed, the Amrun solar farm will provide about 21 gigawatt hours of renewable power annually.

Combined with the existing Weipa renewable power generation network, the solar farms will reduce Weipa Operations’ diesel consumption by an estimated 10 million litres per year and lower its annual greenhouse gas emissions by about 28,000 tonnes - the equivalent of taking almost 6,000 internal combustion engine passenger cars off the road.

More information on Rio Tinto’s climate targets can be found here.

Note to editors

Rio Tinto’s Weipa Operations in Far North Queensland includes three bauxite mines, processing facilities, shiploaders, an export wharf, two ports, power stations, a rail network and ferry terminals. Rio Tinto also provides the municipal services for the town of Weipa.

Amrun, Weipa’s newest mine, was completed in 2018 and will extend the Weipa bauxite operations by decades, significantly building on our 60-year history on Western Cape York, and providing jobs and supporting business

Media Release    2 / 3

growth in the region. The mine is located on traditional land and Rio Tinto operates within the terms of an Indigenous Land Use Agreement Rio Tinto has had with local Traditional Owners for more than 20 years. Rio Tinto works closely with the Traditional Owners to implement our agreements, ensuring that the benefits generated from mining support future generations and that important cultural heritage sites are identified and preserved.

More information on solar farms at Weipa can be found here

Media Release    3 / 3

Contacts 

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations,   United Kingdom  Matthew Klar M +44 7796 630 637  David Outhwaite M +44 7787 597 493	Media Relations,   Australia  Matt Chambers M +61 433 525 739  Jesse Riseborough M +61 436 653 412  Alyesha Anderson M +61 434 868 118  Michelle Lee M +61 458 609 322	Media Relations,   Americas  Simon Letendre M +1 514 796 4973  Malika Cherry M +1 418 592 7293  Vanessa Damha M +1 514 715 2152
Investor Relations,   United Kingdom  Menno Sanderse M +44 7825 195 178  David Ovington M +44 7920 010 978  Laura Brooks  M +44 7826 942 797	Investor Relations,   Australia  Tom Gallop M +61 439 353 948  Amar Jambaa  M +61 472 865 948

riotinto.com 

EX-99.4

EXHIBIT 99.4

Please direct all enquiries to:

Media Release    media.enquiries@riotinto.com

Rio Tinto progresses Rhodes Ridge to next study phase

5 December 2023

Rio Tinto has approved a $77 million (A$110 million) pre-feasibility study (PFS) to progress development of the Rhodes Ridge project, one of the world’s best undeveloped iron ore deposits, in the East Pilbara in Western Australia.

The commencement of a PFS follows completion of an Order of Magnitude study that considered development of an operation with initial capacity of up to 40 million tonnes annually, subject to relevant approvals. The PFS is expected to be completed by the end of 2025 and will be followed by a feasibility study. First ore from the initial development is expected by the end of this decade.

Rio Tinto is planning to spend more than A$400 million on exploration over five years from 2024 to 2028 as part of the ongoing study phases. Study work to date indicates a staged development with an initial hub likely to be located in the northern part of the project, adjacent to existing rail infrastructure.

Last year, Rio Tinto (50 per cent) and Wright Prospecting Pty Ltd (50 per cent) agreed to modernise the joint venture covering the Rhodes Ridge project, located 40 kilometres north-west of Newman.

Rhodes Ridge contains 6.8 billion tonnes of Mineral Resources at an average grade of 61.6% Fe, including 5.3 billion tonnes at 62.2% Fe and 0.6 billion tonnes at 63.9% Fe.1

Rio Tinto Iron Ore Chief Executive Simon Trott said “The size and quality of the resource base at Rhodes Ridge has the potential to underpin our iron ore business in the Pilbara for decades to come. Longer term, the resource could support a world-class mining hub with a potential capacity of more than 100 million tonnes of high-quality iron ore a year.

“We are committed to working closely with the Traditional Owners, the Nyiyaparli and Ngarlawangga People, as we progress this project.”

The joint venture will utilise Rio Tinto’s existing rail, port and power infrastructure, including the planned instalment of renewable power assets in the Pilbara.

Contacts 

Please direct all enquiries to media.enquiries@riotinto.com

1The Mineral Resources reported for the Rhodes Ridge Joint Venture between Rio Tinto (50 per cent) and Wright Prospecting Pty Ltd (50 per cent), form part of the Pilbara Mineral Resource estimates reported in Rio Tinto’s 2022 Annual Report released to the ASX on 22 February 2023. These Mineral Resources are not materially different to the breakdown of the Rhodes Ridge Mineral Resources reported in Rio Tinto’s 2020 Annual Report released to the ASX on 22 February 2021. The Competent Persons responsible for reporting these Mineral Resource estimates were Mr P Savory, who is a Fellow of The Australasian Institute of Mining and Metallurgy, and Ms N Brajkovich, Mr C Kyngdon, Mr M Judge and Ms A Latscha who are Members of The Australasian Institute of Mining and Metallurgy. Rio Tinto is not aware of any new information or data that materially affects these Mineral Resource estimates and confirms that all material assumptions and technical parameters underpinning the estimate continue to apply and have not materially changed. The form and context in which the Competent Persons’ findings are presented have not been materially modified from when they were reported. Mineral Resources are quoted in this release on a 100 per cent basis, as dry in-situ tonnes. Rhodes Ridge contains 6.8 billion tonnes of Mineral Resources at an average grade of 61.6% Fe; comprising 0.8 billion tonnes of Indicated Mineral Resources at an average grade of 62.4% Fe and 6.0 billion tonnes of Inferred Mineral Resources at an average grade of 61.5% Fe. These Mineral Resources include 0.6 billion tonnes of high grade Brockman Indicated Mineral Resources at an average grade of 63.9% Fe; 0.03 billion tonnes of high grade Detrital Indicated Mineral Resources at an average grade of 61.3% Fe; and 5.3 billion tonnes of high grade Brockman, Marra Mamba and Detrital Inferred Mineral Resources at an average grade of 62.2% Fe.

Media Release    2 / 2

Media Relations,   United Kingdom  Matthew Klar M +44 7796 630 637  David Outhwaite M +44 7787 597 493	Media Relations,   Australia  Matt Chambers M +61 433 525 739  Jesse Riseborough M +61 436 653 412  Alyesha Anderson M +61 434 868 118  Michelle Lee M +61 458 609 322	Media Relations,   Americas  Simon Letendre M +1 514 796 4973  Malika Cherry M +1 418 592 7293  Vanessa Damha M +1 514 715 2152
Investor Relations,   United Kingdom  Menno Sanderse M +44 7825 195 178  David Ovington M +44 7920 010 978  Laura Brooks  M +44 7826 942 797	Investor Relations,   Australia  Tom Gallop M +61 439 353 948  Amar Jambaa  M +61 472 865 948
Rio Tinto plc  6 St James’s Square  London SW1Y 4AD  United Kingdom  T +44 20 7781 2000  Registered in England  No. 719885	Rio Tinto Limited  Level 43, 120 Collins Street  Melbourne 3000  Australia  T +61 3 9283 3333  Registered in Australia  ABN 96 004 458 404

riotinto.com 

EX-99.5

EXHIBIT 99.5

Media Release

Rio Tinto Kennecott to fully transition to renewable diesel

5 December 2023

SALT LAKE CITY--(BUSINESS WIRE)-- Rio Tinto will replace its entire fossil diesel consumption with renewable diesel at its Kennecott copper operation in Utah from 2024.

Kennecott’s fleet of 90 haul trucks and all heavy machinery will begin to transition to renewable diesel in the first quarter of 2024, along with consumption from the concentrator, smelter, and refinery.

The transition will reduce Kennecott’s Scope 1 carbon emissions by approximately 495,000 tons of CO2 equivalent per annum, comparable to eliminating the annual emissions of more than 107,000 passenger cars.

The renewable diesel is made from renewable biogenic materials sourced in the United States. It will be supplied through the existing diesel supply chain, as part of a continuing partnership between Kennecott and HF Sinclair.

Rio Tinto Copper Chief Operating Officer Clayton Walker said: “Transitioning Kennecott completely to renewable diesel builds on a suite of decarbonisation initiatives that have reduced carbon emissions from the operation by 65% since 2019.

“This is an important next step in our commitment to finding new and better ways to reduce operational emissions, while producing materials essential to the global energy transition.”

HF Sinclair Executive Vice President, Commercial, Steven Ledbetter said: “As a long-time supplier of Rio Tinto and a fellow operator in the Rocky Mountain region, we are pleased to support Rio Tinto’s sustainability journey with a low-carbon fuel made at our facilities. This is a great step demonstrating our continued progress to meet the evolving energy needs of our customers.”

Rio Tinto is targeting reductions in Scope 1 and 2 carbon emissions of 50% by 2030 and net zero by 2050.

Rio Tinto Chief Decarbonisation Officer Jonathon McCarthy said: “Combined with Rio Tinto's U.S. Borax operation - which completed the full transition of its heavy machinery from fossil diesel to renewable diesel in May 2023 - this initiative would replace 11% of Rio Tinto's global fossil diesel consumption with renewable diesel.

“The use of drop-in fuel such as renewable diesel will allow Rio Tinto to reduce emissions in the short term, complementing ongoing work towards the commercial readiness of longer-term technical solutions such as battery electric haul trucks.”

The decision to convert to renewable diesel comes after a successful 7-month trial at Kennecott’s Bingham Canyon mine. This trial was conducted in collaboration with Cummins to test renewable diesel in different operational environments and on different equipment which supported the decision of Original Equipment Manufacturers to approve the use of renewable diesel in their equipment.

Media Release    2 / 2

Contacts 

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations,   United Kingdom  Matthew Klar M +44 7796 630 637  David Outhwaite M +44 7787 597 493	Media Relations,   Australia  Matt Chambers M +61 433 525 739  Jesse Riseborough M +61 436 653 412  Alyesha Anderson M +61 434 868 118  Michelle Lee M +61 458 609 322	Media Relations,   Americas  Simon Letendre M +1 514 796 4973  Malika Cherry M +1 418 592 7293  Vanessa Damha M +1 514 715 2152
Investor Relations,   United Kingdom  Menno Sanderse M +44 7825 195 178  David Ovington M +44 7920 010 978  Laura Brooks  M +44 7826 942 797	Investor Relations,   Australia  Tom Gallop M +61 439 353 948  Amar Jambaa  M +61 472 865 948
Rio Tinto plc  6 St James’s Square  London SW1Y 4AD  United Kingdom  T +44 20 7781 2000  Registered in England  No. 719885	Rio Tinto Limited  Level 43, 120 Collins Street  Melbourne 3000  Australia  T +61 3 9283 3333  Registered in Australia  ABN 96 004 458 404

riotinto.com 

EX-99.6

1 Notice to ASX Release of Mineral Resource and Ore Reserve Estimates for Simandou 6 December 2023 Rio Tinto today announces changes in Mineral Resources and Ore Reserves for Simandou Blocks 3 and 4 iron ore deposits (Simfer Iron Ore Project) in Guinea to be developed by Simfer SA1, a joint venture with the Republic of Guinea (State) (15%) and Simfer Jersey Ltd (85%), a joint venture between Rio Tinto (53%) and a Chinalco- led consortium of Chinese state-owned enterprises (CIOH) (47%). For the Ouéléba deposit at Simandou the Proved Ore Reserves estimate contains 273 Mt at 66.4% Fe, 1.0% SiO2, 1.2% Al2O3 and 0.07% P and the Probable Ore Reserves estimate contains 1,226 Mt at 65.0% Fe, 0.9% SiO2, 1.8% Al2O3 and 0.10% P. These reserves estimates are based on Rio Tinto’s estimate of capital cost and schedule and remain subject to closing of the co-development arrangements between the State, Simfer and Winning Consortium Simandou (WCS)2 for co-development of the rail and port infrastructure to unlock the Simandou deposits in Western Guinea. Simfer has signed agreements with the State and WCS, the owner of Simandou Blocks 1 and 2 deposits, to enable co-development of the rail and port infrastructure for the Simandou iron ore projects. The Co- Development Convention, which, along with bipartite amendments for each of the Simfer and WCS Mine Conventions, adapts the existing investment frameworks of Simfer and WCS. These conventions provide the legal framework for infrastructure co-development and establish the fiscal regime and the access arrangements (including tariff) that will apply for use of the infrastructure by the Simfer Mine (Blocks 3 and 4) and the WCS Mine (Blocks 1 and 2) as foundation customers. These conventions require ratification by the State and co- development of the Simandou rail and port infrastructure remains subject to a number of conditions, including regulatory approvals from the Guinean and Chinese governments, the entry into a number of legal agreements and agreement between Simfer, WCS and the Government of Guinea regarding the budget for the rail and port infrastructure. Rio Tinto is also reporting Mineral Resources exclusive of Ore Reserves for the Ouéléba and Mineral Resources for Pic de Fon deposits at Simandou of 1,360 Mt at 66.1% Fe, 1.6% SiO2, 1.4% Al2O3 and 0.06% P consisting of Measured Mineral Resources of 147 Mt at 67.1% Fe, Indicated Mineral Resources of 440 Mt at 66.2% Fe and Inferred Mineral Resources of 773 Mt at 65.8% Fe. The Mineral Resource cut-off for reporting is Fe greater than or equal to 58% and Al2O3 + SiO2 less than or equal to 8% and P less than or equal to 0.25%. 1 The ownership of Simfer SA in 2023 is 15% Republic of Guinea and 85% Simfer Jersey Limited, the ownership of which is 53% Rio Tinto and 47% Chalco Iron Ore Holdings Ltd, resulting in a look through interest for Rio Tinto of 45.05% Rio Tinto and 39.95% CIOH. 2 WCS is a consortium of Singaporean company, Winning International Group (49.99%), Weiqiao Aluminium (part of the China Hongqiao Group) (49.99%) and United Mining Suppliers International (0.002%). WCS is the holder of Simandou North blocks 1 & 2 (with the State holding a 15% interest in the mining vehicle and WCS holding 85%) and associated infrastructure. Baowu Resources has entered into an agreement to acquire a 49% share of the WCS project through a Baowu-led consortium, subject to conditions including regulatory approvals. EXHIBIT 99.6

2 The change in Mineral Resources and Ore Reserves are reported in accordance with the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, 2012 (JORC Code) and the ASX Listing Rules. Supporting information is set out in this release and its Appendix. Mineral Resources and Ore Reserves are quoted in this release on a 100 percent basis. Rio Tinto ownership percentage is 45.05%. Mineral Resources are reported in addition to Ore Reserves.

Notice to ASX 3 / 34 3 Mineral Resources and Ore Reserves declaration A tabulation of the update to the Mineral Resources at the Simfer Iron Ore Project is provided in Table A. A tabulation of the new Ore Reserves at the Simfer Iron Ore Project is provided in Table B. Table A Simfer Iron Ore Project Mineral Resources as at 6 December 2023(b) (c) Likely mining method(a) Total Measured and Indicated Mineral Resources Measured Mineral Resources Indicated Mineral Resources as at 6 December 2023 Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI O/P 147 67.1 1.9 1.1 0.04 1.0 440 66.2 1.8 1.5 0.05 1.8 587 66.4 1.8 1.4 0.05 1.6 Likely mining method(a) Total Mineral Resources Rio Tinto Interest Total Mineral Resources Inferred Mineral Resources as at 6 December 2023 as at 31 December 2022 Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI % Mt % Fe % SiO2 % Al2O3 % P % LOI O/P 773 65.8 1.4 1.4 0.07 2.8 1,360 66.1 1.6 1.4 0.06 2.3 45.05 2,829 65.7 1.2 1.5 0.08 3.0 (a) Likely mining method: O/P = open pit (b) Mineral Resources of iron ore are stated on a dry in situ weight basis (c) Simandou Mineral Resources tonnes decreased due to conversion of Resources to Reserves following completion of the feasibility study for Ouéléba Table B Simfer Iron Ore Project Ore Reserves as at 6 December 2023(b) (c) Type of mine(a) Total Ore Reserves Rio Tinto Interest Rio Tinto Share Marketable product Proved Ore Reserves Probable Ore Reserves as at 6 December 2023 (d) (e) Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI % Mt O/P 273 66.4 1.0 1.2 0.07 2.5 1,226 65.0 0.9 1.8 0.10 3.9 1,499 65.3 0.9 1.7 0.09 3.7 45.05 675 (a) Type of mine: O/P = open pit (b) Reserves of iron ore are reported on a dry weight basis and shown as recoverable Reserves of marketable product after accounting for all mining and processing losses. (c) Simandou iron ore Reserves tonnes are reported for the first time since 2016 (d) Only Measured and Indicated Resources have been considered in the conversion of Mineral Resources to Ore Reserves after the application of modifying factors (e) Ore Reserves relates to the Ouéléba portion only of the Simfer Iron Ore Project

Notice to ASX 4 / 34 4 Summary of information to support the Mineral Resource reporting Rio Tinto is reporting updates to the Simandou Mineral Resources and new Ore Reserves based on Rio Tinto’s estimate of capital cost and schedule and remain subject to closing of the co-development arrangements between the State, Simfer and Winning Consortium Simandou (WCS)3 for co-development of the rail and port infrastructure to unlock the Simandou deposits in Western Guinea. This Ore Reserves estimate has been made by the Competent Person and reported in accordance with the JORC Code as required by Simfer’s Mining Convention. We note that, consistent with the JORC Code, some elements are at pre-feasibility level and work continues to refine all elements to feasibility level consistent with Rio Tinto’s global practice. Mineral Resources are supported by the information set out in the Appendix to this release in accordance with the Table 1 checklist in the JORC Code. The following summary information is provided in accordance with rule 5.8 of the ASX Listing Rules. The impact of reporting the Mineral Resources in addition to Ore Reserves is the conversion of 1,469 Mt of undiluted Mineral Resources into 1,499 Mt of Ore Reserves, inclusive of dilution, at Ouéléba. Pic de Fon will undergo an additional feasibility study as part of the study required under Simfer’s amended mining convention to increase production from 60 Mtpa to 100 Mtpa subject to commensurate expansion of the rail and port infrastructure pursuant to the Co-development Convention. Currently Pic de Fon is reported as Mineral Resources only. A full tabulation of the Simfer Iron Ore Project Mineral Resources based on optimised pit shells exclusive of the mine design pit is provided in Table A. Details of data collection and resource estimation techniques are provided in the Appendix to this release. Geology and geological interpretation The Mineral Resources are based on the Pic de Fon and Ouéléba deposits which are typical of supergene- enriched itabirite hosted iron deposits. The deposits are similar to other known deposits such as the Nimba deposit (Guinea) and deposits within the Iron Quadrangle (Brazil). The deposits are part of a supracrustal belt with the banded iron formation (BIF) proto-ore likely deposited in a shallow marine setting within a forearc basin. The deposits are located in the Simandou Range on a prominent ridge. The Simandou Range is the result of multi-phase ductile deformation represented by tight synformal fold keels and sheared antiformal structures. The ridge consists of a formation of itabirites (metamorphosed BIF) and phyllites overlying basement gneiss and amphibolite. The itabirites and phyllites have been deeply weathered and identifying stratigraphy is difficult, with the only discernible contact being that between the itabirites and phyllites. Laterite and carapace domains are sub-horizontal with the laterite overlying all other lithologies, in local areas, and the carapace overlying the mineralisation and enriched itabirite lithologies. The itabirites and phyllites are interpreted to be folded with the axial planes of the fold hinges dipping moderately to steeply towards the west. Drilling techniques; sampling and sub-sampling techniques; and sample analysis method Drilling has been carried out using a combination of diamond (DD) and reverse circulation (RC) drilling methods, with sampling predominantly on a 2 m sample interval. Assays have been carried out on half core and split RC samples using an X-ray fluorescence (XRF) fusion disc and whole rock analysis completed for 24 elements. Loss on ignition (LOI) is measured using a thermo-gravimetric analyser at three temperatures. Estimation methodology 3 WCS is a consortium of Singaporean company, Winning International Group (49.99%), Weiqiao Aluminium (part of the China Hongqiao Group) (49.99%) and United Mining Suppliers International (0.002%). WCS is the holder of Simandou North blocks 1 & 2 (with the State holding a 15% interest in the mining vehicle and WCS holding 85%) and associated infrastructure. Baowu Resources has entered into an agreement to acquire a 49% share of the WCS project through a Baowu-led consortium, subject to conditions including regulatory approvals.

Notice to ASX 5 / 34 5 The geological interpretation was completed by Rio Tinto and WSP/Golder. The method involved the use of surface geological mapping, surface structural measurements, downhole televiewer structural measurements, lithological logging data, assay data and downhole geophysical data. The interpretations have evolved from 2007 to current, moving from sectional interpretations that were linked into 3D wireframes to 3D construction of wireframes using Leapfrog™ software. Estimation has been carried out by ordinary kriging for Fe, SiO2, Al2O3, P, CaO, K2O, Total LOI, MgO, Mn, Na2O, S and TiO2 and an average density has been applied to each domain. The Ouéléba block model cell size was 30 m by 30 m by 6 m with a minimum sub-cell size of 5 m by 5 m by 2 m and the Pic de Fon block model cell size was 60 m by 60 m by 12 m with a minimum sub-cell size of 10 m by 10 m by 2 m. The parent block sizes in the horizontal plane are approximately half the drill spacing at each deposit. The block heights correspond to the proposed selective mining flitch heights for each deposit. Criteria used for Mineral Resources classification Classification is based on sample spacing and has been carried out after consideration of the level of confidence assigned to interpretations of geology and mineralisation controls, assay and drilling data quality, confidence in estimation parameters, including kriging variance and degree of extrapolation and through visual validation. The result is a model classified as Measured Mineral Resources based on a maximum drill spacing no greater than 70 m, Indicated Mineral Resources based on a drill hole spacing greater than 70 m and maximum drill hole spacing of 120 m and Inferred Mineral Resources based on a drill spacing greater than 120 m and maximum drill hole spacing of 220 m. Cut-off grades and modifying factors The Mineral Resources across the Simfer Iron Ore Project deposits were calculated using a cut-off of Fe ≥ 58% and SiO2 + Al2O3 ≤ 8% and P ≤ 0.25%. A cut-off grade using a combined Al2O3 and SiO2 was determined by grade tonnage curves to be representative of the material to be mined and crushed for transportation to customers. Reasonable prospects for eventual economic extraction (RPEEE) have been assessed through a mining and processing study at Pic de Fon and a study at Ouéléba. The establishment of an economic pit-shell indicates conventional open pit mining and processing routes would be appropriate in the exploitation of the Simandou deposits. Reported Inferred, Indicated and Measured Mineral Resources have been constrained within an optimised pit shell using Rio Tinto forward looking price assumptions, potential processing routes and recoveries. Additional mineralised material outside of the pit shell is not reported as Mineral Resources in this release, however studies are ongoing to determine under what conditions the additional mineralisation may be considered economic. Summary of information to support the Ore Reserves reporting Ore Reserves are supported by the information set out in the Appendix to this release in accordance with the Table 1 checklist in the JORC Code (2012). The following summary information is provided in accordance with rule 5.9 of the ASX Listing Rules. Economic assumptions and study outcomes The Ore Reserves were estimated for the Ouéléba deposit within the Simfer Iron Ore Project by WSP/Golder Associates. The Ore Reserves are based upon a minimum of pre-feasibility study for the mine plan and mine design including schedule covering the life of mine within the Ouéléba deposit. The total Proved and Probable Ore Reserves are estimated at 1,499 Mt at 65.3% Fe, 0.9% SiO2, 1.7% Al2O3 and 0.09% P saleable product. Of this total, 82% of the saleable product is within the Probable Ore Reserves category. Mining of the Simfer Iron Ore Project has been planned at medium-selectivity using conventional open pit mining equipment, mining two 6 m high flitches within a 12 m high mining bench. The mining process will include drill and blast as well as conventional load and haul operations. There is expected to be a notable amount of free-dig

Notice to ASX 6 / 34 6 material below the cap rock, with the majority of material assumed to require relatively modest amounts of drilling and blasting. Mining method and assumptions Mining will comprise a conventional hydraulic shovel operation typically using 600 t class excavators in backhoe configuration for mining ore and waste. Rigid body 220 t class dump trucks will be used for hauling ore and waste on designed access roads. An auxiliary mining fleet of dozers, graders, water carts and utility vehicles will support the mining operation. Mining will be carried out using a general north to south mining sequence incorporated within the Life of Mine (LOM) Final Pit. The mining schedule defines movement of ore and waste on 12 m mining benches, by year, for total LOM. First production is expected in 2025, ramping up over 30 months to an annualised capacity of 60 Mtpa which will be underpinned as to 18% by Proved Ore Reserves and 82% by Probable Ore Reserves. Cut-off grades, estimation methodology and modifying factors Pit optimisations were completed using the Lerchs-Grossmann (LG) algorithm in Whittle 4XTM software to calculate the optimal pit at the specified input parameters. A wireframe pit shell for each iron ore price considered was the resultant output. The Revenue Factor (RF) 0.65 pit shell was selected as the base for the final LOM Pit design. A pit of approximately 2.2 Bt of rock was selected as the final pit shell in that some 98% of the potential ore feed material was contained within the selected pit shell. A set of designs have been created based on the pushbacks general phases and the final pit shell estimated in Whittle software at 60 million ore tonnes plant rate per annum. The designs are appropriate for the feasibility study. A minimum mining width of 50 m has been considered except for some areas located at the bottom of the pits where a minimum mining width of 35 m has been used. An estimated marginal cut-off grade was established at Fe ≥ 58% and SiO2 + Al2O3 ≤ 8% and P ≤ 0.25% based upon the sales of a Direct Shipping Ore (DSO) iron ore product. The Mineral Resource model was validated and used to develop a mining model, as the basis for a LOM plan and economic assessment. Regularisation of the Mineral Resource model resulted in the mining model adequately accounting for the expected ore loss and dilution for the scale of mining being proposed. The mine design for the Simfer Iron Ore Project consists of a series of nested conventional open pit layouts with orebody access provided through a series of ramps. For mining purposes, the Ouéléba orebody can be considered a layered sequence within a syncline fold. An allowance of 0.5% fines losses has been incorporated within the product handling system from crusher through to ship loading, this percentage of ore loss estimate has been provided by Rio Tinto based upon experience at multiple direct shipping operations. The site has road access and is readily accessible for power, water, and additional infrastructure requirements. Camp facilities are in place with a current workforce involved in further geological sampling and early construction works for the project. Planned expansion of the camp facilities including a dedicated airstrip are planned for the project construction phase. The rail and port infrastructure to enable export of the ore from the Simfer Iron Ore Project will be co-developed as a joint venture between the Guinean State, Simfer Jersey and Winning Consortium Simandou (WCS), with the ultimate owner and operator of the co-developed infrastructure being the Compagnie du Transguinéen (CTG). Agreements with the State to create the legal framework for infrastructure co-development have been signed and remain subject to ratification by the State. The Co-Development Convention, along with bipartite amendments for each of the Simfer and WCS Mine Conventions, adapts the existing investment frameworks of Simfer and WCS and establish the fiscal regime and the access arrangements (including tariff) that will apply for use of the infrastructure by the Simfer Mine (Blocks 3 and 4) and the WCS Mine (Blocks 1 and 2) as foundation customers. These conventions require ratification by the State and co-development of the Simandou rail and port infrastructure remains subject to a number of conditions, including regulatory approvals from the Guinean and

Notice to ASX 7 / 34 7 Chinese governments, the entry into a number of legal agreements and agreement between Simfer, WCS and the Government of Guinea regarding the budget for the rail and port infrastructure. The co-developed rail and port infrastructure includes a purpose-built port facility to be constructed at Morebaya estuary which will facilitate the export of the iron ore from the Simfer Mine and WCS Mine. The port will have a capacity of 120 Mtpa and will be shared with WCS. The port will be accessed by a purpose built approximately 536 km main rail line with spurs to connect the Simfer Mine (68 km) and WCS Mines (16 km) to the port at Morebaya The rail will have initial capacity of up to 120 Mtpa. Studies to confirm the ability to expand the rail and port infrastructure to 160 Mtpa to enable the expansion of the Simfer Mine from 60 Mtpa to 100 Mtpa will be undertaken in accordance with the Co-Development Convention and Mine Bipartite Convention. The Social and Environmental Impact Assessment (SEIA) was completed and approved in 2012, describing the key management requirements that apply to the development of the Simfer Iron Ore Project and the associated rail and port infrastructure to be built by Simfer Jersey. This assessment has been updated to reflect the Simfer scope of the co-developed infrastructure project and to meet current leading practices, utilising modern techniques for mitigation. The SEIA including management plans and commitments has been updated based on current project design. An updated SEIA for the mine and rail spur was submitted for regulatory review in July 2023 and an update to the SEIA for the port was submitted in November 2023. Stakeholder engagement has continued since 2012 to maintain local relationships and understand the concerns of local communities, which has been supplemented by additional consultation meetings to support the ESIA updates. Social baseline studies have been updated to reflect changing societal structures, and cultural heritage studies are ongoing. Pre- clearance surveys are completed to ensure no sensitive biodiversity sites or cultural heritage is being impacted by approved works. Economic and physical displacement has been minimised through integrated engineering and social designs. Social and environmental commitments have been updated and included in the project cost model. Criteria used for Ore Reserves classification The Ore Reserves estimation process converted 95% of the Ouéléba Measured and Indicated Mineral Resources to Proved and Probable Ore Reserves. All the Proved Ore Reserves estimate is based on the Measured Mineral Resources and all the Probable Ore Reserves estimate is based on the Indicated Mineral Resources. Processing method and assumptions The ore will be crushed and shipped directly to the market.

Notice to ASX 8 / 34 8 Figure 1 Property location map

Notice to ASX 9 / 34 9 Figure 2 Tenement location

Notice to ASX 10 / 34 10 Figure 3 Drill hole location plan Ouéléba Figure 4 Drill hole location plan Pic de Fon

Notice to ASX 11 / 34 11 Figure 5 Cross section 956640 mN through northern Ouéléba orebody showing the geological model and drill hole traces LAT=laterite; CAP=carapace; CAN=canga; TRN=transitional; HGF=friable hematite goethite; HEM=medium hard hematite; IRF=enriched itabirite; IPF=friable poor itabirite; IPC=compact poor itabirite; PHV=very weak phyllite; PHW=weak phyllite; PHS=soil strength phyllite; PHC=compact phyllite; QTW=weak quartzite; QTC=compact quartzite; BAS=undifferentiated basement. Section 956640mN

Notice to ASX 12 / 34 12 Figure 6 Cross section 956640 mN through northern Ouéléba orebody showing the geology block model and drill hole traces coloured by Fe grade, and the Ore Reserves pit limit and the Mineral Resources limit.

Notice to ASX 13 / 34 13 Figure 7 Cross section 952700 mN through southern Ouéléba orebody showing the geological model and drill hole traces CAP=carapace; TRN=transitional; HGF = friable hematite goethite; HEP=hematite; IRF=enriched itabirite; IPF =friable poor itabirite; IPC=compact poor itabirite; PHV=very weak phyllite; PHW= weak phyllite; PHC=compact phyllite; QTC=compact quartzite. Section 952700mN

Notice to ASX 14 / 34 14 Figure 8 Cross section 952700 mN through southern Ouéléba orebody showing the geology block model and drill hole traces coloured by Fe grade, and the Ore Reserves pit limit and the Mineral Resources limit

Notice to ASX 15 / 34 15 Figure 9 Cross section 943940 mN through Northern Pic de Fon orebody showing the geological model and drill hole traces CAP=carapace; TRN=transitional; HEF=friable hematite; IRF=enriched itabirite; IPF=friable poor itabirite; IPC=compact poor itabirite; PHC=compact phyllite. Section 943940mN

Notice to ASX 16 / 34 16 Figure 10 Cross section 943940 mN through Northern Pic de Fon orebody showing the geology block model and drill hole traces coloured by Fe grade, and the Mineral Resources limit

Notice to ASX 17 / 34 17 Figure 11 Cross section 942420 mN through Southern Pic de Fon orebody showing the geological model and drill hole traces CAP=carapace; HEF=friable hematite; IRF=enriched itabirite; IPF=friable poor itabirite; IPC=compact poor itabirite; PHW=weak phyllite; PHC=compact phyllite. Section 942420mN

Notice to ASX 18 / 34 18 Figure 12 Cross section 942420 mN through Southern Pic de Fon orebody showing the geology block model and drill hole traces coloured by Fe grade, and the Mineral Resources limit

Notice to ASX 19 / 34 19 Competent Persons’ statement The information in this report that relates to Mineral Resources is based on, and fairly represents, information compiled under the supervision of Kaye Tindale, who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). Kaye Tindale has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity to which they are undertaking to qualify as a Competent Person as defined in the JORC Code. Kaye Tindale is a full-time employee of Rio Tinto and consents to the inclusion in this report of Simandou Mineral Resources based on the information that has been prepared in the form and context in which it appears. The information in this report that relates to Ore Reserves is based on, and fairly represents, information compiled under the supervision of Michael Apfel who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). Michael Apfel has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity to which he is undertaking to qualify as a Competent Person as defined in the JORC Code. Michael Apfel is a full-time employee of Rio Tinto and consents to the inclusion in this report of Simandou Ore Reserves based on the information that has been prepared in the form and context in which it appears.

Notice to ASX 20 / 34 20 Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks   M +44 7826 942 797  Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary riotinto.com

Appendix 21 / 34 21 Simandou Ouéléba and Pic de Fon Deposits JORC Table 1 The following table provides a summary of important assessment and reporting criteria used at Simandou Ouéléba and Pic de Fon deposits for the reporting of Mineral Resources and Ore Reserves in accordance with the Table 1 checklist in The Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2012 Edition). Criteria in each section apply to all preceding and succeeding sections. Section 1: Sampling Techniques and Data Criteria Commentary Sampling techniques • Samples for geological logging, assay, geotechnical, metallurgical and bulk density were collected via drilling. • Reverse circulation and diamond core drilling have been used at both Ouéléba and Pic de Fon deposits. • Samples were collected at 2 m intervals for assay and geological logging from both reverse circulation and diamond core drilling. • Reverse circulation samples have been collected via a number of methods (rotating or static cone splitters, and riffle splitters) to achieve a 2 kg primary sample. The samples were dried, crushed, split and pulverized to produce a pulp sample of approximately 60 g. • Diamond core drilling has used a range of bit sizes with bit size decreasing with increasing depth (from PQ to NQ, for example). • Diamond core was sawn in half with one half retained and the other half was dried, crushed, split, sieved for three size fractions (since 2008) which were pulverized to produce pulp samples of approximately 60 g. • Density, geotechnical and metallurgical samples were collected from diamond core drilling. • Geological interpretation has used a combination of geological logging, surface mapping and geochemical assay results. Drilling techniques • Drilling was predominantly reverse circulation (RC) with a lesser proportion of diamond core drilling: 69% of total drilled metres are RC at Ouéléba and 70% at Pic de Fon. • Reverse circulation drilling used two face sampling bit sizes (5 ½ inch and 5 3/8 inch). • RC drillholes are generally less than 180 m in depth and where RC drilling is used as a pre- collar for diamond drilling the RC drilling length is generally less than 150 m. • Diamond core drilling has used a range of bit sizes with the bit size decreasing with increasing hole length. Larger bit sizes (such as PQ) used for up to 180 m, a HQ (or equivalent) used for the mineralisation and for lengths greater than 180 m. A smaller size such as NQ was used for lengths beyond approximately 350 m. • The diamond core drilling has used triple tube for 40 per cent of the drilled metres and the remainder is standard tube. • The holes are drilled declined: o Ouéléba: between -44° and -90° (-77° on average) o Pic de Fon: between -43° and -90° (-70° on average). • Holes are between 16 m and 541 m in length and average 200 m for Ouéléba and 210 m for Pic de Fon. • A digital core orientation tool (Reflex™ ACT II RD) has been used since 2009 to mark the bottom-of-core orientation line. Drill sample recovery • Diamond core recovery is recorded by the geologist whilst logging the hole. Overall diamond core recovery: Ouéléba 89% and Pic de Fon 87%. • No direct recovery measurements of RC samples were performed. However, sample recovery has been assessed qualitatively by the rig geologist. In addition, primary and secondary sample weights (after splitting at the rig) have been recorded as part of the RC drilling sample workflow. • The use of boosted air was ceased in 2008 for RC drilling to maximise sample recovery. • Statistical analysis does not suggest a bias or relationship between sample recovery and grade. Logging • All diamond core and RC chip samples are logged over 2 m intervals. Quantitative logging for lithology, stratigraphy, texture and hardness is conducted using defined material type codes

Appendix 22 / 34 22 based on characterisation studies and mineralogical assessments. Colour and any additional qualitative comments are also recorded. Logging information is stored in the Rio Tinto Simandou acQuire™ database. • Each tray of core was photographed, and half core is retained in a secure storage facility. • Most diamond core drilled holes since 2008 have been geotechnically logged at the drill site before transporting the core. There have also been a number of holes which have specifically been drilled to enable more detailed logging and destructive testing of core to obtain quantitative geotechnical rock property information. A subset of holes used for geotechnical investigations have also been logged with an acoustic televiewer. • More than 70% of the holes have been geophysically logged using downhole tools for gamma trace, gamma density, resistivity and magnetic susceptibility. Sub-sampling techniques and sample preparation Diamond core: • The diamond drill core is cut in half using a core saw where the core is competent enough to be sawn or, where the core is friable, a trowel is used to select half of the material in the interval. The nominal sample interval is 2 m. • Pre-2008, and at times when the crush and screen equipment was unavailable, core was dried for 12 hours at 105°C, crushed to a 2.63 mm top size and then riffle split three times before being pulverised to a particle size that corresponds to 95% passing 106 microns. Pulp samples of approximately 60 g are taken from the pulverised samples. • Since 2008, a grade by size methodology has been used for preparing the diamond core samples to pulp samples. The core samples are dried at 105°C for at least 24 hours, crushed to a 31.5 mm top size and then screened with eight sieve sizes. The sieved fractions are combined to create three size fraction samples: <0.15 mm, between 0.15 mm and 10 mm; and >10 mm. The size fraction samples are then riffle split (to a minimum weight of 300 g) and pulverised to a particle size that corresponds to 95% passing 106 microns. Pulp samples of approximately 60 g are taken from the pulverised samples. Reverse circulation: • A nominal 2 m sample interval was used for RC drilling. • The RC samples have been collected via a number of methods targeting a 2 kg primary sample. The methods include: rotating cone splitter, cyclone and rig mounted rotating splitter, static cone and riffle splitters. • The primary RC samples are dried for 24 hours at 105°C then crushed in a jaw crusher to a top size of 2 mm, and then riffle split to a sample with a minimum weight of 300 g. The samples are pulverised to a particle size that corresponds to 95% passing 106 microns. Pulp samples of approximately 60 g are taken from the pulverised samples. Quality of assay data and laboratory tests Assay methods: • The pulp samples are sent to Ultra Trace Laboratories, an external ISO 9001 accredited independent laboratory in Perth, Western Australia for analysis. • A sub-sample of 0.68 g is used for preparation of an X-Ray fluorescence (XRF) fusion disc and whole rock analysis is completed for the following variables: Al2O3, As, Ba, CaO, Cl, Co, Cr, Cu, Fe, Pb, MgO, Mn, Ni, P, K2O, SiO2, Na, Sr, S, Sn, TiO2, V, Zn and Zr. • Loss on ignition (LOI) is measured using a thermo-gravimetric analyser at 371°C, 538°C and 1,000°C and then accumulated for total LOI using a 3 to 5 g sub-sample from the pulp sample. • The assay results of the three size fraction samples are used to back calculate a composited head grade using the weights recorded for each of the samples. The individual size assay grades, the sieve weights and the back-calculated head grades are stored in the acQuire™ database. For Ouéléba 49% of the drill core samples have been prepared using the grade- by-size process and for Pic de Fon this was 12%. QAQC of the sample preparation and assaying processes is via the following samples: • Coarse certified reference materials (CRMs) inserted into the drillhole sample sequence at a rate of one in 20 and prepared as per the regular drillhole samples. • Pulp CRMs inserted at the laboratory at the rate of approximately one in 60. • Field duplicates that are inserted at the rate of one in 20 samples. • Preparation laboratory duplicates inserted at the rate of one per drillhole. • Pulp repeats and pulp standards inserted by the laboratory at a rate of approximately one in 20 samples.

Appendix 23 / 34 23 • Analyses of the results of the coarse CRMs and pulp CRMs for the four major grade variables of iron, silica, alumina and phosphorus do not suggest a grade bias exists. Results of the QAQC indicate that there are acceptable levels of precision and accuracy to support a Mineral Resource. Verification of sampling and assaying • An analysis of a small number of twinned drillholes (RC and diamond core drillholes) suggests an immaterial bias of iron, with the assays in the diamond core drillhole being slightly higher than in the twin RC drillhole. • Field data was logged directly onto field Toughbook laptops using pre-formatted and validated logging templates, with details uploaded to the drillhole database on a daily basis as logging was completed. • Assay data was returned electronically from the laboratory and uploaded into the drillhole database. • Documented procedures exist for data management, verification and storage. Edits to the drillhole database are traceable through automatic logging by the database software. The procedures have been audited and found to be acceptable for Mineral Resource estimates. • The drill core photos are stored as image files on the site geology server and incrementally copied to the server located in the United Kingdom on a daily basis. • No adjustments have been made to the assay data. Location of data points • Drillhole collars (for 99% of the drillholes) were surveyed post drilling by licenced surveyors using differential GPS with an accuracy of ±30 mm. The remaining 1% of drillholes use planned coordinates to locate the drillhole. • Downhole surveying has been undertaken using a downhole gyroscopic tool since 2007, including attempted resurvey of earlier drillholes. The downhole gyroscopic tool has an accuracy of ±0.1° for the dip and ±1° for the azimuth. Overall, 84% of the diamond drilling metres are surveyed over the entire drillhole length but only 40% of the total RC drilling metres are downhole surveyed. Since 2011 downhole survey coverage of RC drilling metres has increased to 71%. • The grid system used for deposit surveys are in the Dabola 1981 UTM Zone 29N grid system and the surveys are considered accurate enough for the purposes of Mineral Resources and Ore Reserves estimation. • Ouéléba drill hole collar locations were converted to WGS84 / UTM Zone 29N grid. • The topographic surface is based on airborne LiDAR data collected in 2011, with an accuracy of ±0.1 m in elevation and ±0.5 m in easting and northing. The digital terrain model was created with a 4 by 4 m cell size triangulation with a 0.2 m offset decimation applied to allow mining software to use the surface. Data spacing and distribution • Drillholes are spaced irregularly due to topographic constraints. • Areas of approximately 60 by 60 m, 125 by 125 m, and 250 m have been established. There are also two small areas at Ouéléba and one small area at Pic de Fon of approximately 30 by 30 m drilling. • The drillhole spacing is sufficient to establish geological and grade continuity for Mineral Resource estimation purposes and for the Mineral Resource classification applied. • Downhole compositing of drillhole sample intervals for grade estimation purposes is discussed in Section 3. Orientation of data in relation to geological structure • Drillholes are oriented in multiple directions, due to the topography. Drillhole orientations are either vertical or in a fan arrangement drilled at varying angles, between -44° and -90°, either towards the east (approximately 37% of the drillholes) or west (approximately 32% of the drilling). • The phyllite and itabirite formations are interpreted as folded, with the axial planes of the fold hinges interpreted to dip moderately, to steeply, towards the west overall but, due to the multiple deformation phases, can locally vary. The drillhole paths have been planned to transect the geological layering at a high angle. Due to the strong folding and geochemical geometries in the deposit and the requirement for fan drilling, as a function of rig-access difficulties, many drillholes are drilled sub-parallel to the overall interpreted structural geometries. However, it is considered that there is a very low risk that sampling biases have been introduced due to the orientation of drilling.

Appendix 24 / 34 24 Sample security • The Simfer Iron Ore Project employs a security team to monitor site security. • Half of the diamond core for each drillhole is stored in a secure fenced compound. • Since 2010, the secondary RC samples have been riffle split and retained as reference samples in a secure storage facility. • RC drillhole retention pulps, of approximately 120 g, are put in small plastic bags (150 by 250 mm) with around 20 small plastic bags put in larger bags. The retention pulps are stored in a secure shipping container at site. • Prepared pulps are stored at site inside a secured shipping container. The primary pulps are sent by air freight in a secured metal container to an independent laboratory in Perth for assaying. Audits or reviews • An audit of the sample collection and pulp preparation processes was completed in 2011 by Rio Tinto Technology and Innovation. Overall, the data collection and assay data quality controls were considered to be industry-standard. • Reviews of the QAQC data were completed both internally by Rio Tinto Technology and Innovation and externally by Xstract Mining Consultants in 2011. The main finding of the reviews was, overall, there are good spatial and temporal coverage of quality control data and no clear indications of significant grade biases for key grade variables. Recommendations were also made to improve procedures with respect to a more proactive approach to QAQC results and work procedures. • A detailed external audit of the acQuire™ drillhole database was completed in 2010. The audit included review of the database structure, the loading and storage of data and checked 5% of the data (by laboratory analytical batch) against data sourced directly from the laboratory. The audit concluded that the drillhole database was structurally sound and contained valid data. Recommendations from the audit have been implemented by Rio Tinto with completion of all items by 2013. • An internal peer review was undertaken in 2021 of the Ouéléba geology model and resource estimation by relevantly experienced Rio Tinto geologists. The review concluded the model and estimation was suitable for the current study. Section 2: Reporting of Exploration Results Criteria Commentary Mineral tenement and land tenure status • The Ouéléba and Pic de Fon deposits are located within the Simfer Mining Concession (granted on 22 April 2011 by Presidential decree namely the “Décret D/2011/134/PRG/SGG portant octroi d’une concession manière à la société Simfer SA sur le Mont Simandou”) held by Simfer SA. The concession duration is 25 years (from the Effective Date of the Mine Convention), renewed automatically for a further period of 25 years followed by further 10- year periods in accordance with the applicable mining legislation, provided Simfer has complied with its obligations under its Amended and Consolidated Basic Convention between, inter alios, the Republic of Guinea and Simfer SA dated 26 May 2014, as further amended by the Mine Bipartite Convention between, inter alios, the Republic of Guinea and Simfer SA dated 10 August 2023.Thecoordinates of the are listed in the decree granting the Simfer Mining Concession. • The rail and port infrastructure to enable export of iron ore from the Simfer Iron Ore Project and WCS mine project will be co-developed as a joint venture comprising the State, WCS and Simfer Jersey with the ultimate owner and operator to be the Compagnie du Transguinéen S.A (CTG). The infrastructure will be developed pursuant to the Co- Development Convention between, inter alios, the State, CTG, Winning Consortium Simandou SAU, Winning Consortium Simandou Ports SAU, Winning Consortium Simandou Railway SAU, Simfer S.A. and Simfer InfraCo Guinée SAU dated 10 August 2023. The Co- Development Agreement remains subject to ratification by the Guinean State.

Appendix 25 / 34 25 • The ownership of Simfer SA in 2023 is as listed in the table below: JV Partners % Ownership Simfer Jersey 85% Republic of Guinea 15.00% Simfer Jersey Nominee Ltd 1 share Rio Tinto International Holdings Ltd 1 share • The ownership of Simfer Jersey Ltd in 2023 is as listed in the table below: JV Partners % Ownership Rio Tinto 53% Chalco Iron Ore Holdings Ltd 47% • The ownership of Simfer InfraCo Guinée SAU in November 2023 and as it will be following effectiveness of the Co-Development Convention and joint venture agreements is as listed in the table below: JV Partners % Ownership at November 2023 % Ownership after Co- Development Convention effective date Simfer InfraCo Ltd 100% 85.00% Republic of Guinea - 15.00% • Simfer InfraCo Ltd is 100% owned by Simfer Jersey Ltd. • The ownership of the Compagnie du Transguinéen is listed in the table below: JV Partners % Ownership Simfer InfraCo Ltd 42.5% WCS InfraCo Ltd 42.5% Republic of Guinea 15% • Areas of the Simfer mining concession sit within the Pic de Fon Classified Forest and as such one key component of the Social and Environmental Impact Assessment (SEIA) with respect to the Simfer Mine is to manage the impacts to this area and establish offset areas described in the SEIA. Exploration done by other parties • Regional mapping by French (1950s) and Chinese (1970s) technical teams identified the potential in the Simandou deposits. • All exploration information used in generating the Mineral Resources has been collected by Rio Tinto managed exploration and evaluation programs since 1997. Geology • The Pic de Fon and Ouéléba deposits are typical of supergene-enriched itabirite hosted iron ore deposits. • The deposits are located in the Simandou Range on a prominent ridge. The Simandou Range is the result of multi-phase ductile deformation represented by tight synformal fold keels and sheared antiformal structures. The ridge consists of a formation of itabirites (metamorphosed BIF) and phyllites within the Simandou Group overlying basement gneiss and amphibolite. The itabirites and phyllites have been deeply weathered and identifying stratigraphy is difficult, with the only discernible contact being that between the itabirites and phyllites.

Appendix 26 / 34 26 • The following domains have been interpreted for the itabirites: laterite, carapace, transitional mineralisation, friable hematite goethite mineralisation, friable enriched itabirite, friable poor itabirite and compact poor itabirite. • Phyllite domains have been interpreted for very weak phyllite, soil strength phyllite, weak phyllite, compact pyritic phyllite, weak quartzite and compact quartzite. • Laterite and carapace are sub-horizontal with the laterite overlying all other lithologies and the carapace overlying the mineralisation and enriched itabirite lithologies. • The itabirites and phyllites are interpreted to be folded with the axial planes of the fold hinges dipping moderately to steeply towards the west. • The high-grade mineralisation at Pic de Fon and Ouéléba is located on the top of the ridge, and typically consists of hematite-martite and hematite-goethite mineralisation respectively. Drilling has confirmed that the high-grade mineralisation extends to over 400 m from the surface. • The high-grade mineralisation at both deposits transitions downwards into a partially enriched, generally friable, itabirites and then into unenriched itabirites which also transition from friable to compact with increasing depth away from the mineralisation front. • A surface covering of weathered mineralisation typically up to 20 m to 30 m in depth is found over the high-grade mineralisation at Pic de Fon. At Ouéléba much deeper pervasive weathering is observed with a weathered carapace (goethite, clay and limonite rich) and a transitional weathering/mineralisation zone are observed over the high-grade mineralisation. These zones are typically between 30 m to 100 m thick but can be over 300 m thick in some locations. Drillhole Information Ouéléba • Summary of drilling data used for the Ouéléba resource estimate: Year Reverse circulation Diamond core Reverse circulation pre-collar and diamond core tail # Holes Metres # Holes Metres # Holes Metres 2005 23 2,013 - - - - 2006 - - 5 1,285 - - 2007 141 25,795 19 4,999 - - 2008 316 58,378 29 9,625 6 2,148 2009 - - 26 7,574 - - 2010 - - 49 10,567 - - 2011 23 3,210 41 8,582 17 4,724 2012 60 8,792 79 16,965 8 2,844 2013 - - 10 2,844 - - Total 563 98,188 258 62,441 31 9,716 • 44 additional holes (4,362 m) with no assay or geological logging, or with location uncertainty were excluded from geological modelling and grade estimation. • An additional 5 holes with no assay information were used for geological modelling but not grade estimation.

Appendix 27 / 34 27 Pic de Fon • Summary of drilling data used for the Pic de Fon resource estimate: Year Reverse circulation Diamond core # Holes Metres # Holes Metres 1999 16 1,355 - - 2000 - - 7 1,384 2001 8 970 1 156 2002 97 17,956 2 511 2003 26 5,500 - - 2006 - - 15 3,369 2007 46 10,482 35 6,773 2008 211 44,963 49 12,777 2010 - - 15 4,373 2011 - - 1 230 Total 404 81,282 125 29,573 • An additional 47 drillholes (6,975 m) were used for geological interpretation only due to holes not being sampled or having unreliable assay information. Data aggregation methods • Not relevant as exploration results are not being reported. Relationship between mineralisation widths and intercept lengths • The drillhole paths have been planned to transect the geological layering at a high angle but due to complex geometries and rig-access difficulties many drillholes are drilled sub-parallel to the overall interpreted structural geometries. • Potential differences between downhole and true thickness are mitigated by the use of three- dimensional interpretation of the stratigraphic units using the nominal 2 m samples. • No individual drill results are reported in this release. Diagrams • Plans are included in the release as below: o Figure 1 Property location map o Figure 2 Tenement location map o Figure 3 Drill hole location plan Ouéléba o Figure 4 Drill hole location plan Pic de Fon o Figures 5 to 8 Ouéléba cross sections o Figures 9 to 12 Pic de Fon cross sections Balanced reporting • Not relevant as exploration results are not being reported. Other substantive exploration data • In addition to the drilling data the following items have also been completed: metallurgical test work, structural mapping for engineering geology and geotechnical purposes, geological mapping in potential resource extension areas, surface water studies and geotechnical studies. Further work • More drilling is recommended to both improve confidence in the Mineral Resources in the more sparsely drilled Mineral Resource areas and to increase potential conversion to Ore Reserves. • Additional drilling to support the geotechnical management of pit walls and the handling of waste material is recommended. • Exploration activities to test for potential resource extensions outside the project mining areas are planned once full production is attained.

Appendix 28 / 34 28 Section 3: Estimation and Reporting of Mineral Resources Criteria Commentary Database integrity • All drilling data is stored in the Rio Tinto Simandou acQuire™ drillhole database. The system is backed up daily to a server located in Conakry. • All data is transferred electronically and checked prior to upload to the database. • In-built validation tools are used in the acQuire™ database and data loggers are used to minimise keying errors, flag potential errors and validate against internal library codes. Data that is found to be in error is investigated and corrected where possible. If the data cannot be corrected it is removed from the data set used for resource modelling and estimation. • The drillhole database used for the Mineral Resource estimation has been validated. Methods included checking of: QAQC data, duplicate drillhole locations, duplicated intervals, odd total assay values, extreme values, zero values, possible miscoded data based on location within a geodomain and assay value, sample overlaps, the total LOI against the sum of the individual LOI values and inconsistencies in length of drillhole surveyed and length of drillhole logged and sampled. Site visits • The Competent Person worked on site from 2005 to 2009 and visited the site in 2015 and again in 2022 and 2023. Geological interpretation • The geological interpretation was completed by Rio Tinto and WSP/Golder Associates. The method involved the use of surface geological mapping, surface structural measurements, downhole televiewer structural measurements, lithological logging data, assay data and downhole geophysical data. • The interpretations have evolved from 2007 to current, moving from sectional interpretations that were linked into 3D wireframes to 3D construction of wireframes using Leapfrog™ software. • The following itabirite related domains are used for the Ouéléba Mineral Resource: laterite (LAT), carapace (CAP), transitional mineralisation (TRN), friable hematite goethite mineralisation (HGF), friable hematite mineralisation (HEF), friable enriched itabirite (IRF), friable poor itabirite (IPF) and compact poor itabirite (IPC). Near surface canga (CAN) deposits are modelled from surface mapping. • The following itabirite related domains are used for the Pic de Fon Mineral Resource: compact poor itabirite (IPC), friable poor itabirite (IPF), friable enriched itabirite (IRF), friable hematite (HEF), transitional (TRN), compact hard hematite (HEC) and weathered hematite (WEA). • Phyllite domains have been interpreted at both deposits and include: very weak phyllite (PHV), soil strength phyllite (PHS), weak phyllite (PHW) and compact pyritic phyllite (PHC). In addition, weak quartzite (QTW), compact quartzite (QTC) and undifferentiated basement (BAS) units are interpreted at Ouéléba. • Grade estimation uses the interpreted geology as hard boundaries. • Confidence in the geological interpretation has been taken into account for classification of the Mineral Resources. Measured Mineral Resources are only supported in the HEF and HGF domains. • The effects of alternative interpretations have not been assessed. Dimensions • The Ouéléba deposit strikes approximately north-northeast/south-southwest with an along strike extent of 9.8 km, with a width of approximately 0.8 km at the widest. The resource mineralisation extends from surface to a vertical depth of approximately 600 m. • The Pic de Fon deposit strikes approximately north-northwest/south-southeast with an along strike extent of 7.5 km, with a width of approximately 1 km at the widest extent (approximately 0.5 km on average). The resource mineralisation extends from surface to a vertical depth of approximately 500 m. Estimation and modelling techniques • No compositing was applied to Ouéléba drillhole data. The majority of drill hole samples used a 2 m downhole interval. • The Pic de Fon drillhole data was composited to 2 m intervals downhole, which is equivalent to the sample interval for the majority of the drilling. • Statistical analyses were carried out on data by domain and assessment was made on potential outliers. No top-cuts were applied to the data. • Variography for Ouéléba were conducted using OBO (WSP/Golder proprietary) software.

Appendix 29 / 34 29 • Variography was completed for Pic de Fon using semi-automatic variogram fitting software (Centre for Computational Geostatistics VARFIT program) to maintain the correlation between variables. • The Ouéléba block model cell size was 30 m by 30 m by 6 m, with a minimum sub-cell size of 5 m by 5 m by 2 m. The parent block size in the horizontal plane is approximately half the drill spacing of 62 m by 62 m in the northern part of the deposit. The block height of 6 m corresponds to the proposed selective mining flitch height. • The Pic de Fon block model cell size was 60 m by 60 m by 12 m, with a minimum sub-cell size of 10 m by 10 m by 2 m. The parent block size in the horizontal plane is approximately half the average deposit drill spacing of 125 m by 125 m. The block height of 12 m corresponds to the proposed mining bench height. Resource modelling has considered the dimensions of drilling and probable mine equipment sizing in the choice of the blocking criteria. • Grade estimation used ordinary kriging algorithms to estimate block grades of Fe, SiO2, Al2O3, P, CaO, K2O, Total LOI, MgO, Mn, Na2O, S and TiO2. WSP/Golder Associates proprietary software was used for the grade estimation of Ouéléba and Maptek™ Vulcan™ software was used for Pic de Fon. • Hard boundaries were applied to the geology domains. Internal dilution was modelled and estimated as separate subdomain of the HGF domain. • A ‘high yield limit’, or grade-dependent restriction on a sample’s range of influence, was used in estimating manganese block grades in the domains of TRN, HGF and QTW. • For Ouéléba, kriging neighbourhood analyses were completed to determine appropriate parameters for block size, discretisation and numbers of samples. The minimum number of samples was set to 6 and the maximum number of samples to 24, with a limit of 9 samples per drillhole. Three increasing search volumes were used for grade estimation. The primary search ranges used are 375 m by 86 m by 75 m for Ouéléba. • Kriging neighbourhood analyses were completed at Pic de Fon to determine appropriate parameters for block size, discretisation and numbers of samples. The minimum number of samples was set to 6 and the maximum number of samples to 20, with a limit of 5 samples per drillhole. Three increasing search volumes were used for grade estimation. The primary search ranges used are 180 m by 120 m by 60 m. • The grade estimation was validated using: o visual comparisons between the composited drillhole data and block grades o comparisons of declustered composited drillhole global mean grades with block grades o comparing the composited drillhole and block model mean grades in northing, easting and elevation slices (grade trend charts) o The Mineral Resources were also compared with the 2021 Mineral Resource estimates. • The grade estimation and validation techniques are considered appropriate for the Mineral Resources estimates. • Recovery factors are not applied to the Mineral Resource models. Construction of the Ore Reserves model is when both recovery and dilution are incorporated. • No mining has occurred that will allow reconciliation of actual and predicted data. Moisture • All Mineral Resource tonnages are estimated and reported on a dry basis. Cut-off parameters • The Mineral Resources cut-offs for reporting are greater than or equal to 58% Fe and less than or equal to 8% Al2O3 + SiO2 and less than or equal to 0.25% P. • The decision is based on, economic analysis of the material meeting the cut-off criteria, mining continuity and market for the directly shippable product defined in these models. Mining factors or assumptions • The proposed mining operation will be open cut mining with a large annual tonnage (after initial production and ramp up). The proposed bench height is 6 m and this has been taken into account for the selection of the resource model block size for both Ouéléba and Pic de Fon. • No other mining factors or assumptions have been applied to the mineral resource model. • The ultimate shell for reporting Mineral Resources has been selected from Whittle™ software optimisation of direct ship material in the mining models for all resource categories (excluding the unclassified category).

Appendix 30 / 34 30 Metallurgical factors or assumptions • No metallurgical modifying factors have been applied given the mineralisation is of direct shipping grade and it is modelled that 100% of plant feed is recovered as product. • Processing characteristics, such as abrasiveness, are factored into the operating cost model. Environmental factors or assumptions • Drillhole samples with elevated sulphur levels have been identified in a number of the domains: o The waste material with elevated sulphur currently accounts for approximately 1% of the expected waste rock to be moved during the life of mine. o A program to test different potential waste dump mixes for this material is underway to assess potential acid forming material and sediment runoff issues with results expected in 2024. o Undertaking humidity cell (HC) tests to determine long term ARD risk. o The studies to date have used a conservative approach for the mine plan economics by segregating potentially acid forming waste into managed cells within the waste dump and with appropriate treatment facilities if required. It may be feasible to blend the low quantities of this material with other neutralising wastes. • The Social and Environmental Impact Assessment (SEIA) was completed and approved in 2012, describing the key management requirements that apply to the development of the Simfer Iron Ore Project and the associated rail and port infrastructure to be built by Simfer Jersey. This assessment has been updated to reflect the Simfer scope of the co-developed infrastructure project and to meet current leading practices, utilising modern techniques for mitigation. The SEIA including management plans and commitments has been updated based on current project design. An updated SEIA for the mine and rail spur was submitted for regulatory review in July 2023 and an update to the SEIA for the port was submitted in November 2023. Stakeholder engagement has continued since 2012 to maintain local relationships and understand the concerns of local communities, which has been supplemented by additional consultation meetings to support the ESIA updates. Social baseline studies have been updated to reflect changing societal structures, and cultural heritage studies are ongoing. Pre-clearance surveys are completed to ensure no sensitive biodiversity sites or cultural heritage are being impacted by approved works. Economic and physical displacement has been minimised through integrated engineering and social designs. Social and environmental commitments have been updated and included in the project cost model. Bulk density • Bulk dry density values were determined by using the Corelok™ system where samples, nominally 15 cm in length, are vacuum sealed and then water displacement is used to determine the density value and the porosity. • The 3,884 density samples (1,918 from Ouéléba and 1,966 from Pic de Fon) have been selected from 146 diamond drillholes since 2007. • The domains represented by the density samples are similar in representation to the domains in the resource drilling data. • The density data was statistically analysed to determine an average bulk dry density value to be used for each geology domain used in the resource model. Itabirite density values range from 2.8 to 3.3 t/m³. Phyllite density values range from 1.7 to 2.4 t/m³. Classification • The resource has been classified as Measured, Indicated and Inferred Mineral Resources. The classification is based on drill spacing, includes consideration of geological confidence, downhole survey risk, kriging variance, grade extrapolation of blocks estimated in the third search pass, blocks estimated with low numbers of samples and areas visually identified by coordinate extents as being of lower confidence. • Measured Mineral Resources are only supported in the HEF and HGF domains. • A significant number of drill holes (103) at Ouéléba did not have any downhole deviation survey, but this was not considered to pose significant positional uncertainty. Many of these are short and the longer holes are spread though out the deposit with adjacent holes not displaying significant deviation. • No areas at Pic de Fon were considered to be significantly affected by downhole survey risk to require a downgrade in the resource classification. • The distance to the nearest samples used for block grade estimation has been determined for the Inferred Mineral Resources. The block grades that were estimated using samples

Appendix 31 / 34 31 greater than 125 m are considered to be the result of grade extrapolation. The extrapolated block grades represent 12% of the Inferred Mineral Resources tonnage for Ouéléba and 14% of the Inferred Mineral Resources tonnage for Pic De Fon. Audits or reviews • The resource interpretation and estimation methodology for Pic de Fon and Ouéléba were reviewed by an external peer reviewer in 2011. Actions from the findings of that review were addressed as part of the 2012 and 2021 modelling process. • The resource estimation of Pic de Fon was completed in 2012 by Xstract. Internal peer reviews were completed at key stages during the resource estimation process by Xstract, and Rio Tinto also reviewed the output at key stages during the resource estimation process. • Coffey reviewed the Pic de Fon Minerals Resource in February 2015. They endorsed the processes used and supported the work as fit for purpose. • The updated resource model and estimation of Ouéléba was completed by WSP/Golder Associates in 2021. Internal peer reviews were completed at key stages during the resource estimation process by WSP/Golder Associates. Rio Tinto also reviewed the output at key stages during the resource estimation process. • Ouéléba 2022 resource model and estimation was reviewed internally by geologists with relevant experience from the Rio Tinto Group. Discussion of relative accuracy/ confidence • No specific geostatistical studies have been completed to estimate the local accuracy or degree of grade smoothing in the Mineral Resource estimate. • The Mineral Resource estimate has good global accuracy and a level of local accuracy that is sufficient to support mine planning studies aimed at preparing Proved and Probable Ore Reserves. • Variances to the tonnage and grade of the Mineral Resource estimate are expected with further definition (and grade control) drilling and additional density data but are not expected to significantly affect the global accuracy. • No production data is available, as mining has not commenced, to reconcile the Mineral Resource estimates. Section 4: Estimation and Reporting of Ore Reserves Criteria Commentary Mineral Resource estimate for conversion to Ore Reserves • The Mineral Resource model used as input to the mining model was the WSP/Golder Associates 2021 Mineral Resource model as identified in Section 3. The Ouéléba block model cell size was 30 m by 30 m by 6 m, with a minimum sub-cell size of 5 m by 5 m by 2 m. The parent block size in the horizontal plane is approximately half the drill spacing of 62 m by 62 m in the northern part of the deposit. The block height of 6 m corresponds to the selected mining flitch height, with two flitches within an overall 12 m bench height. • The Ore Reserve has been estimated using Measured and Indicated Mineral Resources within the final pit design. Contaminant restrictions were applied on import within the mine scheduling package to eliminate mineralised zones within the Measured and Indicated Mineral Resources that are deemed outside of desired product specifications. Site visits • The Competent Person undertook multiple extended site visits to the Simandou Project from May to December 2022. During the visit both the Ouéléba and Pic de Fon deposits were visited as well as both existing and planned facility locations. The core shed, workshop facilities, camp accommodation, office accommodation and ongoing drill sites were visited. Matters pertinent to the application of the requisite modifying factors and conversion of Mineral Resource to Ore Reserve were considered and assessed on site. • The site has road access and is readily accessible for power, water and additional infrastructure requirements. Camp facilities are in place with a current workforce involved in further geological sampling and early construction works for the project. Study Status • The Ore Reserves for the Ouéléba deposit are based upon a minimum of pre-feasibility study for the mine plan and mine design including schedule covering the life of mine within the Ouéléba deposit. The Ore Reserves are deemed technically achievable and have been tested for economic viability using input costs, metallurgical recovery and expected long term iron ore price, after due allowances for royalties. • Apparent differences may occur due to rounding.

Appendix 32 / 34 32 • Approximately 95% of the Measured and Indicated Mineral Resources within the final pit were converted to Ore Reserves with the remaining 5% being allocated to waste rock within the pit. • Material meeting the acceptance criteria for direct shipping ore production was scheduled over the life of the deposit with resulting Ore Reserves. Cut-off parameters • A global cut-off grade of 58% Fe was applied for Measured and Indicated Resources within the final pit. The material was further restricted with the rejection of material having a combined alumina plus silica grade exceeding 8%, or a phosphorous grade exceeding 0.25%. Mining factors or assumptions • The Simfer Iron Ore Project will be mined by medium-scale conventional open pit mining equipment. The mining process will include drill and blast, and conventional load and haul operations. There is a moderate proportion of free-dig material within the HEF/HGF lithology with the majority of other rock types requiring drilling and blasting. • The Ouéléba deposit will be mined with a planned annual sales export tonnage of 60 Mt. • First production is expected in 2025, ramping up over 30 months to an annualised capacity of 60 Mtpa which will be underpinned as to 18% by Proved Ore Reserves and 82% by Probable Ore Reserves. • Pursuant to the Amended and Consolidated Basic Convention, as amended by the Mine Bipartite Agreement, Simfer will seek to increase production to up to 100 Mtpa (subject to the commensurate increase in the rail and port infrastructure capacity and completion of a feasibility study, which will include consideration of the Pic de Fon resource. • Mining will be carried out using staged advances within the LOM final pit. The mining faces will be mined on 6 m flitches within a 12 m mining bench using hydraulic excavators in backhoe configuration supported by rigid dump trucks, track dozers, rubber tyred dozers, motor grades, and drill rigs. No unconventional or novel equipment or mining methods are included within the mining operational plan. • The pit slopes have been assessed from a geotechnical investigation by WSP/Golder Associates with the phyllite material accommodated by shallower slope angles. De-watering of the pit below the water table has been allowed for with 100 m sub-horizontal drill holes spaced at 10 m wide spacing every 36 m vertical along the pit edges within the final pit. • Grade control drilling and sampling of combined reverse circulation and blast holes will precede ore identification and ore mark out on a flitch/bench basis. • The mining block model has assumed that sufficient account for estimated ore loss and dilution has been incorporated into the Mining Model with the regularization from the 5 m by 5 m by 2 m sub celled geology model to a 20 m by 40 m by 6 m regularised block size within the Mining Model. Moderate bulk mining (minimal selectivity) will be used with 600 t excavators feeding 220 t rigid body haul trucks. • A minimum mining width of 50 m was assumed, with the exception of selected areas at the base of the mining panels where a minimum mining width of 35 m has been allowed with single-lane access. • Inferred Mineral Resources within the final limit design have been considered as waste material. There is a relatively low proportion of Inferred Resource material within the final pit design equating to some 13% of total mineralized material within the product specification criteria inside the pit limit. • Mining infrastructure requirements have been identified by Rio Tinto and will be incorporated as part of the mining project build scope. Metallurgical factors or assumptions • The Ouéléba ore is a low impurity high-grade Direct Shipping Ore (DSO) with an average export grade of some 65% Fe. An allowance of 0.5% fines losses has been incorporated within the product handling system from crusher through to ship loading, this percentage of ore loss estimate has been provided by Rio Tinto based upon experience at multiple direct shipping operations. • Current work is underway to test the viability of producing a dual product including blast furnace and direct reduction feed. Environmental factors or assumptions • Capacity building with local organisations is ongoing, including training of Classified Forest teams and supporting biodiversity awareness programs in local communities.

Appendix 33 / 34 33 • Social and environmental commitments have been updated and included in the project cost model. Infrastructure • The site has road access and is readily accessible for power, water, and additional infrastructure requirements. Camp facilities are in place with a current workforce involved in further geological sampling and early construction works for the project. Planned expansion of the camp facilities including a dedicated airstrip are planned for the project construction phase. • The rail and port infrastructure to be built pursuant to the Co-development Agreement and owned and operated by the Compagnie du Transguinéen includes a purpose-built port facility to be constructed at Morebaya estuary which will facilitate the export of the iron ore from the Simfer Mine and WCS Mine. The port will have a capacity of 120 Mtpa and will be shared between Simfer and WCS as fundamental customers. The port will be accessed by a purpose built approximately 536 km main rail line with spurs to connect the Simfer Mine (68 km) and WCS Mines (16 km) to the port at Morebaya. The rail will have initial capacity of up to 120 Mtpa. Studies to confirm the ability to expand the rail and port infrastructure to 160 Mtpa to enable the expansion of the Simfer Mine from 60 Mtpa to 100 Mtpa will be undertaken in accordance with the Co-Development Convention and Mine Bipartite Convention. Costs • Costs were provided by Rio Tinto for the ‘down-stream’ processing costs of the export ore. • Operating costs were compiled from quotations, database and a variety of sources and compared against existing and planned west African mining operations. • Mining costs were built up from first principles by WSP/Golder Associates using vendor quotations and current databases to derive contractor equivalent rates. The estimated base mining cost used an incremental cost increase with depth for both above crusher elevation and below crusher elevation to account for increased haulage costs. • All costs were determined on a US dollar (US$) basis. • The mining operation has been costed based upon an owner mining operation, with heavy mobile machinery costs maintained under an OEM repair and maintenance agreement. Revenue factors • An allowance of 3.5% for iron ore royalties payable to the Government of Guinea, consistent with the Simfer Mine Convention, has been allowed for in the selling price along with an estimated deduction equivalent to the provided shipping costs from the port of Conakry to southern China. The life of mine pit shell was selected based upon a Revenue Factor of 0.65 representing the estimated maximum discounted average value point within the nested pit shells. Market Assessment • Iron ore is a readily traded commodity, and no specific market study has been carried out. The World Bank Iron Ore historical price using a 62% Fe CFR (Iron Ore Pricing including the cost of freight and insurance) with a deduction equivalent to the provided shipping costs, was used to estimate the three-year trailing average Iron Ore price for the Ouéléba direct shipping ore which was confirmed to be below the ruling spot price at the time of the estimation. Economic • A feasibility study has been undertaken on the project against the primary value drivers using a discount factor of 10%. The project was assessed against changes in mining costs, changes in downstream processing and handling costs, capital costs and Iron Ore pricing. The project returns a positive discounted cash-flow under all conditions tested. Social Stakeholder engagement has continued since 2012 to maintain local relationships and understand the concerns of local communities, which has been supplemented by additional consultation meetings to support the ESIA updates. Social baseline studies have been updated to reflect changing societal structures, and cultural heritage studies are ongoing. Pre-clearance surveys are completed to ensure no sensitive biodiversity sites or cultural heritage is being impacted by approved works. Economic and physical displacement has been minimised through integrated engineering and social designs. Social and environmental commitments have been updated and included in the project cost model. • Stakeholder engagement has continued since 2012 to maintain local relationships and understand the significant concerns of local communities. Social baseline studies have been

Appendix 34 / 34 34 conducted to reflect changing societal structures, and cultural heritage studies have commenced. Pre-clearance surveys have been completed for for sensitive biodiversity and cultural heritage to minimise potential impacts from approved works. • Economic and physical displacement has been minimised through integrated engineering and social designs. • Social and environmental commitments have been updated and included in the project cost model. Other • There are no known current impediments to the progression of the project or foreseen encumbrances to the granting of a licence to operate. • Simfer has signed agreements with the State and Winning Consortium Simandou (WCS), the owner of Simandou blocks 1 & 2 deposits (WCS Iron Ore Project), to enable co-development of the rail and port infrastructure for the Simfer Iron Ore Project and the WCS Iron Ore Project. The Co-Development Convention, which adapts the along with bipartite amendments for each of the Simfer and WCS Mine Conventions to amend the existing investment frameworks of Simfer and WCS. These conventions provide the legal framework for infrastructure co-development, establishing the fiscal regime and the access arrangements (including tariff) that will apply for use of the infrastructure by the Simfer and WCS as foundation customers. These conventions require ratification by the State and are conditional on satisfaction of certain conditions including regulatory approvals. Finalisation of the joint venture agreements is ongoing and closing of Simfer Jersey’s investment in the WCS entities is remain subject to conditions including regulatory approvals. • Discussions with the regulatory authorities and submission of the mine plan and closure plan to the Guinean authorities are continuing as part of the feasibility study and execution plan.

EX-99.7

Notice to ASX/LSE Simandou iron ore project update 6 December 2023 Rio Tinto is providing an update today at its Investor Seminar on the world class Simandou iron ore project in Guinea, which is being progressed in partnership with CIOH, a Chinalco-led consortium, Winning Consortium Simandou1 (WCS), Baowu and the Republic of Guinea. Simandou is the world’s largest untapped high-grade iron ore deposit. The Simfer joint venture’s2 mine concession held an estimated Total Mineral Resource as at 31 December 2022 of 2.8 billion tonnes, of which Rio Tinto is today reporting the conversion of an estimated 1.5 billion tonnes to Ore Reserves that support a mine life of 26 years, with an average grade of 65.3% iron3 and low impurities. Rio Tinto is also reporting Mineral Resources exclusive of Ore Reserves of 1.4 billion tonnes at 66.1% Fe and low impurities. Rio Tinto estimates that its initial4 share of capital expenditure to develop the Simfer mine and the co- developed rail and port infrastructure project is approximately $6.2 billion5. Rio Tinto Executive Committee lead for Guinea and Copper Chief Executive Bold Baatar said: “We are continuing to work closely with the Government of Guinea, Chinalco, Baowu and WCS towards full sanction of this world class project by all partners. “Simandou will deliver a significant new source of high-grade iron ore that will strengthen Rio Tinto’s portfolio for the decarbonisation of the steel industry, along with trans-Guinean rail and port infrastructure that can make a significant contribution to the country’s economic development.” In what will be the largest greenfield integrated mine and infrastructure investment in Africa, more than 600 kilometres of new multi-use rail together with port facilities will be co-developed by the Republic of Guinea, Simfer and WCS. This will allow the export of up to 120 million tonnes per year of mined iron ore by Simfer and WCS from their respective Simandou mining concessions6 in the southeast of the country.7 1 WCS is currently a consortium of Singaporean company, Winning International Group (50%), Weiqiao Aluminium (part of the China Hongqiao Group) (50%) and United Mining Supply Group (nominal shareholding). WCS is the holder of Simandou North Blocks 1 & 2 (with the Government of Guinea holding a 15% interest in the mining vehicle and WCS holding 85%) and associated infrastructure. Baowu Resources has entered into an agreement to acquire a 49% share of WCS mine and infrastructure projects through a Baowu-led consortium, subject to conditions including regulatory approvals. In the case of the mine, Baowu has an option to increase to 51% during operations. 2 Simfer Jersey Limited is a joint venture between the Rio Tinto Group (53%) and Chalco Iron Ore Holdings Ltd (CIOH) (47%),a Chinalco-led joint venture of leading Chinese SOEs (Chinalco (75%), Baowu (20%), China Rail Construction Corporation (2.5%) and China Harbour Engineering Company (2.5%)). Simfer S.A. is the holder of the mining concession covering Simandou Blocks 3 & 4, and is owned by the Guinean State (15%) and Simfer Jersey Limited (85%). Simfer Infraco Guinée S.A.U. will deliver Simfer’s scope of the co-developed rail and port infrastructure, and is, on the date of this notice, a wholly-owned subsidiary of Simfer Jersey Limited, but will be co-owned by the Guinean State (15%) after closing of the co-development arrangements. 3 Refer to “Simandou Mineral Resources and Ore Reserves” section at page 4 below. 4 A true-up mechanism will apply between Simfer and WCS (as defined below) to equalise their out of pocket costs of constructing the co-developed rail and port infrastructure. 5 Estimated numbers, subject to approval by the Simfer board and government authorities. 6 WCS holds the mining concession for Blocks 1 and 2, while Simfer SA holds the mining concession for blocks 3 and 4. Simfer and WCS will independently develop their mines. 7 Co-development of the rail and port infrastructure remains subject to a number of conditions, including regulatory approvals in Guinea and China, the entry into a number of legal agreements, ratification of the investment framework for co-development by the Republic of Guinea, and agreement between Simfer, WCS and the Republic of Guinea regarding the budget for the rail and port infrastructure. EXHIBIT 99.7

Notice to ASX/LSE 2 / 7 The co-developed infrastructure capacity and associated cost will be shared equally between Simfer, which will develop, own and operate a 60 million tonne per year8 mine in blocks 3 and 4 of the Simandou Project, and WCS, which is developing blocks 1 and 2. Under the co-development arrangement, Simfer and WCS will deliver separate infrastructure scopes to leverage expertise9. Simfer will construct the approximately 70 kilometre Simfer spur rail line and a 60 million tonne per year transhipment vessel (TSV) port, while WCS will construct the dual track approximately 536 kilometre main rail line, the approximately 16 kilometre WCS spur rail line and a 60 million tonne per year barge wharf. Once complete, all co-developed infrastructure and rolling stock will be transferred to and operated by the Compagnie du Transguinéen (CTG) joint venture, in which Simfer and WCS each hold a 42.5% equity stake and the Guinean State a 15% equity stake10. First production from the Simfer mine is expected in 2025, ramping up over 30 months to an annualised capacity of 60 million tonnes per year (27 million tonnes Rio Tinto share). The mine will initially deliver a single fines product before transitioning to a dual fines product of blast furnace and direct reduction ready ore. Simfer's initial capital funding requirement for the Simandou project is estimated to be approximately $11.6 billion, of which Rio Tinto’s share is approximately $6.2 billion, broken down as follows5. US dollars in billions (nominal terms) Simfer capex11 Rio Tinto share Mine and TSVs, owned and operated by Simfer Development of an initial 60Mt/a mine at Simandou South (blocks 3 & 4), to be constructed by Simfer $5.1 $2.7 Co-developed infrastructure, owned and operated by CTG once complete Simfer scope (funded 100% by Simfer during construction) Rail: a 70 km rail-spur from Simfer mine to the mainline, including rolling stock Port: construction of a 60Mt/a TSV port $3.5 $1.9 WCS scope (funded 34% by Simfer during construction) Port and rail infrastructure including an approximately 552 km trans-Guinean heavy haul rail system, comprised of a 536 km mainline and a 16 km WCS rail spur. $3.0 $1.6 An IRR in the low double digits12 is anticipated for the combined Simfer mine and the co-developed infrastructure through ownership of CTG. Rio Tinto’s share of capital investment remaining to be spent from 1 January 2024 is expected to be $5.7 billion. Rio Tinto’s expected funding requirements for 2024 and 2025, are included in its share of capital investment guidance for this period, with project funding expected to extend beyond this timeframe. 8 The estimated annualised capacity of approximately 60 million dry tonnes per annum iron ore for the life of mine schedule is underpinned as to 18% by Proved Ore Reserves and 82% by Probable Ore Reserves as set out in the Table 1 Release referred to in the footnote below. Rio Tinto confirms that all material assumptions underpinning the production target in the Table 1 Release continue to apply and have not materially changed. 9 Simfer will hold 34% of the WCS-Baowu InfraCo during construction. 10 The ownership of the rail and port infrastructure will transfer from CTG to the Guinean State after a 35 year Operations Period, with Simfer retaining access rights on a non-discriminatory basis and at least equivalent to all Third Party Users. 11 Subject to adjustment as described in Footnote 1. 12 11 to 13% (post-tax, real basis). Based on Wood Mackenzie and CRU average pricing for iron ore (65% grade), with a premium applied for DR product.

Notice to ASX/LSE 3 / 7 Rio Tinto expects its full year expenditure for 2023 to be around $0.9 billion to progress critical path works, including around $0.4 billion to be funded by CIOH after receiving Chinese regulatory approvals. Full sanction of the project by the Rio Tinto Board is subject to remaining conditions being met, including joint venture partner approvals and regulatory approvals from China and Guinea. Further details on the Simandou project can be found in the 2023 Investor Seminar presentation at www.riotinto.com/invest.

Notice to ASX/LSE 4 / 7 Simandou Mineral Resources and Ore Reserves13 Rio Tinto is reporting that the Proved Ore Reserves estimate for the Ouéléba deposit at Simandou contains 273 Mt at 66.4% Fe, 1.0% SiO2, 1.2% Al2O3 and 0.07% P and the Probable Ore Reserves estimate contains 1,226 Mt at 65.0% Fe, 0.9% SiO2, 1.8% Al2O3 and 0.10% P. This Ore Reserves estimate has been made by the Competent Person and reported in accordance with the JORC Code as required by Simfer’s Mining Convention. We note that, consistent with the JORC Code, some elements are at pre-feasibility level and work continues to refine all elements to feasibility level consistent with Rio Tinto’s global practice. Rio Tinto is also reporting Mineral Resources exclusive of Ore Reserves for the Ouéléba and Mineral Resources for Pic de Fon deposits at Simandou of 1,360 Mt at 66.1% Fe, 1.5% SiO2, 1.5% Al2O3 and 0.06% P consisting of Measured Mineral Resources of 153 Mt at 67.0% Fe, Indicated Mineral Resources of 460 Mt at 66.2% Fe and Inferred Mineral Resources of 746 Mt at 65.8% Fe. The Mineral Resources cut-off for reporting is Fe greater than or equal to 58% and Al2O3 + SiO2 less than or equal 8% and P less than or equal to 0.25%. The declaration of the 1,499 Mt Ore Reserves estimate is as a result of the conversion of 1,469 Mt of undiluted Mineral Resources, inclusive of dilution, at Ouéléba. Mineral Resources and Ore Reserves are quoted on a 100% basis. Rio Tinto ownership percentage is 45.05%. 13 These Mineral Resources and Ore Reserves have been reported in accordance with the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, 2012 and the ASX Listing Rules in a release dated 6 December 2023 titled “Release of Mineral Resource and Ore Reserve Estimates for Simandou” (Table 1 Release) which is available on Rio Tinto's website at resources & reserves (riotinto.com). The Competent Person responsible for the information in that release that relates to Mineral Resources is Kaye Tindale, a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Competent Person responsible for the information in that release that relates to Ore Reserves is Michael Apfel, a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). Rio Tinto confirms that it is not aware of any new information or data that materially affects the information included in the Table 1 Release, that all material assumptions and technical parameters underpinning the estimates in the Table 1 Release continue to apply and have not materially changed, and that the form and context in which the Competent Persons’ findings are presented have not been materially modified.

Notice to ASX/LSE 5 / 7 Mineral Resources and Ore Reserves declaration A tabulation of the update to the Mineral Resources at Simandou is provided in Table A. A tabulation of the new Ore Reserves at Simandou is provided in Table B. Table A Simandou Mineral Resources as at 6 December 2023(b) (c) Likely mining method(a) Total Measured and Indicated Mineral Resources Measured Mineral Resources Indicated Mineral Resources as at 6 December 2023 Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI O/P 153 67.0 1.9 1.1 0.04 1.1 460 66.2 1.8 1.5 0.05 1.9 613 66.4 1.8 1.4 0.05 1.7 Likely mining method(a) Total Mineral Resources Rio Tinto Interest Total Mineral Resources Inferred Mineral Resources as at 6 December 2023 as at 31 December 2022 Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI % Mt % Fe % SiO2 % Al2O3 % P % LOI O/P 746 65.8 1.3 1.6 0.07 2.8 1,360 66.1 1.5 1.5 0.06 2.3 45.05 2,830 65.8 1.2 1.5 0.08 3.0 (a) Likely mining method: O/P = open pit (b) Mineral Resources of iron ore are stated on a dry in situ weight basis (c) Simandou Mineral Resources tonnes decreased due to conversion of Resources to Reserves following completion of the feasibility study for Ouéléba Table B Simandou Ore Reserves as at 6 December 2023 (b) (c) Type of mine(a) Total Ore Reserves Rio Tinto Interest Rio Tinto Share Marketable product Proved Ore Reserves Probable Ore Reserves As at 6 December 2023 (d) (e) Tonnage Grade Tonnage Grade Tonnage Grade Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI Mt % Fe % SiO2 % Al2O3 % P % LOI % Mt O/P 273 66.4 1.0 1.2 0.07 2.5 1,226 65.0 0.9 1.8 0.10 3.9 1,499 65.3 0.9 1.7 0.09 3.7 45.05 675 (a) Type of mine: O/P = open pit (b) Reserves of iron ore are reported on a dry weight basis and shown as recoverable Reserves of marketable product after accounting for all mining and processing losses. (c) Simandou iron ore Reserves tonnes are reported for the first time since 2016 (d) Only Measured and Indicated Resources have been considered in the conversion of Mineral Resources to Ore Reserves after the application of modifying factors (e) Simandou Ore Reserves relates to the Ouéléba portion only of the Simfer mine (blocks 3 & 4)

Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 LEI: 213800YOEO5OQ72G2R82 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement contains inside information. This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary.

Notice to ASX/LSE 7 / 7 riotinto.com

EX-99.8

Notice to ASX Investor Seminar presentation 6 December 2023 Attached is the presentation to be given at the investor seminar today in Sydney at 4.00pm (AEDT) / 5:00am (GMT) by Rio Tinto Chief Executive Jakob Stausholm and other executives. The presentation slides and the live webcast can also be accessed at https://www.riotinto.com/en/invest/investor-seminars. EXHIBIT 99.8

Notice to ASX 2 / 2 Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary. riotinto.com

©2023, Rio Tinto, All Rights Reserved 2 Cautionary and supporting statements This presentation has been prepared by Rio Tinto plc and Rio Tinto Limited (together with their subsidiaries, “Rio Tinto”). By accessing/attending this presentation you acknowledge that you have read and understood the following statement. Forward-looking statements This presentation includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts included in this report, including, without limitation, those regarding Rio Tinto’s financial position, business strategy, plans and objectives of management for future operations (including development plans and objectives relating to Rio Tinto’s products, production forecasts and reserve and resource positions), are forward-looking statements. The words “intend”, “aim”, “project”, “anticipate”, “estimate”, “plan”, “believes”, “expects”, “may”, “should”, “will”, “target”, “set to” or similar expressions, commonly identify such forward-looking statements. Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Rio Tinto, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements, particularly in light of the current economic climate and the significant volatility, uncertainty and disruption arising in connection with the Ukraine conflict. Such forward-looking statements are based on numerous assumptions regarding Rio Tinto’s present and future business strategies and the environment in which Rio Tinto will operate in the future. Among the important factors that could cause Rio Tinto’s actual results, performance or achievements to differ materially from those in the forward-looking statements include, but are not limited to: an inability to live up to Rio Tinto’s values and any resultant damage to its reputation; the impacts of geopolitics on trade and investment; the impacts of climate change and the transition to a low-carbon future; an inability to successfully execute and/or realise value from acquisitions and divestments; the level of new ore resources, including the results of exploration programmes and/or acquisitions; disruption to strategic partnerships that play a material role in delivering growth, production, cash or market positioning; damage to Rio Tinto’s relationships with communities and governments; an inability to attract and retain requisite skilled people; declines in commodity prices and adverse exchange rate movements; an inability to raise sufficient funds for capital investment; inadequate estimates of ore resources and reserves; delays or overruns of large and complex projects; changes in tax regulation; safety incidents or major hazard events; cyber breaches; physical impacts from climate change; the impacts of water scarcity; natural disasters; an inability to successfully manage the closure, reclamation and rehabilitation of sites; the impacts of civil unrest; the impacts of the Ukraine conflict; breaches of Rio Tinto’s policies, standard and procedures, laws or regulations; trade tensions between the world’s major economies; increasing societal and investor expectations, in particular with regard to environmental, social and governance considerations; the impacts of technological advancements; and such other risks identified in Rio Tinto’s most recent Annual Report and accounts in Australia and the United Kingdom and the most recent Annual Report on Form 20-F filed with the United States Securities and Exchange Commission (the “SEC”) or Form 6-Ks furnished to, or filed with, the SEC. Forward-looking statements should, therefore, be construed in light of such risk factors and undue reliance should not be placed on forward-looking statements. These forward-looking statements speak only as of the date of this report. Rio Tinto expressly disclaims any obligation or undertaking (except as required by applicable law, the UK Listing Rules, the Disclosure Guidance and Transparency Rules of the Financial Conduct Authority and the Listing Rules of the Australian Securities Exchange) to release publicly any updates or revisions to any forward-looking statement contained herein to reflect any change in Rio Tinto’s expectations with regard thereto or any change in events, conditions or circumstances on which any such statement is based. Nothing in this presentation should be interpreted to mean that future earnings per share of Rio Tinto plc or Rio Tinto Limited will necessarily match or exceed its historical published earnings per share. Past performance cannot be relied on as a guide to future performance. Disclaimer Neither this presentation, nor the question and answer session, nor any part thereof, may be recorded, transcribed, distributed, published or reproduced in any form, except as permitted by Rio Tinto. By accessing/ attending this presentation, you agree with the foregoing and, upon request, you will promptly return any records or transcripts at the presentation without retaining any copies. This presentation contains a number of non-IFRS financial measures. Rio Tinto management considers these to be key financial performance indicators of the business and they are defined and/or reconciled in Rio Tinto’s annual results press release, Annual Report and accounts in Australia and the United Kingdom and/or the most recent Annual Report on Form 20-F filed with the SEC or Form 6-Ks furnished to, or filed with, the SEC. Reference to consensus figures are not based on Rio Tinto’s own opinions, estimates or forecasts and are compiled and published without comment from, or endorsement or verification by, Rio Tinto. The consensus figures do not necessarily reflect guidance provided from time to time by Rio Tinto where given in relation to equivalent metrics, which to the extent available can be found on the Rio Tinto website. By referencing consensus figures, Rio Tinto does not imply that it endorses, confirms or expresses a view on the consensus figures. The consensus figures are provided for informational purposes only and are not intended to, nor do they, constitute investment advice or any solicitation to buy, hold or sell securities or other financial instruments. No warranty or representation, either express or implied, is made by Rio Tinto or its affiliates, or their respective directors, officers and employees, in relation to the accuracy, completeness or achievability of the consensus figures and, to the fullest extent permitted by law, no responsibility or liability is accepted by any of those persons in respect of those matters. Rio Tinto assumes no obligation to update, revise or supplement the consensus figures to reflect circumstances existing after the date hereof.

©2023, Rio Tinto, All Rights Reserved 3 Cautionary and supporting statements (cont.) Oyu Tolgoi - Production Targets The 500ktpa copper production target (stated as recoverable metal) for the Oyu Tolgoi underground and open pit mines for the years 2028 to 2036 referenced in slides 59 and 60 and the production profiles for the Oyu Tolgoi underground and open pit mines shown in slide 61 were previously reported in a release to the Australian Securities Exchange (ASX) dated 11 July 2023 “Investor site visit to Oyu Tolgoi copper mine, Mongolia”. All material assumptions underpinning that production target and those production profiles continue to apply and have not materially changed. Copper portfolio - Mineral Resources and Ore Reserves All Mineral Resources and Ore Reserves referenced on slide 59 are based on the Mineral Resources and Ore Reserves as reported in accordance with the Australasian Code for Reporting of Exploration Results, Minerals Resources and Ore Reserves, 2012 Edition (JORC Code) and the ASX Listing Rules in Rio Tinto’s 2022 Annual Report released to the ASX on 24 February 2023 (Rio Tinto's 2022 Annual Report) and available at riotinto.com. The total Oyu Tolgoi Mineral Resources referenced on slide 59 comprise 83 Mt @ 1.44% Cu and 0.53 g/t Au Measured Mineral Resources, 608 Mt @ 1.18% Cu and 0.39 g/t Au Indicated Mineral Resources and 3,688 Mt @ 0.59% Cu and 0.29 g/t Au Inferred Mineral Resources for a total of 4,380 Mt @ 0.69% Cu and 0.31 g/t Au Mineral Resources. The total Oyu Tolgoi Ore Reserves referenced on slide 59 comprise 246 Mt @ 0.53% Cu and 0.39 g/t Au Proved Ore Reserves and 903 Mt @ 0.97% Cu and 0.28 g/t Au Probable Ore Reserves for a total of 1,149 Mt @ 0.87% Cu and 0.30 g/t Au Ore Reserves. The Competent Person responsible for the information in the 2022 Annual Report that relates to Oyu Tolgoi Mineral Resources is Oyunjargal Dendev, who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Competent Persons responsible for the information in the 2022 Annual Report that relates to Oyu Tolgoi Ore Reserves are Barry Ndlovu and Nathan Robinson, both of whom are Members of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Escondida Mineral Resources referenced on slide 59 comprise 692 Mt @ 0.48% Cu Measured Mineral Resources, 2,871 Mt @ 0.51% Cu Indicated Mineral Resources and 15,758 Mt @ 0.50% Cu Inferred Mineral Resources for a total of 19,321 Mt @ 0.50% Cu Mineral Resources. The Escondida Ore Reserves referenced on slide 59 comprise 4,640 Mt @ 0.61% Cu Proved Ore Reserves and 2,030 Mt @ 0.55% Cu Probable Ore Reserves for a total of 6,670 Mt @ 0.59% Cu Ore Reserves. The Competent Person responsible for the information in the 2022 Annual Report that relates to Escondida Mineral Resources is Rodrigo Maureira, who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Competent Person responsible for the information in the 2022 Annual Report that relates to Escondida Ore Reserves is Francisco Barrera Vergara, who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Resolution Mineral Resources referenced on slide 59 comprise 724 Mt of Indicated Mineral Resources @ 1.89% Cu and 1,134 Mt Inferred Mineral Resources @ 1.28% Cu for a total of 1,859 Mt @ 1.52% Cu Mineral Resources. The Competent Persons responsible for the information in the 2022 Annual Report that relates to Resolution Mineral Resources are Hamish Martin, Joanna Marshall and Adam Schwarz, whom are all Members of the Australasian Institute of Mining and Metallurgy (MAusIMM). The La Granja Mineral Resources referenced on slide 59 comprise 130 Mt of Indicated Mineral Resources @ 0.85 and 4,190 Mt Inferred Mineral Resources @ 0.50% Cu for a total of 4,320 Mt @ 0.51% Cu Mineral Resources. The Competent Person responsible for the information in the 2022 Annual Report that relates to La Granja Mineral Resources is Joanna Marshall, who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). Rio Tinto confirms that it is not aware of any new information or data that materially affects the information included in the 2022 Annual Report, that all material assumptions and technical parameters underpinning the estimates in the 2022 Annual Report continue to apply and have not materially changed, and that the form and context in which the Competent Persons’ findings are presented have not been materially modified. Mineral Resources are reported in addition to Ore Reserves. Mineral Resources and Ore Reserves are reported on a 100% basis. Rhodes Ridge - Mineral Resources​ The Mineral Resources reported for the Rhodes Ridge Joint Venture between Rio Tinto (50 per cent) and Wright Prospecting Pty Ltd (50 per cent) on slide 67 form part of the Pilbara Mineral Resource estimates reported in accordance with the JORC Code and the ASX Listing Rules in Rio Tinto’s 2022 Annual Report. These Mineral Resources are not materially different to the breakdown of the Rhodes Ridge Mineral Resources reported in Rio Tinto’s 2020 Annual Report released to the ASX on 22 February 2021. The Competent Persons responsible for reporting these Mineral Resource estimates were Mr P Savory, who is a Fellow of The Australasian Institute of Mining and Metallurgy, and Ms N Brajkovich, Mr C Kyngdon, Mr M Judge and Ms A Latscha who are Members of The Australasian Institute of Mining and Metallurgy. Rhodes Ridge contains 6.8 billion tonnes of Mineral Resources at an average grade of 61.6% Fe; comprising 0.8 billion tonnes of Indicated Mineral Resources at an average grade of 62.4% Fe and 6.0 billion tonnes of Inferred Mineral Resources at an average grade of 61.5% Fe. These Mineral Resources include: • 0.6 billion tonnes of high grade Brockman Indicated Mineral Resources at an average grade of 63.9% Fe and 0.03 billion tonnes of high grade Detrital Indicated Mineral Resources at an average grade of 61.3% Fe. • 5.3 billion tonnes of high grade Brockman, Marra Mamba and Detrital Inferred Mineral Resources at an average grade of 62.2% Fe. Rio Tinto confirms that it is not aware of any new information or data that materially affects the information included in the 2022 Annual Report, that all material assumptions and technical parameters underpinning the estimates in the 2022 Annual Report continue to apply and have not materially changed, and that the form and context in which the Competent Persons’ findings are presented have not been materially modified. Mineral Resources are quoted on a 100 per cent basis, as dry in-situ tonnes.

©2023, Rio Tinto, All Rights Reserved 4 Cautionary and supporting statements (cont.) Simandou - Mineral Resources and Ore Reserves Simandou Mineral Resources and Ore Reserves reference on slides 74 and 98 have been reported in accordance with the JORC Code and the ASX Listing Rules in a release dated 6 December 2023 titled “Release of Mineral Resource and Ore Reserve Estimates for Simandou” (Table 1 Release) which is available on Rio Tinto's website at resources & reserves (riotinto.com). The Simandou Mineral Resources comprise 0.1 Bt @ 67.1% Fe of Measured Mineral Resources, 0.4 Bt @ 66.2% Fe of Indicated Mineral Resources, and 0.8 Bt @ 65.8% Fe of Inferred Mineral Resources. The Simandou Ore Reserves comprise 0.3 Bt @ 66.4% Fe of Proved Ore Reserves and 1.2 Bt @ 65.0% Fe of Probable Ore Reserves. The Competent Person responsible for the information in the Table 1 Release that relates to Mineral Resources is Kaye Tindale, a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). The Competent Person responsible for the information in that release that relates to Ore Reserves is Michael Apfel, a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM). Rio Tinto confirms that it is not aware of any new information or data that materially affects the information included in the Table 1 Release, that all material assumptions and technical parameters underpinning the estimates in the Table 1 Release continue to apply and have not materially changed, and that the form and context in which the Competent Persons’ findings are presented have not been materially modified. Mineral Resources are reported in addition to Ore Reserves. All Mineral Resources and Ore Reserves are reported on a 100% basis. Simandou - Production Targets The estimated annualised capacity of approximately 60 million dry tonnes per annum iron ore for the life of mine schedule referenced in slides 74, 76, 78 and 98 is underpinned as to 18% by Proved Ore Reserves and 82% by Probable Ore Reserves as set out in the Table 1 Release. Rio Tinto confirms that all material assumptions underpinning the production target in the Table 1 Release continue to apply and have not materially changed. The financial forecasts shown on slide 73 and 98 are based on this life of mine production target. Mineral Resources and Ore Reserves – Global Iron Ore portfolio Rio Tinto’s Iron Ore Mineral Resources and Ore Reserves reported as part of Rio Tinto’s global portfolio on slide 74 include Simandou as shown in the Simandou note on this slide (categorised as “>65% Fe”), together with the Iron Ore Company of Canada (IOC) and Pilbara Operations as reported in Rio Tinto’s 2022 Annual Report. The 28 Bt of Mineral Resources comprise the Simandou Mineral Resources plus: from IOC (categorised as “>65% Fe” due to the ability to upgrade the feed) 0.2 Bt @ 40.8% Fe of Measured Mineral Resources, 0.7 Bt @ 38.5% Fe of Indicated Mineral Resources, and 0.8 Bt @ 38.3% Fe of Inferred Mineral Resources (for which the Competent Persons were M McDonald (PEGNL), B Power (PEGNL), and R Way (PEGNL)); and from the Pilbara Operations (with all Boolgeeda, Brockman Process Ore, Channel Iron Deposit and Detrital Mineral Resources categorised as “<61% Fe”, and all Brockman and Marra Mamba Mineral Resources categorised as “>61% Fe”) 1.8 Bt @ 59.4% Fe of Measured Mineral Resources, 4.5 Bt @ 60.1% Fe of Indicated Mineral Resources, and 18.6 Bt @ 59.7% Fe of Inferred Mineral Resources (for which the Competent Persons were N Brajkovich (AusIMM), P Savory (AusIMM), M Judge (AusIMM), A Latscha (AusIMM) and C Kyngdon (AusIMM)). The 5 Bt of Ore Reserves comprise the Simandou Ore Reserves plus: from IOC (categorised as “>65% Fe” due to the ability to upgrade the feed) 0.3 Bt @ 65.0% Fe of Proved Ore Reserves and 0.2 Bt @ 65.0% Fe of Probable Ore Reserves (for which the Competent Persons were R Williams (PEGNL) and P Ziemendorf (AusIMM)); and from the Pilbara (with all Pisolite Ore Reserves categorised as “<61% Fe”, and all Brockman and Marra Mamba Ore Reserves categorised as “>61% Fe”) 1.4 Bt @ 60.7% Fe of Proved Ore Reserves and 1.3 Bt @ 61.2% Fe of Probable Ore Reserves (for which the Competent Persons were P Barnes (AusIMM), R Bleakley (AusIMM), L Vilela Couto (AusIMM) and R Sarin (AusIMM)). Rio Tinto confirms that it is not aware of any new information or data that materially affects the abovementioned information included in the 2022 Annual Report, that all material assumptions and technical parameters underpinning the abovementioned estimates in the 2022 Annual Report continue to apply and have not materially changed, and that the form and context in which the Competent Persons’ findings are presented have not been materially modified. Mineral Resources are reported in addition to Ore Reserves. All Mineral Resources and Ore Reserves are reported on a 100% basis.

Topic Duration (mins) Presenter Welcome to country 10 Brendan Kerin, Gadigal People of the Eora Nation Safety share 2 Kellie Parker, Chief Executive, Australia Our purpose in action 10 Jakob Stausholm, Chief Executive Panel 1: Creating options for our future - Exploration and Technology 20 Isabelle Deschamps, Chief Legal Officer Dave Andrews, Head of Exploration Nigel Steward, Chief Scientist Our markets and customers 13 Alf Barrios, Chief Commercial Officer Vivek Tulpule, Head of Economics & Markets Panel 2: The mindset that's driving performance - Best Operator 17 James Martin, Chief People Officer Kellie Parker, Chief Executive, Australia Arnaud Soirat, Chief Operating Officer Simon Trott, Chief Executive, Iron Ore Safety share – culture 5 Molly Singline, General Manager, Iron Ore BREAK 15 Our decarbonisation in action 10 Mark Davies, Chief Technical Officer Aluminium - in focus 10 Jérôme Pécresse, Chief Executive, Aluminium Copper - in focus 10 Bold Baatar, Chief Executive, Copper Iron Ore - in focus 8 Simon Trott, Chief Executive, Iron Ore Simandou 10 Bold Baatar, Chief Executive, Copper Mark Davies, Chief Technical Officer Capital allocation and financials 10 Peter Cunningham, Chief Financial Officer Closing remarks 2 Jakob Stausholm, Chief Executive Q&A session 45 All ©2023, Rio Tinto, All Rights Reserved 5 Agenda

©2023, Rio Tinto, All Rights Reserved 6 Investor Seminar presenters Alf Barrios Chief Commercial Officer Simon Trott Chief Executive Iron Ore Jérôme Pécresse Chief Executive Aluminium Isabelle Deschamps Chief Legal, Governance and Corporate Affairs Officer Kellie Parker Chief Executive Australia Arnaud Soirat Chief Operating Officer James Martin Chief People Officer Peter Cunningham Chief Financial Officer Jakob Stausholm Chief Executive Mark Davies Chief Technical Officer Bold Baatar Chief Executive Copper Vivek Tulpule Chief Economist Executive Committee Nigel Steward Chief Scientist Dave Andrews Head of Exploration

Welcome to country Brendan Kerin - Gadigal People of the Eora Nation ©2023, Rio Tinto, All Rights Reserved 7

Safety share Kellie Parker ©2023, Rio Tinto, All Rights Reserved 8

Our purpose in action Jakob Stausholm ©2023, Rio Tinto, All Rights Reserved 9

Excel in development Best operator Impeccable ESG ©2023, Rio Tinto, All Rights Reserved 10 Our purpose makes more sense than ever Finding better ways to provide the materials the world needs Care Courage Curiosity

©2023, Rio Tinto, All Rights Reserved 11 Strategy proving itself in an opportunity-rich world The opportunity Traditional demand Deepening ties with Asia Energy transition Supply security Re-industrialisation in the west Evolving societal expectations Global presence Operate across the value chain Deep technical skills Strong exploration track record Closer to customers Partnerships that create greater value Our advantages Brockman 4 - Pilbara BlueSmeltingTM at RTIT Matalco JV Mining Processing Commercial

Excel in development Best operator Impeccable ESG Care Courage Curiosity Investing in the health of our business Our people | Our ore bodies | Our assets Continuous improvement mindset More productive and resilient assets Better operational and financial performance ©2023, Rio Tinto, All Rights Reserved 12 Dampier Port, Australia

Pilbara renewables Partnering with Yindjibarndi Energy Western Range + Four replacement mines + Rhodes Ridge AP60 – low carbon technology Commenced early works ©2023, Rio Tinto, All Rights Reserved 13 Shaping our portfolio for the future Simandou – high grade iron ore Completed bankable feasibility study Matalco – aluminium recycling JV completed Oyu Tolgoi Ramping up to 500ktpa (100% basis)1 1 See supporting references on slide 3

Exploration and technical capabilities strengthening our portfolio Operational focus and learning mindset driving our performance Investing in our people, asset and orebody health Delivering a stronger Rio Tinto for the long term ©2023, Rio Tinto, All Rights Reserved 14

Panel 1: Creating options for our future - Exploration and Technology Isabelle Deschamps Dave Andrews Nigel Steward 15©2023, Rio Tinto, All Rights Reserved

©2023, Rio Tinto, All Rights Reserved 16 Building on our history and enabling growth World-class Exploration team ~$400m annual spend 5 key focus areas for R&D Extensive network of partners Venture Capital investments for agility Innovation Advisory Committee $150m for Centre for Future Materials2 ~$250m1 annual spend 450 employees 18 countries 8 commodities >100 projects in pipeline >50% of spend targeted at copper >70 years of experience R&D and data analytics to accelerate discovery Strong technology and R&D pedigree 1. Greenfield exploration expenditure 2. Over 10 years

©2023, Rio Tinto, All Rights Reserved 17 We are exploring for 8 commodities in 18 countries Countries where we have an active exploration programme Lithium Copper Diamonds Minerals Ni/PGE Iron Ore Brownfield Greenfield

©2023, Rio Tinto, All Rights Reserved 18 Our core purpose in exploration is discovery by finding or acquiring high-quality growth options Innovative, assertive, challenge the norms approach across all exploration terrains Support for Minimum Viable Projects with growth options, recognising Tier 1 projects grow over time Dynamic portfolio of projects, broad spread of options Enhance reputation as a respected, trusted partner by communities, Indigenous groups and local governments Organically-driven growth options while remaining opportunistic (countries, commodities, partners) Focus on metals in support of the energy transition (copper, lithium, nickel)

©2023, Rio Tinto, All Rights Reserved 19 Seven decades of industry-leading discovery and development performance 1956 South Africa Palabora Copper 1955 Australia Weipa Bauxite 1962 Australia Tom Price Iron Ore CZP 1968 PNG OK Tedi Copper 1975 Australia Koodaideri 1 Bedded Iron Ore 1991 PNG Wafi Gold 1996 Canada Diavik Diamonds 1996 Lao PDR Sepon Copper 2004 Guinea Simandou Iron Ore 2008 India Bunder Diamonds 2011 Brazil Amargosa Bauxite 2020 Australia Winu Copper 1964 PNG Panguna Copper 1972 South Africa Richards Bay Ilmenite 1979 Australia Argyle Diamonds 1983 PNG Lihir Gold 1993 Australia Century Zinc 2002 USA Resolution Copper 2005 Australia Caliwingina Iron Ore 2007 Australia Caliwingina Nth. Iron Ore 2004 Serbia Jadar Lithium 2014 Australia YandiBraid2 Iron Ore 2022 USA Tamarack Nickel Rio Tinto current or formerly owned/operated or significant business potential Divested Under cover or +100m depth of mineralisation 19 52 19 56 19 60 19 64 19 68 19 72 19 76 19 80 19 84 19 88 19 92 19 96 20 00 20 04 20 08 20 12 20 16 20 20 20 24 1. Gudai-Darri 2. Yandicoogina Braid

©2023, Rio Tinto, All Rights Reserved 20 We have more than 100 projects at varying stages of maturity Our pipeline focus is on the most promising opportunities Generative Pilbara Iron Ore 26 Copper projects Australia, USA, Chile, Peru, Colombia, Serbia, Zambia, Laos, Angola, PNG, Kazakhstan, Namibia 1 Heavy Mineral Sands (HMS) project Australia 7 Nickel projects Canada, Finland, Peru, Brazil, Australia 14 Lithium projects Canada, USA, Australia, Chile. Brazil. Rwanda, Kazakhstan Nuevo Cobre Copper, Chile Minerals project Canada Br ow nf ie ld G re en fie ld Target Testing Project of Merit Concept Study Copper Diamonds Lithium Minerals Iron Ore BauxiteNickel Copper Generative Minerals Generative Nickel Generative Lithium Generative Chiri Diamonds, Angola Kasiya Rutile, Malawi Texas Potash, Canada Kamiesberg HMS, South Africa Iron Ore projects AustraliaIron Ore projects AustraliaLithium project USA Bauxite projects Australia Copper projects USA Iron Ore targets Australia Discovery

©2023, Rio Tinto, All Rights Reserved 21 Our new joint venture with Codelco: Nuevo Cobre World class copper terrain; unique strategic partnership 57.74% Rio Tinto, 42.26% Codelco High potential for a significant porphyry discovery in the fourth largest copper district in the world (Atacama region, Chile) Property previously explored for gold, with existing gold oxide resources present Historical data review has indicated underexplored copper resources as well as upside copper targets - delineation work ongoing >440 km of drilling completed with ~7% analysed for copper. Environmental baseline monitoring and permitting commenced

©2023, Rio Tinto, All Rights Reserved 22 Tackling the energy transition together Geophysics & remote sensing Mapping the world with a light touch Advanced analytics & machine learning Turning our big data into big insights ESG Minimising our impacts Brownfield development Getting more from our existing assets Ore characterisation Leaving nothing on the plate Partnerships Underpinning everything we do

©2023, Rio Tinto, All Rights Reserved 23 Strong network of technology partnerships

Productivity 27 projects ©2023, Rio Tinto, All Rights Reserved 24 Disciplined technology roadmap Maximise value from each ore body Equipment utilisation Automation Energy efficiency Health & Safety 10 projects ESG 20 projects Growth 39 projects Carbon 24 projects Reducing frontline exposure to hazards Managing health and wellbeing of our people Reducing water consumption Improving water treatment Dry tailings Dry processing Closure Discovering new orebodies Reducing capital intensity Creating new revenue streams Green steel and low carbon products Storage options Green processing Green energy Green fleet Excel in Development Best OperatorImpeccable ESG Social Licence

©2023, Rio Tinto, All Rights Reserved 25 2023 highlights to evolve into 2024 successes Innovation Advisory Committee Comprised of innovation and R&D experts from around the world Provides insights on ways we can accelerate our innovation portfolio and offers guidance on emerging and disruptive technologies Rio Tinto Centre for Future Materials Committing $150m to research over 10 years Tackle challenges faced by our industry in providing materials the world needs for the energy transition​ Imperial College London will lead the Centre in partnership with international academic institutions Investing in technology and start-ups This year we have invested nearly $40m. Both first time investments and other subsequent investments based on innovation successes Focus on investing in technology and start-ups to help solve critical business challenges Progressing the portfolio In collaboration with our partners, we are focused on progressing key projects, including: • ELYSISTM • NutonTM • Lumo Analytics • BlueSmeltingTM • Hydrogen calcination • Steel decarbonisation and BioIronTM Accelerating innovation by ‘bringing the outside world in’ Advancing key projects NutonTM technology pilot plant, Bundoora, AustraliaImperial College LondonInnovation Advisory Committee members

Our markets and customers Alf Barrios Vivek Tulpule ©2023, Rio Tinto, All Rights Reserved 26

©2023, Rio Tinto, All Rights Reserved 27 Global trends driving commodity demand 1 Copper equivalent demand uses average annual prices from 2018-22 with finished steel demand in iron ore equivalent units. Energy Transition demand calculated on a gross basis. Based on Rio Tinto’s Competitive Leadership scenario. The contribution to growth is based on a net basis, for example, electric vehicles generate incremental demand for copper but actually contain less steel than internal combustion engines 2 Copper equivalent demand uses average annual prices from 2018-22 with finished steel demand in iron ore equivalent units Global commodity demand to grow by ~4% a year to 20351 <2°C scenario; Copper equivalent basis2 China US and Europe India Steel (Fe units) Aluminium Copper Lithium 2022 2035 2022 2035 2022 2035 ~8.5% CAGR ~2.7% CAGR ~2.6% CAGR • Decarbonisation and the energy transition are expected to fuel sustained commodity demand growth in the next decade • Regional industrial policies will play a large role amidst rising geopolitical forces, driving demand divergence • China will continue to underpin global demand for major commodities, accounting for 44% of the global market by 2035 • Surging Indian demand and the continued expansion of Western demand will complement Chinese growth

28 Decarbonisation drives potential for segmented steel value chains China India High grade iron ore supply Medium/low grade iron ore supply Western hemisphere ~25% of 2040 iron ore demand Robust future demand for high grade iron ores Policy incentives in US, EU1 supporting decarbonisation and clean energy Gas  Green H2 advantages in MENA / Americas Incentive for DRI-EAF decarbonisation pathway Eastern hemisphere ~75% of 2040 iron ore demand Robust future demand for all iron ore grades Longer-dated net zero targets High BOF steel share in China and east Asia Incentive for liquid ironmaking decarbonisation pathway2 1 EU policies include binding target of 55% GHG emission reduction by 2030, and 2050 net-zero target, supported by industry level targets, removal of free allowances, implementation of CBAM and green energy subsidies. US Inflation Reduction Act offers generous subsidies and rebates for clean energy including up to $3/kg tax credit for green hydrogen and up to $85/t CO2 for CCUS 2 Refers to any technology that abates CO2 emissions from and upstream of the melting separation of slag from hot metal. This includes BF+CCUS, DRI-BF-BOF and DRI-electric melting furnace-BOF©2023, Rio Tinto, All Rights Reserved Bubble size indicates the relative size of annual iron ore production

©2023, Rio Tinto, All Rights Reserved 29 Low-impurity ores could realise significant premiums at $100/tCO2 Indicative operating cost structure per tonne of crude steel at $100/t CO2 penalty and consensus long-run iron ore price forecasts ($75/t on a 62% Fe equivalent basis, CFR China) 1. 90% iron and 10% home scrap (valued at cost) used in steelmaking. Scrap costs are included in iron and steel conversion 2. Cost for coal products are assumed to be between $150-$250/t 3. Assumes Scope 2 emissions factor of 0.5t CO2/MWh, electricity price of $60/MWh 4. $8/GJ as generic industry cost of natural gas is consistent with regional projections from International Energy Agency. Iron ore value-in-use premiums can go up to $30/t (65% Fe) or $70/t (67% Fe) respectively if natural gas is sourced from a low-cost gas hub 5. Based on green H2 @ $2/kg, and assumes low-cost power and low Scope 2 emissions factor for steel conversion • Reduction in CO2 penalties achieved when moving to DRI/EAF routes creates higher steel margins with high-grade iron ores • Natural gas DRI can partially abate ironmaking CO2 emissions • Value chain margins can reach ~$120/t steel under H2 reduction, equating to around $80/t for iron ore Iron ore value-in-use premium over 62% Fe Iron ore feedstock2 (fines) BF/BOF3 DRI/EAF (H2 DRI5) +$20-30+$20 DRI/EAF1 (gas DRI4) 62% Fe 65% Fe 65% Fe 67% Fe 67% Fe Value chain margin Conversion and fuel costs Carbon penalty Cost of Fe units +$60-70 Up to +$80

©2023, Rio Tinto, All Rights Reserved 30 Recycling creates broad benefits across aluminium supply chain 0 50 100 150 2010 2015 2020 2025 2030 Recycling growth to outpace primary… …to enhance supply chain resilience … and to reduce emissions <2°C scenario; global aluminium production (Mt) Europe + US + Japan semis production CO2 intensity of primary aluminium and scrap (tCO2/t Al) Domestic primary Domestic secondary Imports China North America Europe ROW Scrap 2035 13.3 10.8 3.0 2.1 0.5 China Primary Aluminium (global average) Europe Canada Scrap 17% 16% 39% 51% 44% 2022 33% 2035 Source: IAI; CRU

©2023, Rio Tinto, All Rights Reserved Finding better ways to serve our customers What customers want Rio Tinto partner of choice Decarbonisation • Value chain decarbonisation • Low carbon products • New materials for the energy transition Security of supply • Access to scarce materials • Traceability • Diversified orebody portfolio (grade, geography) • Steel decarbonisation solutions Fe Iron ore • Low/ultra-low carbon and recycled aluminium • Powered by renewable energy • Geographically diverse production Al Aluminium • Oyu Tolgoi concentrates for growing smelting capacity in China • “Made in America” copper Cu Copper • Developing supply optionsLi Lithium 31

©2023, Rio Tinto, All Rights Reserved Matalco – a step change in our customer offering RenewAl™ End customers are increasing the use of recycled aluminium with North American demand forecast to increase from 4.7 to 7.8 Mt from 2022 to 20321 Matalco JV creates a leadership position, increasing our North American aluminium portfolio by 45% and almost doubling our portfolio of value-added products Recycling complements our offering – low carbon primary aluminium, ELYSISTM and now recycling – with secure access to high-quality scrap And sets us up for growth in the expanding North American market 32 2016 2018 2021 2021 2023 1. CRU Aluminium Long Term Market Outlook, December 2022.

584 Mt CO2e 66% Iron and steel making 3% Alumina refining 2% Marine and logistics 4% Procurement 22% Aluminium smelting 3% Other products ©2023, Rio Tinto, All Rights Reserved Supporting customers and suppliers to decarbonise the value chain Our Scope 3 emissions 33 2020 2030 2040 2050 2060 Illustrative Scope 3 trajectory incorporating current customer and country pledges1 Potential Net Zero emissions pathway (based on NZSI and IAI scenarios) 1. Based on current product and customer mix 2. NZSI = Net Zero Steel Initiative. IAI = International Aluminium Institute We are helping our customers beat the current trajectory Our customers, and their governments, have real commitments to reduce their emissions (our Scope 3) – and we are partnering to help them achieve these We are also driving breakthroughs in the technologies that will be required to achieve aggressive Net Zero 2050 trajectories 1,2

Partnering with customers to decarbonise the steel value chain >10 years to commercial scale Future Pathways 3 Ongoing Existing Pathways ~1-10 years to commercial scale Emerging Pathways 1 2 Unlock new low-CO2 technologies for low-mid grade Pilbara ores Working with our customers to lower the CO2 intensity of the Blast Furnace Using our high-grade iron ores to accelerate the early proliferation of low CO2 technologies Pellets Shaft Furnace Low-Mid-Grade Lump Low-Mid-Grade Fines EAF Sh af t F ur na ce w ith M el te r Electric Melter BOF Fl ui d B ed w ith M el te r Fluid Bed Low-Mid-Grade Fines EAF Electric Melter BOF Microwave Furnace Low-Mid-Grade Fines EAF Electric MelterB io Iro nT M Briquette BOF

©2023, Rio Tinto, All Rights Reserved 35 Specific, action-oriented near-term Scope 3 targets • Support customers to reduce emissions from BF by 20-30% by 2035 • Target a 50% reduction in Scope 3 (7 Mt) from IOC by 20351 • Commission Biolron™ Continuous Pilot Plant by 20261 • Deliver a DRI+melter pilot plant by 2026 in partnership with a steelmaker1 • Finalise study on a beneficiation pilot plant in the Pilbara by 2026 • Engage with top 50 emitting suppliers on emissions reduction • Decarbonisation as evaluation criteria for all new sourcing in high emitting categories in 2024 • Achieve 50% emissions intensity reduction by 2030 • FMC2 pledge of 10% of time charters net zero fuel capability by 2030 • Improve reporting – use actual voyage data for 95%+ of shipments in 2024 • Advance customer partnerships driving decarbonisation in 2024, advance and share improvements in the refining process (R&D) 1. Subject to funding approval and technical feasibility 2. First Movers Coalition Steel Marine Procurement Alumina

©2023, Rio Tinto, All Rights Reserved BioIronTM – pioneering breakthrough technologies BioIronTM uses raw biomass instead of metallurgical coal and microwave energy to convert Pilbara iron ore to metallic iron and has the potential to support low CO2 steel making Bed of green briquettes (ore, biomass, flux) ready for testing Finished BioIronTM DRI productGreen briquettes converted to Direct Reduced Iron (DRI) 01. Highly productive with ores from the Pilbara, the world’s largest iron ore region 02. More than 95% reduction in CO2 emissions compared to pig iron produced in the Blast Furnace 03. Utilises biomass produced from agricultural by-products 04. Electricity consumption is ~65% lower than other green Hydrogen technologies 36

Panel 2: The mindset that's driving performance – Best Operator James Martin Kellie Parker Arnaud Soirat Simon Trott 37©2023, Rio Tinto, All Rights Reserved

©2023, Rio Tinto, All Rights Reserved 38 Safe Production System progress and 2024 priorities 2024 priorities: Significant maturity uplift at existing deployment sites, and specifically problem solving for accelerated impact Partnership approach to rapidly improve asset health Continued rollout of SPS at a further 2-8 sites Delivery of a further 5mt production uplift at Pilbara Iron Ore in 2024 0 20 40 60 80 2021 Actual 2022 Actual 2023 Forecast 2024 Plan % of total eligible sites1 # of sites 5 16 24 26-32 1. 42 eligible sites across Rio Tinto Great people Strong, Stable Assets Customer Focus Effective, Simple Processes

©2023, Rio Tinto, All Rights Reserved 39 SPS is a global system improving safety, people and profit outcomes Grande Baie (Aluminium) 19% Kennecott (Copper) 8% Casting operating time (excluding shutdowns) People Survey employee satisfaction IOC (Minerals) 20% Hope Downs (Iron Ore) 42% All injury frequency rate (AIFR) Processing operating time variability Year-on-year change

©2023, Rio Tinto, All Rights Reserved 40 An update on Everyday Respect and our progress on the 26 recommendations Respect at every level Respect in every place Respect for every voice Exceeded our stretch target with 81%1 of employees completing training on building psychological safety and becoming an upstander Integrated Everyday Respect in leader and culture change programmes Identified structural barriers in our recruitment process through a combination of research, and surveying more than 6,300 employees Launched Care Hub in 3 countries – Australia, New Zealand and Mongolia covering ~30,000 employees, to help people impacted by harmful behaviours Established 3 global employee resource groups including gender equality, neurodiversity and LGBTQ+, with over 600 people joining so far Commenced contractor listening sessions Addressed immediate safety and hygiene risks at our sites Progressed works to further ensure our facilities are safe and inclusive Expanded ‘Stop for Respect’ conversations Created safe and inclusive facilities guidance, as well as implementing new village councils, with 20 now in place Continue partnership with stakeholders to keep the momentum beyond Rio Tinto • Partnering with BHP and Fortescue to launch an industry-first pilot programme aimed at educating new entrants to the sector • Sharing learnings with other stakeholders including our engagement results, cases, training and third-party culture assessments 1. As at November 2023

Everyday Respect – looking ahead Discovery and reflection Planning and Co-design Implementation Review • Time to reflect and understand the findings and recommendations of the Everyday Respect report • Co-design actions to ensure we implement the right solutions, that have real impact and take into account local experiences and context • Implement meaningful actions that will create a safer and more respectful and inclusive workplace • 8-month study • 100+ group listening sessions • 85 confidential individual listening sessions • 140 individual written submissions • 10,000+ survey respondents Discovery • In line with the recommendations of the Everyday Respect report, preparations are also underway for our independent progress review in 2024 2024 Review • Committed to the progress review, with release of the outcomes likely in Q4 • We are again using independent expert Elizabeth Broderick • We continue to commit to transparency and will share the progress report

Safety share - culture Molly Singline ©2023, Rio Tinto, All Rights Reserved 42

Break ©2023, Rio Tinto, All Rights Reserved 43

Our decarbonisation in action Mark Davies ©2023, Rio Tinto, All Rights Reserved 44

©2023, Rio Tinto, All Rights Reserved 45 Our project commitments are taking hold Commitments to abatement projects2 tCO2e equity basis Marginal Abatement Cost3 $/t CO2e 19< 0< 0 500 1,000 1,500 2,000 2021 2022 2023 26% 16% 14% 7% 17% 19% 1% PacOps Electricity1 Other Electricity Diesel Minerals Process Heat Alumina Process Heat Aluminium Anodes Land Management 2022 emissions % by source 2023 outcomes October 2021 Increased climate targets implemented 32.8Mt 1. Total PacOps emissions represent 50% of group emissions, largely allocated to PacOps electricity (26%), alumina process heat (15%) and anodes (6%) 2. Represents the abatement from in-year project commitments. There may be a lag to realised abatement given execution schedules or the nature of contracts entered into 3. Calculated on weighted average basis We have momentum in the portfolio • Converting our targets into actions, with an expected increase in activity in 2024 We have evolved our programme-based approach • Appointed Chief Decarbonisation Officer • Strengthened investment approach 2023 commitments • Renewable energy in Australia and Africa • Biofuels including 100% use at Boron and Kennecott • Piloting low-carbon heat and use of hydrogen in processing emissions

©2023, Rio Tinto, All Rights Reserved 46 Responsible investment today and a technology focus for the future Decarbonisation project pipeline (Mt CO2e, equity basis) Approved/ in-execution Executable Pilot scalePartnering with government Proof of concept -200 -100 0 100 200 300 400 500 M AC 1 ($ /t) RBM PPA BlueSmelting™ pilot OT RECs 1Mt CO2 abatement Boyne repowering Commercial transactions Transformational Industry breakthroughs Pilbara renewables H2 calcination pilot Renewable Energy Diesel Transition Minerals Processing Alumina Processing PacOps Repowering Aluminium Anodes Other 6+1 upside KUC renewable diesel Robust evaluation approach • Our path to 2030 is built on defined projects with value assessed in different future scenarios • Projects progress through pipeline using abatement cost and schedule considerations PacOps repowering • Working with the evolving Australian energy market for an industry-competitive, low-carbon energy solution R&D focus • Half our emissions will require technology breakthroughs to develop viable solutions • We continue to invest in our industry leadership position to address hard to abate processing emissions 1. MAC = Marginal Abatement Cost

©2023, Rio Tinto, All Rights Reserved 47 2023 pipeline progress RTIT BlueSmelting™ demonstration plantYarwun hydrogen calcination ELYSIS™ carbon-free aluminium anodes Transformational Repowering Pacific Operations • Low-carbon energy solutions progressing with key stakeholders Reducing baseload energy requirements • Piloting double digestion at QAL refinery Renewable energy • Committed renewable energy and certificates in Australia, South Africa and Mongolia • Yindjibarndi Energy Corporation partnership Drop-in biofuels • Boron and Kennecott replace its entire fossil diesel consumption with renewable diesel Commercial transactions Industry breakthroughs Electric fleet development and trials • Pilbara battery-electric haul truck pilots

©2023, Rio Tinto, All Rights Reserved 48 Pathway to 2030 target under our decarbonisation programmes 34.5 40 2018 baseline Net reduction PacOps Electricity 26% Other Electricity 16% Min. Proc. 7% Alumina Process Heat 17% Aluminium Anodes 19% 2022 Actuals Alumina Proc. 15% 2030 target (50%) 2025 target (15%) Forecast commitments under construction at 2030 2030 Aluminium Anodes 36% Min. Proc. 12% Diesel 24% Other Elec 11% Organic growthOther required2 Diesel 14% PacOps repowering 2024-2030 pipeline 32.8 2.3 2022-2023 commitments under construction/ development -50% Final schedule dependent on competitive solution Mt CO2e equity basis1 1. Rebased emissions due to scope 2 methodology changes. Data represents ‘gross’ Scope 1&2 emissions and direct abatement projects 2. ‘Other required’ will flex over time based on abatement project delivery, growth, closures and asset changes 17.3

©2023, Rio Tinto, All Rights Reserved 49 Roadmap to net zero Mt CO2e equity basis 1. Electricity abatement assumes commercial solutions (Power Purchase Agreements, Renewable Energy Certificates) to be rolled over upon conclusion of contract terms or alternative abatement projects implemented 2. Aluminium anodes abatement shown illustratively as linear decline throughout 2040s, timing of ELYSISTM deployment to be defined 3. High quality offsets include regulated compliance and voluntary offsets from our nature-based projects 4. Baseline emissions extended post-2040 using assumed asset life extensions Requires • Industrial scale ELYSIS™ • Zero carbon firming • Full fleet electrification • Hydrogen calcination • BlueSmelting™ -10 -5 0 5 10 15 20 25 30 35 40 2018 2030 2040 20502022 Renewable Energy1 Diesel Transition Minerals Processing Alumina Processing PacOps Repowering Commercial transactions Transformational KUC renewable diesel RBM PPAs QAL double digestion BSL repowering Industry breakthroughs Aluminium Anodes2 Nature-based Solutions3 Organic growth without decarbonisation4 We remain committed to our 2030 targets, with the repowering of our Australian aluminium assets to play a significant role Trajectory to net zero driven by ability to prove and scale-up technology breakthroughs for hard to abate processes We believe nature-based solutions play a role in addressing climate change and nature loss Pilbara renewable diesel Alumina processing electrification Global renewable energy penetration Tomago repowering OT renewables ELYSISTM

Aluminium – in focus Jérôme Pécresse 50©2023, Rio Tinto, All Rights Reserved

©2023, Rio Tinto, All Rights Reserved We are the world’s leading low-carbon aluminium producer, with options to grow 1. Incorporates non-managed joint ventures | 2. Seven facilities are Matalco joint venture assets Best positioned for an industry in transition 4 Bauxite Mines1 4 Alumina Refineries1 14 Aluminium Smelters1 8 Recycling Centres2 7 Hydropower Plants 3 R&D Centres and ELYSIS JV Critical metal to enable the energy transition Western re-industrialisation and industrial policies Consumer demand for green products Increasing aluminium scrap supply Cost of firmed green energy (hydro advantage) China 45Mt capacity cap 51

©2023, Rio Tinto, All Rights Reserved 52 Our strategy to deliver sustainable competitive advantage through the cycle 01 Grow North American low-carbon aluminium 03 Optimise integrated alumina supply chain 02 Repower Pacific Operations smelters 04 Maintain options for third party bauxite sales Four Lenses To focus our aluminium strategy Impeccable ESG | Social Licence Partnerships with customers | Governments | First Nations | Industrial partners Best Operator | Excel in Development Asset & people health | Capital intensity & project management expertise | SPS & productivity Culture & leadership | Innovation

©2023, Rio Tinto, All Rights Reserved 53 Best operator: restoring the base for a stronger business Kitimat at full capacity and Boyne cells recovered Annualised production rate kt, Rio Tinto share - 100 200 300 400 500 Jan-21 May-21 Sep-21 Jan-22 May-22 Sep-22 Jan-23 May-23 Sep-23 Kitimat BSL Boyne - ‘Best Operator’ Weipa – Safe Production System in mining and refining Stability improving in Bauxite & Alumina Annualised production rate mt, Rio Tinto share Best Operator 6.8 7.0 7.2 7.4 7.6 7.8 8.0 8.2 44 46 48 50 52 54 56 58 Jan-21 Apr-21 Jul-21 Oct-21 Jan-22 Apr-22 Jul-22 Oct-22 Jan-23 Apr-23 Jul-23 Bauxite (LHS) Alumina (RHS)  Metal pad ‘noise’1 down 40%  Anode ‘noise’1 down 30%  Carbon dust down 50%  Bath temperature deviation down 25% Delivering stability on Line 3 into 2024 People 6% Improvement in engagement Variability 6% Process variability reduction 1. The term noise refers to unsteady voltage signal in the reduction cell or random and/or uncontrolled fluctuations in the cell voltage

©2023, Rio Tinto, All Rights Reserved 54 Raw material prices trending downwards and inflation subsiding Raw material prices as a % of LME (indexed to historical 2014-2021 average)1 Rio Tinto Aluminium EBITDA margin Quarterly % 0.0 0.5 1.0 1.5 2.0 2.5 2019 2020 2021 2022 2023 Coke Pitch Caustic 0% 10% 20% 30% 40% 50% 2019 2020 2021 2022 2023 Margin (%) Input prices down from cyclical high Cyclical margin pressure subsiding 1. Index = 1.0 when the value is the same as the average % of LME for 2014-2021 for that raw material input. Data provided to the end of September 2023 (Source: Rio Tinto Market Analysis)

©2023, Rio Tinto, All Rights Reserved 55 Delivering on our North America conviction Supplier of choice of low-carbon, fully traceable aluminium, with future access to zero-carbon ELYSISTM Potential for future growth beyond existing 7 facilities - underpinned by a complete product offering, improving the customer value proposition and scrap supply from Triple M Giampaolo group subsidiary Continuing ELYSISTM development to move towards zero carbon aluminium with major steps towards demonstration Growing in North America with Matalco JV Investing in Canada with AP60 $0.7bn Investment in high-quality aluminium recycling 900ktpa Annual capacity 400kt (for 8 months) Shipments1 ~$65m (for 8 months) EBITDA on $700m revenue1 100% Rio Tinto responsible for sales & marketing 50% JV with Giampaolo Group $1.1bn AP60 state of the art smelter technology 2026 Fully ramped-up, matched with progressive Arvida closure 1.6t CO2e/t Al Approx. 50% less carbon emissions than Arvida 96 New AP60 pots (Total 134 AP60 pots) 160kt New capacity (220Kt total AP60 capacity) $113m Quebec Government financial support Recycling Low-carbon Primary Metal CO2 1. Based on 8 months to September 2023 (based on 31 January year-end)

©2023, Rio Tinto, All Rights Reserved 56 Partnering to capture the energy transition opportunity Rio Tinto Aluminium Circular Zero carbon Responsible Traceable Local / secure Customers • Prysmian – supply energy transition material • OEMs – partnerships for low emission vehicles Industrial partners • Matalco – new recycling JV • ARENA & Sumitomo – hydrogen calcination pilot at Yarwun Government • Governments of Australia and Canada – exploring opportunities for clean energy • Governments of Canada & Quebec – collaboration on AP60 and ELYSISTM First Nations • Kuessilueu (“wind is turning”) agreement; Saguenay-Lac- Saint-Jean region • Continuous engagements

Excel in development Best operator Impeccable ESG Care Courage Curiosity ©2023, Rio Tinto, All Rights Reserved 57 Our Aluminium business Improving our margins with Kitimat and Boyne recovery Setting Matalco JV up for success Progress AP60 expansion and ELYSISTM development

Copper - in focus Bold Baatar ©2023, Rio Tinto, All Rights Reserved 58

©2023, Rio Tinto, All Rights Reserved 59 On track for 1Mt of mined copper production within 5 years ~90% of the growth capital already spent • Rio Tinto is expected to account for 25% of the growth in global copper supply in the next 5 years4 • Oyu Tolgoi underground ramp-up on track to deliver over 500ktpa2 as a world class Tier 1 asset with multiple expansion options • Well positioned to support US energy transition - Kennecott expansion pathways include underground and open pit - Revival of US copper position, Resolution in established Arizona copper triangle • NutonTM bioleaching could unlock substantial volumes with up to 85% recoveries • La Granja joint venture with First Quantum • Winu is a promising project in the Paterson region of Western Australia • Nuevo Cobre JV with Codelco, to explore and potentially develop in Chile’s Atacama region Ownership interest in 4 large world class ore bodies: Our portfolio of assets Asset Ownership Mine life3 Ore Reserves2 Mineral Resources2 Escondida 30% 2070+ 6.7Bt @ 0.59% Cu 19.3Bt @ 0.50% Cu Oyu Tolgoi 66% 2070+ 1.1Bt @ 0.87% Cu 4.4Bt @ 0.69% Cu Resolution 55% 2070+ - 1.9Bt @ 1.52% Cu La Granja 45% 2070+ - 4.32Bt @ 0.51% Cu 1 Represents 2022 production as disclosed in our Q4 Operations Review, 17 January 2023, with Oyu Tolgoi adjusted to 100% volumes. Escondida at RT share 30% 2 See supporting references for the 500kpta copper target and Escondida, Oyu Tolgoi, Resolution and La Granja Mineral Resources and Ore Reserves categorisation and reporting on slide 3 3 Anticipated mine life is based on currently reported Ore Reserves and Mineral Resources tonnes projected at predicted annual capacity 4 Source: Rio Tinto, CRU, Wood Mackenzie Today1 PotentialBrownfield expansion Total organic growth UpsideGreenfield projects

©2023, Rio Tinto, All Rights Reserved 60 Continued investment at our high-quality operations $1bn of investment committed Smelter rebuild completed, expect to be fully ramped up by Q1 2024 Improved stability and returns following investment in the smelter rebuild 83 drawbells blasted1, ahead of plan Underground project 92% completed with 95% of the capital committed2 Expected to average 500ktpa3 of copper production from 2028 to 2036 Significant investment over the next 10 years to maintain production Growth options - concentrator and leaching currently under evaluation 1 As at 28 November 2023. 2 As at 31 October 2023 3 See supporting references for the 500kpta copper target and Oyu Tolgoi Resources and Ore Reserves categorisation and reporting on slide 3 Kennecott EscondidaOyu Tolgoi

©2023, Rio Tinto, All Rights Reserved 61 Oyu Tolgoi expected to move to first quartile of the 2030 cost curve Copper in concentrates (LHS)/ head grade (RHS)1 1 See supporting references for the 2023-2027 and 2028-2036 production profiles on slide 3 2 Source: Wood Mackenzie Ltd. Dataset 2023 Q1, Rio Tinto 3 Oyu Tolgoi cost quartile position on 2023 Copper Equivalent Cost Curve 0 0.25 0.5 0.75 1 1.25 1.5 0 100 200 300 400 500 Production of Copper in concentrates Copper grade % -100 0 100 200 300 400 500 600 0 10,000 20,000 30,000 40,000 Cumulative production (Mlb Cu) Oyu Tolgoi (2023)3 2030 Copper equivalent cost curve2 Copper equivalent unit cost including sustaining capex (c/lb) Oyu Tolgoi (2030)

©2023, Rio Tinto, All Rights Reserved 62 Well positioned to support the US energy transition Our US footprint Arizona and New Mexico exploration RT Cu Operation • US demand expected to double over next decade from 2Mt to 4Mt, with growing import dependence1 • Kennecott is 1 of 2 operating smelters and potential for life of mine beyond 20402 • Investment in Kennecott underground expansion and smelter rebuild, with further growth optionality • Supplier of critical minerals, such as tellurium • Rebuilding the copper triangle with potential to supply ~25% of US domestic supply through Resolution1 • Reducing our environmental footprint through our bioleaching technology Nuton • Advancing our regional exploration portfolio Utah and Nevada exploration Montana exploration Exploration Project 1 Source: S&P Global 2 Anticipated mine life is based on currently reported Ore Reserves and Mineral Resources tonnes projected at predicted annual capacity Kennecott

Yerington Lion CG ©2023, Rio Tinto, All Rights Reserved 63 NutonTM - a high-recovery and low-footprint technology Outstanding copper recovery rates: CO2e emissions up to 60% lower Water consumption >80% more efficient Tailings requirement None Capital intensity >40% lower Cactus ASCU Los Azules McEwen Antakori Regulus Johnson Camp Excelsior Escondida BHP Commercial demonstration Viability study and testing Leading sustainability credentials High-performing technology: Multiple applications up to 85% on primary copper sulphide ore bodies Aim to produce world’s lowest footprint copper across our five pillars, and stretch to have a positive impact in at least one: SocietyMaterialsLandWaterEnergy Partnering with resource holders to access copper volumes 6 Partnerships 4 Countries Partnership approach: Key differentiators Portfolio​ today 01 02 1 Will vary depending from site to site, ore characteristics and operating environment. Rio Tinto analysis. Nuton’s performance1 vs. conventional concentrating/smelting A Rio Tinto venture

©2023, Rio Tinto, All Rights Reserved 64 Our copper business Excel in development Best operator Impeccable ESG Care Courage Curiosity Oyu Tolgoi ramping up Improving stability and returns at Kennecott Scaling up NutonTM

Iron Ore - in focus Simon Trott 65©2023, Rio Tinto, All Rights Reserved

©2023, Rio Tinto, All Rights Reserved 66 A portfolio compatible with the environmental and heritage values of the region Access to markets Access to infrastructure Access to resources Port and rail - our competitive advantage • >360 Mtpa of port capacity • 350 – 360Mtpa of rail capacity Co-design and co-management of mines • Investing in genuine engagement and partnership with Traditional Owners • Protecting culturally significant areas Strong strategic relationships • Joint Ventures provide access to markets • Cracking the code for Pilbara ores in a green steel world

0 20 40 60 80 100 ©2023, Rio Tinto, All Rights Reserved 67 Robust returns through disciplined investment Mine capital intensity outlook ($/t installed capacity) Rhodes Ridge: the best undeveloped project in the Pilbara 2024 - 2028 Western Range Brockman 4 West Angelas Hope Downs 1 Greater Nammuldi In development Study phase Low phosphorous Brockman ore Marra MambaBrockman Range: 30% – 80% IRR1 1. IRR range across next tranche of replacement mines 2. Mineral Resources. See slide 3 for supporting references and breakdown of Mineral Resources 6.8Bt2 at 61.6% Fe Includes 5.3Bt at 62.2% Fe and 0.6Bt at 63.9% Fe (Dimensions: 30km x 60km) Large >100 Mtpa capacity Grade-advantaged >62% for Pilbara Blend Infrastructure Close to established rail

328-335 Western Range (construction) West Angelas Hope Downs 1 Greater Nammuldi Brockman 4 Replacement projects (~130 Mtpa capacity) 320 335 323 338 345 360 2023 2024 Mid-term capacity ©2023, Rio Tinto, All Rights Reserved 68 Clear pathway to mid-term system capacity of 345 – 360 Mt Shipping guidance (Mt, 100% basis) Guidance Outlook Feasibility study 1. Capacity 2. Post development of Rhodes Ridge 5 mines in the pipeline (~130 Mtpa capacity in total) • Western Range (25 Mtpa1), first ore 2025 • West Angelas, first ore 2027 • Hope Downs 1, first ore 2027 • Greater Nammuldi, first ore 2028 • Brockman 4, first ore 2028 Productivity and mine capacity depletion • Safe Production System: 5 Mt in 2023 and 5Mt in 2024 • Depletion: ~18 Mt in 2023 and ~12 Mt in 2024 (~90 Mt 2023 to mid-term) Rhodes Ridge • >100 Mt of capacity, staged development with first ore this decade • Re-orients Pilbara Blend to >85% of shipments Equity share and product mix • SP10 45 – 50 Mt in 2023 and elevated until replacement projects delivered • Effective equity share of free cashflow stable at >85%2

Development Drill & blast Load & haul RailProcessing Ports Focus on front line engagement is delivering results 4,332 Increase in ideas from front line2 2,196 Increase in ideas actioned2 Highest employee satisfaction since survey began in 2018 4% reduction in all injury frequency rate1 4% increase in employee2 productivity per tonne of saleable ore1 25% increase in People Survey participation2 West Angelas Yandicoogina Brockman 4 Tom Price Marandoo Cape Lambert Rail Cape Lambert Port A B C D E F G Deployment 14% Spatial conformance1 E 10% Ex-pit movement1 D 25% Surface mining health2 C 27% Metres drilled per hour1 C 21% D&B confirmed tonnes1 B 6% Drill availability1 A 10% Fixed plant availability1 D 82% Reduction in shut overrun1 B 48% Rock breaking delays1 A 11% Truck work rate1 E 14% Haul Truck utilisation2 D 18% Dig unit utilisation1 C 5% Cape Lambert rail cycle time1 F 14% Resurfacing productivity1 F 11% Cape Lambert A plant effective utilisation1 G 3.6% Cape Lambert A plant downtime1 G 1 Year-on-year improvement (2022 compared to H1 2023); 2 Improvement since deployment commenced 69 Safe Production System to deliver 5Mt production uplift in both 2023 and 2024

2011-2015 2016-2020 2021 2022 H1 2023 Mid-term Unit costs $/tonne shipped $21.2 ~$20.0 ~$20/t mid-term unit cost target1 Reduces unit costs from current Increases unit costs from current ©2023, Rio Tinto, All Rights Reserved 70 Increased volume and productivity to drive down mid-term costs Volumes increasing Productivity improvements Work index rising 1. Mid-term unit cost - AUD:USD FX 0.67, real basis, subject to inflationary pressures $21.7 $19.1 $14.0 $20.1 2023 Guidance $21.0 – 22.5 (lower half of range)

©2023, Rio Tinto, All Rights Reserved Our Iron Ore business Prioritising safety and culture Embedding ‘Most Valued’ mindset Capital efficient growth “Cracking the code” on green steel Excel in development Best operator Impeccable ESG Care Courage Curiosity 71

Simandou Bold Baatar Mark Davies ©2023, Rio Tinto, All Rights Reserved 72

A financially attractive, Tier 1 resource: IRR2 in low double digits anticipated for Simfer mine and combined infrastructure through ownership of Compagnie du TransGuinéen (CTG) Diversification of iron ore portfolio – complements our Pilbara and Iron Ore Company of Canada products Positioning for decarbonisation of the steel industry Co-development model a prototype for the future Strategic partnership with Guinea and China ©2023, Rio Tinto, All Rights Reserved 73 Unlocking1 the world’s largest known high-grade iron ore resource 1. Final Rio Tinto Board approval is subject to the remaining conditions being met, including joint venture partner and regulatory approvals from China and Guinea 2. IRR of 11 to 13% reported on a post-tax, real basis, based on Wood Mackenzie and CRU average pricing for iron ore (65% grade), with a premium applied for DR product. Refer to supporting references for the production targets underpinning the financial information on slide 4. For detailed project assumptions refer to slide 98

©2023, Rio Tinto, All Rights Reserved 74 Simandou complements our Pilbara and IOC1 portfolio Global Mineral Resources & Ore Reserves5 Billions of dry tonnes, published grades Pilbara Pilbara Blend Green steel application pathways IOC1 20Mt Simandou 60Mt2 Pilbara ~338Mt4 Portside ~24Mt3 Unrivalled global portfolio World class infrastructure Joint Venture partnerships Scale and resilience Product grade spread Operating In study Capacity Iron Ore Company of Canada High-grade, low-impurity products with Direct Reduction Iron market presence Simandou Blast furnace feed or Direct Reduction Iron products (~65% Fe) China Portside Global blending capability providing greater customer access 12 13 3 1 Ore Reserves 2 2 Low <61% Fe Mid 61-65% Fe High >65% Fe Mineral Resources exclusive of Ore Reserves Strategic differentiators High quality Ore Reserves 1. Iron Ore Company of Canada (100% basis) 2. Simandou blocks 3 and 4 expected annualised capacity (Rio Tinto’s share is 27Mt) 3. Portside sales in 2022 – blended and screened ores from Pilbara, IOC and third parties 4. Pilbara demonstrated capacity - sales volumes in 2018 (100% basis) 5. See supporting references for categorisation and reporting of Rio Tinto’s Mineral Resources and Ore Reserves on slide 4

©2023, Rio Tinto, All Rights Reserved 75 Three dimensions to the Simandou project 01 Compagnie du TransGuinéen (CTG) Infrastructure1 02 Simfer Mine – blocks 3 & 4 03 WCS Mine – blocks 1 & 2 Funded: 50% by Simfer InfraCo (53% Rio Tinto, 47% CIOH Consortium2) 50% by WCS InfraCo Ownership: 15% Government of Guinea 42.5% Simfer InfraCo (53% Rio Tinto, 47% CIOH Consortium2) 42.5% WCS InfraCo (51% Winning Consortium3, 49% Baowu) Ownership: 51% Winning Consortium3 49% Baowu – with a stated option to increase to 51% 1. The ownership of the rail and port infrastructure will transfer from CTG to the Guinean State after a 35-year Operations Period, with Simfer retaining access rights on a non-discriminatory basis and at least equivalent to all Third Party Users 2. Chalco Iron Ore Holdings (CIOH) Consortium: 75% Chinalco, 20% Baowu, 2.5% China Rail Construction Corporation and 2.5% China Harbour Engineering Company 3. Winning Consortium is currently a consortium of Singaporean company, Winning International Group (50%), Weiqiao Aluminium (part of the China Hongqiao Group) (50%) and United Mining Supply Group (nominal shareholding) Funded: 53% by Rio Tinto 47% by CIOH Consortium2 Ownership: 15% Government of Guinea 85% Simfer Jersey (53% Rio Tinto, 47% CIOH Consortium2)

©2023, Rio Tinto, All Rights Reserved 76 Simfer’s project scope Guinea Conakry 4 3 2 1 Rail Branch Main Rail Line Shipping Channel Morebeya Port Simfer built rail (70 km) WCS built rail (552 km) 1. Mine constructed on blocks 3 and 4 2. See supporting references for the production target on slide 4 3. Simfer sole funds the TSVs (capital is not shared with WCS unlike the rest of the infrastructure). Simfer will retain ownership (less a possible 15% State interest) and operation of the TSVs throughout the operations period. The TSV wharf and channel will be owned and operated by CTG 4. Comprised of a 536km mainline and a 16km spur Simfer will construct a 60Mtpa mine1, rail spur and transhipment vessel (TSV) port, and will own an equal share of CTG with WCS on completion Mine 60Mtpa with expansion options – average grade of 65.3% Fe - 26-year mine life2 Port – TSVs3 Self-propelled and dual navigation system - 40k dwt - 5 TSVs to deliver 60Mtpa Rail Spur 70km – 25t axle load – 5 bridges – 1 tunnel – connecting to 552km4 main rail line (WCS) Mine (Simfer) Mine (WCS) WCS built 60Mtpa port (Barges) Simfer built 60Mtpa port (TSVs) >600 Km of Railway

Stockyard dam to provide water for construction Tin Dijou camp building modules being assembled Installation of temporary construction camp for 1,020 people Material movement for heavy mobile equipment road Scopes of work to support contractor mobilisation and construction are progressing Accommodation availability and site facilities have been the focus across Q3 and Q4 2023 Camp strategy involves several temporary construction camps adjacent to the central office facility to accommodate 2,620 people initially 4 remote camps to support rail spur construction are mechanically complete ©2023, Rio Tinto, All Rights Reserved 77 Construction progress: enabling works underway

Simfer capex Rio Tinto share Mine and TSVs, owned and operated by Simfer: Development of an initial 60Mtpa mine2 at Simandou South (blocks 3 & 4) to be constructed by Simfer $5.1 billion $2.7 billion Co-developed infrastructure, owned and operated by CTG once complete3: Simfer scope Rail: a 70 km rail-spur from Simfer mine to the mainline, including rolling stock Port: construction of a 60Mtpa TSV port $3.5 billion $1.9 billion WCS scope Port and rail infrastructure including a 552 km trans-Guinean heavy haul rail system4 $3.0 billion $1.6 billion Total capital expenditure (nominal terms) $11.6 billion $6.2 billion5 ©2023, Rio Tinto, All Rights Reserved 78 Simfer capital expenditure summary Final Rio Tinto Board approval is subject to the remaining conditions being met, including joint venture partner and regulatory approvals from China and Guinea1 1. Investments into the WCS infrastructure project companies, that will serve as the joint venture vehicles for construction of the co-developed infrastructure, remain subject to a number of conditions including governmental approvals from Guinea and China 2. See supporting references for the production target on slide 4 3. A true-up mechanism will apply between Simfer and WCS to equalise their out of pocket costs of constructing the co-developed rail and port infrastructure 4. Comprised of a 536km mainline and a 16km spur 5. By the end of 2023, Rio Tinto expects to have invested $0.5 billion (Rio Tinto share) to progress critical path works. Rio Tinto’s share of capital investment remaining to be spent from 1 January 2024 is expected to be $5.7 billion

Commitment to globally recognised ESG standards and best practices Key Risks Regional economic development Economic contribution Job creation Co-development model Climate change resilience Key Opportunities Health and safety Biodiversity Project-induced migration Resettlement and land access Human Rights ©2023, Rio Tinto, All Rights Reserved 79

80 Capital allocation and financials Peter Cunningham

©2023, Rio Tinto, All Rights Reserved 81 Focus on operational performance uplift and consistently strong cash flows Operating cash flow1 ($bn) Production growth CuEq2 (Rio Tinto share) 1 Operating cash flow includes capital gains tax paid on disposals of $0.9bn in 2019, primarily related to coal disposals 2 Based on long-term consensus pricing 12 15 16 25 16 2018 2019 2020 2021 2022 -1% -1% -6% 7% 4% 2% 0% -4% 1% 4% 5% 5% 4% -8% -6% -4% -2% 0% 2% 4% 6% 8% Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Q4E 2023 Quarter (year on year change) 12m rolling (year on year change)

©2023, Rio Tinto, All Rights Reserved 82 Operating cash flow includes investment for creating growth options and strengthening social licence $bn 0.3 0.2 0.3 0.3 0.4 0.5 0.6 0.7 0.2 0.2 0.3 0.4 0.3 0.4 0.4 0.5 2021 2022 2023F 2024F Exploration Evaluation (excluding Simandou) CSP and Social Investment Decarbonisation and R&D 1.2 1.3 1.6 1.9 • Expenditure rising in line with development of project portfolio • Fully expensed via the P&L • Includes $250m per year of central greenfield exploration • R&D includes NutonTM, ELYSIS, decarbonisation and other projects • Progressing studies on Rincon, Resolution, Pilbara replacement and Rhodes Ridge in 2023/24

©2023, Rio Tinto, All Rights Reserved 83 Consistent capital allocation, balancing essential capex with shareholder returns and growth 1 Shareholder returns on a declared basis, excluding divestment proceeds returned to shareholders Essential capex ($bn) Integrity, Replacement, Decarbonisation01 Ordinary dividends ($bn) 60% of underlying earnings paid out in each of past 7 years1 02 Iterative cycle of…03 3.1 5.2 5.3 6.2 7.5 12.8 8.0 2022 2023F 2024F 2025F 2026F ~7.0 ~7.0 ~6.0 Sustaining Replacement Decarbonisation 20222016 20192017 2018 20212020 Declared basis ~7.0 Further cash returns to shareholders Compelling growth Debt management 6.2

©2023, Rio Tinto, All Rights Reserved 84 Shaping our portfolio for the future 1 Rio Tinto share basis Growth capex1 $bn Simandou the key driver of growth capex Oyu Tolgoi underground spend to wind down from 2024 as infrastructure is completed Other includes yet to be approved copper and lithium projects 2022 2023F 2024F 2025F 0.6 1.0 2026F Simandou Other Oyu Tolgoi Kennecott underground <$3bn per year

• Near-term demand more subdued with services driving GDP growth post- Covid and supply bottlenecks fading • Commodity prices stabilised in H2 2023 at close to or just below historical averages since 2010 • Balance sheet strength is an asset. Offers resilience and creates optionality ©2023, Rio Tinto, All Rights Reserved 85 Financial strength remains a key asset in volatile markets Major commodity prices (real $2023, 12-month moving average1) 1 Based on monthly average nominal price, converted to real 2023 levels using US GDP deflator from January 2010 and provided as a 12-month moving average 2 Based on average monthly price to 17 November 2023 Net debt/(cash) (RHS) 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Aluminium LME Copper LME Iron ore 62% Fe (Platts CFR China) 4.1 8.3 19.2 18.1 12.5 13.8 9.6 3.8 -0.3 3.7 0.7 -1.6 4.2 4.4 -5 0 5 10 15 20 25 Latest 3-month daily average price2 Boom to bust Brumadinho disaster Covid stimulus – increased demand and cost support; iron ore reverts earlier Weaker demand growth and falling cost support Global economic recovery

86 Decarbonisation investment pathways continue to evolve Decarbonisation pipeline (Mt CO2e, equity basis) Approved/ in-execution Executable Pilot scalePartnering with government Proof of concept -300 -200 -100 0 100 200 300 400 500 600 M AC ($ /t) Commercial solutions (opex) Capital solutions 1Mt abatement 2023-2030 capex % 2030 CO2e abatement % Commercial solutions • PPAs, VPPAs, RECs • Biofuels Capital solutions • Onsite renewables • Alumina process heat • Renewable diesel Nature-based solutions • Development connected to our operating regions ~65-70% ~10% ~25-30% ~5% ~90% -%1 Capital allocation driven by NPV/MAC, execution readiness, asset strength Greater use of commercial solutions and partnerships are easing capex requirements this decade Major fleet electrification expected post-2030 Total capex guidance to 2030 revised to $5-6bn1,2 RBM PPA BlueSmelting™ pilot OT RECs KUC renewable diesel Boyne Repowering Pilbara renewables H2 calcination ©2023, Rio Tinto, All Rights Reserved 1 Excludes capitalised voluntary offset costs and compliance based offset costs (e.g. Australian Safeguard mechanism ACCUs), estimated at ~$1bn to 2030. Rio Tinto nature-based solutions are opex as project funding does not meet accounting capitalisation criteria 2 Excludes costs expensed to the income statement associated with early-stage R&D and studies

©2023, Rio Tinto, All Rights Reserved 87 Investment to de-risk from carbon legislation and reduce opex Capital solutions2 Commercial solutions2 Legislated carbon penalty avoidance Net free cash flow Incremental carbon saving 2°C global carbon scenario3 Net free cash flow Annual average net operating costs ($m) from decarbonisation programme1 3-5% IRR pre-tax, real 10-13% IRR pre-tax, real 1 Annual average net operating costs reflect average cost savings / incremental costs over the period 2024-2039, recognising timing differences in delivery of projects and variability in underlying cash flows 2 Capital solutions relate to portfolio projects with large-scale upfront capital investment. Commercial solutions relate to projects delivered through contractual mechanisms 3 Modelled using Rio Tinto’s Competitive Leadership scenario Increasing influence of carbon taxes • ~50% of our emissions are now in scope for legislated carbon penalties • Costs not material in 2023, but will have greater impact as transitionary arrangements unwind • Uncertain future carbon pricing provides enhanced returns for decarbonised assets Reducing cost volatility • Fossil fuels account for ~16% of operating costs • Decarbonisation provides an opportunity to replace this volatility with long term stability

©2023, Rio Tinto, All Rights Reserved 88 Outlook underpins a strong Rio Tinto for the long term 1 Copper equivalent demand uses average annual prices from 2018-22 with finished steel demand in iron ore equivalent units. Energy Transition demand calculated on a gross basis. Based on Rio Tinto’s Competitive Leadership scenario. The contribution to growth is based on a net basis, for example, electric vehicles generate incremental demand for copper but actually contain less steel than internal combustion engines 2 Wood Mackenzie, CRU; average primary market demand over the period. Iron ore refers to global iron ore demand Total commodity demand by 2035 (<2°C scenario, CuEq)1 Attractive long-term demand fundamentals Primary demand2, Mtpa 2003-2022 2023-2035 Uplift Copper 20.5 29.8 +45% Aluminium 49.0 77.0 +57% Lithium 0.22 2.34 +945% Iron Ore 1,862 2,200 +18% Total demand growth of ~4% CAGR between 2022 and 2035 with net demand uplift from Traditional and Energy Transition broadly equal Lithium, nickel and cobalt AluminiumCopper Steel (Fe units) ~16% CAGR Traditional demand Energy Transition demand 2022 2022 2035 2035 ~1.9% CAGR

Appendices 90©2023, Rio Tinto, All Rights Reserved

Guidance ©2023, Rio Tinto, All Rights Reserved 91

©2023, Rio Tinto, All Rights Reserved 92 Production guidance 1 Pilbara shipments guidance remains subject to weather, market conditions and management of cultural heritage | 2 In the upper half of the range | 3 Includes Oyu Tolgoi on a 100% consolidated basis and continues to reflect our 30% share of Escondida | 4 In the lower end of the range | 5 Iron Ore Company of Canada 2023 Guidance 2024 Guidance Pilbara iron ore shipments1 (100% basis) 320 – 335Mt2 323 – 338Mt Copper Mined Copper (consolidated basis)3 Refined Copper 590 – 640kt 160 – 190kt 660 – 720kt 230 – 260kt Aluminium Bauxite Alumina Aluminium 54 – 57Mt4 7.4 – 7.7Mt 3.1 – 3.3Mt 53 – 56Mt 7.6 – 7.9Mt 3.2 – 3.4Mt Minerals TiO2 IOC pellets and concentrate5 B2O3 1.1 – 1.4Mt4 9.3 – 9.8Mt ~0.5Mt 0.9 – 1.1Mt 9.8 – 11.5Mt ~0.5Mt

©2023, Rio Tinto, All Rights Reserved 93 Group level financial guidance 2023 2024-2026 (per year) Capex Total Group1 ~$7.0bn ~$10.0bn Growth capital ~$1.0bn2 Up to $3bn Sustaining capital ~$4.0bn ~$4.0bn Including Pilbara sustaining3 ~$2.0bn ~$1.8bn Replacement capital ~$1.7bn ~$2 to $3bn Decarbonisation capital ~$0.15bn ~$1.5bn cumulative Effective tax rate ~30% Shareholder returns Total returns of 40 – 60% of underlying earnings through the cycle 1 Including Simandou | 2 We expect our share of investment in Simandou to be ~$0.2 billion in H2 2023 | 3 Subject to ongoing inflationary pressure

©2023, Rio Tinto, All Rights Reserved 94 Disciplined investing for growth and decarbonisation Capital expenditure profile (Rio Tinto share) $bn • We expect our share of capital investment to be around $7.0bn (previously $7.5bn) in 2023 • Sustaining capex of around $4.0bn per annum from 2024 to 2026, includes Pilbara of $1.8bn per annum on average • Replacement capex of around $1.7bn in 2023 increasing to $2 to $3bn per year from 2024 to 2026 • Growth capex of around $1.0bn in 2023 rising to up to $3.0bn from 2024 to 2026 2022A 7 ~7 ~10 2023F 2024F 2025F 2026F ~10 ~10 Growth Pilbara replacement Sustaining Decarbonisation Other replacement

Simandou ©2023, Rio Tinto, All Rights Reserved 95

©2023, Rio Tinto, All Rights Reserved 96 WCS and Simfer have separate scopes to leverage expertise, and reduce risk and costs Structure during operations Infrastructure assets will be funded 50/50 overall by WCS and Simfer in a co-development arrangement of focused scopes2. During construction, Simfer will hold 34% of WCS entities responsible for construction Simfer InfraCo will construct on behalf of CTG: • 70 km Simfer spur line • 60 Mtpa transhipment vessel (TSV) port WCS InfraCo will construct on behalf of CTG: • 552 km3 main rail line and WCS spur line • 60 Mtpa barge wharf Once infrastructure is complete, CTG will own and, with independent management team, operate all port and rail assets, excluding the WCS barges and Simfer TSVs CTG shareholders: 42.5% Simfer InfraCo, 42.5% WCS InfraCo and 15% Government of Guinea (during construction and operation) 1. 75% Chinalco, 20% Baowu, 2.5% China Rail Construction Corporation and 2.5% China Harbour Engineering Company 2. A true-up mechanism at the end of construction will top up/down to ensure 50/50 equal spend 3. Comprised of a 536km mainline and a 16km spur 15% Baowu Consortium Winning Consortium WCS InfraCo Government of Guinea Compagnie du TransGuinéen (CTG) Rio Tinto Chinalco Consortium1 Simfer InfraCo 51%49% 42.5% 42.5% 47%53%

7-member CTG Board of Directors Guinean Chairman appointed by the State Transitional arrangements during construction to comply with existing conventions Simfer and WCS have equal rights including capacity share split Sustainability committee to oversee ESG / HSSEC performance Leverages expertise of Winning Consortium Simandou (WCS) know-how in Guinea and Rio Tinto ESG capability The Co-Development Agreement (CDA) with the State sets the project scope for WCS and Simfer and links the existing conventions and investment frameworks Compagnie du TransGuinéen co-development model ©2023, Rio Tinto, All Rights Reserved 97 Robust governance structure The Compagnie du TransGuinéen (CTG) Shareholders Agreement provides for a robust governance model (including rights to appoint directors and senior managers), an HSSEC, business integrity and quality assurance regime, regular independent audits, HSSEC secondees and regular KPI reporting. Other transaction documents that are currently being negotiated will provide for a true-up mechanism between Simfer and WCS, to equalise the costs of constructing the rail and port infrastructure; and shareholders agreements to implement that governance model, including HSSEC, to the WCS and Simfer project companies that are undertaking construction.

©2023, Rio Tinto, All Rights Reserved 98 Simandou project life of mine key statistics1 IRR2 in low double digits anticipated for Simfer mine and combined infrastructure through ownership of CTG Mine Open pit, 1.5Bt Ore Reserves, Block 3 only Ownership Rio Tinto (45%), Chinalco Iron Ore Holdings (40%) Government of Guinea (15%) Construction time ~3 years First Production 2025 Ramp-up ~30 months Capex (Mine and TSVs) $5.1bn nominal (100% basis); $2.7bn RT share3 Throughput rate 60 Mtpa Product specification Testing underway for dual fines product – for blast furnace and direct feed: ~65.3% Fe and low impurities Mine life 26 years Operating cost (LOM4) $10/wmt (mine gate) Simfer Mine O ve rv ie w O pe ra tio n 1. See supporting references for categorisation and reporting of Simandou’s Mineral Resources and Ore Reserves as well as the production targets underpinning the financial information on slide 4 2. IRR of 11-13% reported on a post-tax, real basis. Based on Wood Mackenzie and CRU average pricing for iron ore (65% grade), with a premium applied for DR product 3. By the end of 2023, Rio Tinto expects to have invested $0.5 billion (Rio Tinto share) to progress critical path works. Rio Tinto’s share of capital investment remaining to be spent from 1 January 2024 is expected to be $5.7 billion 4. Life of mine, provided in real terms 5. Accounting treatment remains subject to full review of the final transaction agreements, assessment represents our current expectation during operation Sustaining capex (LOM4) $1/wmt Accounting treatment5 Simfer Jersey (53% owned by Rio Tinto) owns 85% of mine (fully consolidated) Co ns tru ct io n Scope Dual track, multi-user railway and transhipment port Ownership Simfer (42.5%), WCS (42.5%) Government of Guinea (15%) Construction time ~30 months Commissioning Rail and port: ~30-42 months post signing Capex Investment in WCS rail & port: $3.0bn nominal (Simfer, 100% basis); $1.6bn RT share3 Simfer InfraCo port and rail spur: $3.5bn nominal (Simfer,100% basis); $1.9bn RT share3 Capacity 120 Mtpa (of which 50% is for Simfer’s use) Concession life 35-year operating period to cover investment repayment Operating cost (LOM4) Rail: $8/wmt; Port: $7/wmt Simfer / CTG Infrastructure O ve rv ie w O pe ra tio n Sustaining capex (LOM4) $2/wmt Accounting treatment5 Simfer Jersey (53% owned by Rio Tinto) owns 42.5% of infrastructure (expected to be proportionally consolidated) Co ns tru ct io n

©2023, Rio Tinto, All Rights Reserved 99 Tax settings will provide a sustainable sharing of benefits between partners Key Tax Settings Simfer Mine Simandou Infrastructure Governing framework Simfer Convention Modified by the Bipartite Agreement WCS Port and Rail Conventions Modified by the Co Development Agreement Corporate tax Year 1-8: 15% Year 9+: 30% Year 1-17: 15% Year 18+: 25% Mining tax 3.5%1 on exports N/A Transhipping royalty N/A $0.50/t royalty on tonnes shipped Royalty can be partially offset by other taxes paid4 (reducing over time5) Local development contribution 0.25% of turnover2 n/a Dividend withholding tax n/a Year 1-17: 0% Year 18+: 5% Interest withholding tax n/a 10% on related party loans 4% on third party loans Customs 5.6% customs duty on imports used in mining process during operation3 1% registration/administrative levy & 5.6% customs duty on imports required for the project during operation6 1. FOB value. 0% on products used for local steel production 2. Annual turnover of Simfer SA after deducting fees for services in relation to the port and rail infrastructure 3. Examples of affected imports include inter alia plant, equipment, vehicles, fuels etc. Registration duty capped at US$100k is also payable. Exemption for imports directly involved in operating the mining infrastructure and port and rail 4. Interest withholding tax and corporate tax 5. Total possible offset: Year 1-10 $0.40/t; Year 11-15 $0.35/t; Year 16-30 $0.34/t-$0.20/t; Year 31+ $0.20/t 6. Examples of affected imports include inter alia materials, machinery, certain fuels etc. Excludes essence/gasoline (instead subject to 20% customs duty)

Decarbonisation ©2023, Rio Tinto, All Rights Reserved 100

©2023, Rio Tinto, All Rights Reserved 101 Our emissions differ from our peers: ~80% arise from processing metals and minerals which are in hard to abate sectors Total = 32.8Mt CO2e Aluminium Anodes PacOps Electricity1 Alumina Process Heat Minerals Process Heat On-grid processing (Iceland, South Africa, Oman) Grid-connected mining sites Off-grid mining sites Pilbara Other Diesel Land mgmt. Scope 1 & 2 emissions, 2022 actuals (Mt CO2e, equity basis) 26% 16%19% 17% 14%7% 1% Processing Bulk materials Other Other Electricity 1. Total PacOps emissions represent 50% of group emissions, largely allocated to PacOps electricity (26%), alumina process heat (15%) and anodes (6%)

©2023, Rio Tinto, All Rights Reserved 102 Updated emissions reporting methodology 1.1 0.9 Combined basis Europe & Nth America Australia 0.5 Rest of World Market basis 33.11 34.5 +4% 1.4 0.9 Combined basis Europe & Nth America Australia 0.4 Rest of World Market basis 30.91 32.8 +6% Market basis is now our primary measure • Emissions previously reported on a single measure combining location and market basis • New dual reporting aligned to GHG Protocol Corporate Standard and emerging best practice Market basis incentivises addition of renewables • Recognises new Rio Tinto contracted energy attributes • No ‘free carry’ from third party decarbonising of grids ISAL now recognised in emissions base • ~1.9Mt of reported emissions as Icelandic renewable credentials sold into European market • Smelter electricity still sourced from islanded renewable hydro-electric supply2018 2022 Scope 1 & 2 underlying emissions1 (Mt CO2e, equity basis) 1. Combined basis emissions for 2018 and 2022 are both higher than previously reported in the 2022 Climate Change Report, reflecting portfolio equity changes

©2023, Rio Tinto, All Rights Reserved 103 500,000+ hectares of land committed to high integrity nature-based solutions globally by 2025 Sourcing and investing in high-quality nature-based solutions projects to meet compliance requirements (e.g. Safeguard Mechanism) or complement our development portfolio Developing long-term partnerships that provide additional support to projects and guarantee credits offtake Developing nature- based solutions in our operating regions Building nature-based solutions partnerships Developing high integrity projects in Guinea, Madagascar and South Africa Aiming for 1 Mtpa development portfolio by 2030 – pilots advanced in Madagascar, opportunities to replicate in Guinea and South Africa in 2024 Addressing nature loss, climate change and community challenges Financing urgent nature protection and restoration Generating high quality carbon credits to complement our decarbonisation efforts

©2023, Rio Tinto, All Rights Reserved 104 In May 2023, our Boron operation became the world’s first open pit mine to go 100% biofuel – reducing up to 45kt of CO2e per annum Biofuels approach • Electrification will be the most efficient and cost-effective pathway to our zero-emission end state for diesel we believe, with meaningful effect post 2030. In the interim, we need to develop and deploy alternative abatement solutions available today, such as biofuels. • Biofuels critical to our transition and pivotal in supporting our near-term emission reduction commitments (2030). It is technically feasible with successful trials at Boron and Kennecott Copper operations. • Key challenge is access to sustainable non-edible feedstock at acceptable product premiums – we must consider the GHG impact across full life cycle of the biofuel (both scope 1 and scope 3). • In current markets, this is challenging and results in product costs higher than diesel fuels and we expect sustainable biofuels will likely continue to be relatively expensive outside subsidised regions. • The pragmatic pursuit of biofuels as an interim decarbonisation solution serves multiple benefits: - Protects us against carbon tax scenarios; - Enables a response to carbon penalties or subsidy opportunities; and - Affords time for suppliers, markets, supply chains and regulators to mature future zero-emission electrification technologies and ensure safe deployment in our operations. • We are exploring opportunities to support the development of the biofuel value chain, influence the type of biofuel feedstock and build scale. Above: Neste MY Renewable Diesel is a Hydrotreated Vegetable Oil (HVO) made from 100% sustainably sourced renewable raw materials – used at Boron Below: Biofuel powered truck at our Boron operations in California Boron case study • In May, we fully transitioned to renewable biofuel at Boron in the U.S, reducing up to 45kt of CO2-e per year. • Boron is the first open pit mine globally to fully transition to renewable biofuel. • Trial conducted in 2022 in partnership with Neste and Rolls-Royce to use Neste MY Renewable Diesel™ - 100% renewable raw materials such as used cooking oil and animal fat waste. • Trial showed trucks with renewable diesel delivered similar performance and reliability to conventional diesel. • Important first step and will lead to further opportunities to decarbonise our operations with biofuels and an excellent example of what can be achieved when partners (State of California, Neste and Rolls-Royce) collaborate toward a carbon reduction goal.

©2023, Rio Tinto, All Rights Reserved 105 The transition to renewable power generation in our Pilbara iron ore business will deliver additional value Rio Tinto and Yindjibarndi Energy Corporation (YEC) have signed a memorandum of understanding (MOU) to explore opportunities to collaborate on renewable energy projects on Yindjibarndi country in the Pilbara Case Study Simon Trott with Yindjibarndi Aboriginal Corporation chief executive Michael Woodley Initial development of 75 – 150MWAC solar PV Gas displacement of 2.5 – 5.0PJ from existing gas- fired power stations per annum Carbon savings of 130 – 260kt CO2e per annum Gas displacement Approximately 600 – 700MW of renewable power generation is estimated to be required to displace up to 80% of gas consumption for our Pilbara iron ore operations. The proposed renewable portfolio to displace the majority of gas usage is value accretive. Partnerships We are exploring a number of innovative solutions to accelerate decarbonisation, such as use of existing land access and post-mine closure land for future renewable developments. This includes collaboration with Traditional Owner groups in the region. Progressing studies We are continuing to study and negotiate the development of the proposed coastal solar farm. We are also pursuing additional opportunities to decarbonise our operations by advancing studies on other sites adjacent to our network (including additional solar/wind and battery solutions). Potential coastal solar site being studied Accelerated schedule with first operations starting from 2027 - 2030 Close proximity to operations, reducing transmission infrastructure spend “This will strengthen our existing partnership and provide long term benefits for our community, while also ensuring that we can protect and preserve the areas of cultural, spiritual and environment significance within our Ngurra.” Michael Woodley, YEC chief executive

©2023, Rio Tinto, All Rights Reserved 106 Iron & Titanium has advanced breakthrough decarbonisation options – creating optionality to adjust to a changing environment Rio Tinto and Aymium have worked together over the past two years to develop a biocarbon product that has demonstrated exceptional efficacy in ilmenite smelting during internal trials at the Iron and Titanium Quebec Operations facilities in Sorel-Tracy, Quebec. Our recently strengthened partnership marks a significant milestone in our joint efforts to accelerate the transition away from fossil-based energy sources, with the objective of producing renewable biocarbon at scale to help Rio Tinto achieve its 2030 emission reduction targets. Technology and Critical Minerals Centre in Sorel-Tracy Biocarbon A drop-in/short-term opportunity to implement a proven technology in Canada – to produce sustainable biocarbon a strategic raw material essential to achieve Rio Tinto's decarbonisation commitments within several of our business units. BlueSmelting™ A technological change combining mature pre-reduction technology from an existing smelter gas-based process, with advanced hydrogen-based technologies under development. Minerals processing decarbonisation – Rio Tinto Technology and Critical Minerals Centre The concept was to develop a portfolio of fast pace and agile options in order to accelerate and de-risk future projects and meet decarbonisation targets. Several of them have been delivered safely in record time, drawing on the skills and experience of the teams based in Canada and globally. “We are delighted to work with Aymium to develop and trial this renewable biocarbon product that has real potential as an alternative, low carbon source for our processes. We are investing to deepen our partnership, as part of our commitment to finding better ways to decarbonise our operations and the supply chains we are part of.’’ Sinead Kaufman, Chief Executive Minerals Accelerated development schedule 2022-2024 Significant emissions reduction potential across all business units of Rio Tinto in Canada Successful full-scale trials in May 2023 at RTIT Quebec Operations Biocarbon Case Study – Aymium partnership Learnings from BlueSmelting™ development and construction project

NutonTM ©2023, Rio Tinto, All Rights Reserved 107

% o re e xt ra ct io n Nuton Up to 85% Conventional heap leach chemistry 25-35% NutonTM expected to deliver exceptional recovery Up to 85% recovery from primary copper sulphides, compared to 25-35% from traditional heap leach Lower CO2 emissions, TMM1 and friendly ore to 99% cathode process A broad range of applications (brownfield, greenfield and reclamation) Efficient water consumption and no tailings Carbon intensity (CO2/t) % extractions from primary copper mineralogy Time (days) % o re e xt ra ct io n Modelled copper extraction Margin of error Actual 1 TMM = Total Material Movement.©2023, Rio Tinto, All Rights Reserved 108 Actual test results have supported our modelling work Nuton delivers leading ESG performance

A Rio Tinto venture Asset/ company​​ Current investment/agreement​​ Key terms/ Nuton rights​​ Johnson Camp Mine, AZ Excelsior Mining Inc. ​​(TSX)​​ Nuton Collaboration Agreement and option to JV Agreement Agreement with full pathway on demonstration and deployment​ • Testing programme​​ underway • Option to earn-in up to 49% at the asset level with 100% marketing rights​​ Yerington, NV​​ Lion Copper & Gold (TSX)​​ Option to Earn-in Agreement Stage 2 in progress​ • Option to earn up to 75%, with operating and marketing rights​​ Cactus Mine, AZ Arizona Sonoran (ASCU) (TSX-V)​​ Own 7.2% ASCU Investor Rights Agreement Testing Agreement​​ • Testing programme underway​​ • Nuton exclusivity​​ • Tech Committee rep​​ Los Azules, Argentina​​ McEwen Copper (MEC) (Private)​​ Own 14.5% McEwen Copper (Private), Nuton Collaboration Agreement​​ • Testing programme underway​​ • MEC Board seat​​ • Nuton collaboration committee rep​​resentative • Exclusivity over heap-leach technologies until Feb 2025​ AntaKori, Peru Regulus Resources (REG) (TSX-V)​​ Own 16% Regulus Investor Rights Agreement​​ • Testing programme​​ underway • REG Board seat, Tech Committee rep​​resentative The NutonTM portfolio today ©2023, Rio Tinto, All Rights Reserved 109

©2023, Rio Tinto, All Rights Reserved 110 Common acronyms $ United States dollar CuEq Copper equivalent km kilometre PNG Papua New Guinea Calculated abatement carbon price The levelised marginal cost of abatement at a zero carbon price Calculation: Discounted sum of all abatement costs over time at a zero carbon price / Discounted sum of all abated emissions over time Discounted at the hurdle rate RT uses for all investment decisions AIFR All Injury Frequency Rate CDA Co development agreement Kt Kilo tonnes PPA Power Purchasing Agreement Al Aluminium dmtu Dry Metric Tonne Unit Ktpa Kilo tonnes per annum QAL Queensland Alumina Limited AUD Australian dollar DR Direct Reduction KUC Kennecott Utah Copper R&D Research and Development B2O3 Boric oxide DRI Direct Reduction Iron LHS Left hand side RBM Richards Bay Minerals BF Blast furnace DWT Deadweight tonnage Li Lithium REC Renewable Energy Certificate bn Billion E&E Exploration and Evaluation LME London Metal Exchange RHS Right hand side BOF Blast Oxygen Furnace EAF Electric Arc Furnace M&A Mergers and Acquisitions RMB Renminbi BSL Boyne Smelter Limited EBITDA Earnings Before Interest, Taxes, Depreciation and Amortisation MAC Marginal Abatement Cost RT Rio Tinto Bt Billion tonnnes ESG Environmental, Social, and Governance MENA Middle East and North Africa RT Share Rio Tinto Share C Celcius EU European Union Mlb Million pounds RTIT Rio Tinto Iron and Titanium c/lb US cents per pound F Forecast Mt Million tonnes RTM Rio Tinto Marines CAGR Compound annual growth rate Fe Iron Mtpa Million tonnes per annum SPS Safe Production System Capex Capital expenditure FOB Free on board MW Megawatt tCO2 Tonne of carbon dioxide CBAM Carbon Border Adjustment Mechanism GDP Gross Domestic Product MWh Megawatt hour tCO2 e Tonne of carbon dioxide equivalent CCS Carbon Capture and Storage GHG Greenhouse gas Ni Nickel TSV Transhipment vessel CCUS Carbon capture, utilisation and storage GJ Gigajoules NPV Net present value UG Underground CFR Cost and freight H2 Hydrogen OEM Original Equipment Manufacturer US United States CIOH Chinalco Iron Ore Holdings Consortium HBI Hot briquetted iron OT Oyu Tolgoi USD United States dollar CO2 Carbon dioxide HSSEC Health Safety Security Environment and Community OTFS20 Oyu Tolgoi Feasibility Study 2020 VPPA Virtual power purchase agreement CO2e Carbon dioxide equivalent HMS Heavy mineral sands P&L Profit and loss WCS Winning Consortium CSP Communities and Social Performance IOC Iron Ore Company of Canada PacOps Rio Tinto Pacific Operations YoY Year on Year CTG Compagnie du TransGuinéen IRR Internal rate of return PDR People's democratic republic YTD Year to date Cu Copper JV Joint Venture PGE Platinum group elements Definitions

EX-99.9

EXHIBIT 99.9

Notice to ASX/LSE

Rio Tinto invests with discipline to strengthen the performance of assets and grow

6 December 2023

Rio Tinto will today hold its 2023 Investor Seminar in Sydney, where it will update on progress in its long-term strategy of investing with discipline to strengthen operations, deliver growth in a decarbonising world and continue to generate attractive shareholder returns.

Rio Tinto Chief Executive Jakob Stausholm said: "We strongly believe we are well positioned in an opportunity rich world. There has never been greater demand for what we do, from mining to processing, and the work we are doing today is creating a stronger Rio Tinto for years to come.

"The performance at our Pilbara iron ore and Oyu Tolgoi copper operations shows our path towards becoming best operator, and we are focussed on driving continuous improvement across our global portfolio. Our people are at the heart of lifting our performance, and we are continuing to invest time and energy in building a stronger culture with a learning mindset.

"We are making real progress in shaping our portfolio for the future, through entering new markets like recycled aluminium in North America, developments in technology and one of the most exciting exploration pipelines we've had for many years.

"Our purpose and long-term strategy make more sense than ever, as we ensure Rio Tinto remains a strong investment proposition. Profitable growth enables us to invest for the future while also paying attractive returns."

Executives will outline progress made in 2023, a pivotal year for Rio Tinto in which the Group's Copper Equivalent production is expected to grow 4%. This included a 5 million tonne uplift from implementing the Safe Production System at the Pilbara iron ore business, where a further 5 million tonne uplift is targeted for 2024. The Safe Production System continues to be rolled out across the Group's global operations to deliver further sustainable production improvement.

Progress in shaping Rio Tinto's portfolio for the future includes:

•A clear pathway to achieve and sustain mid-term system annual capacity of 345 to 360 million tonnes from its Pilbara iron ore business, including a pre-feasibility study underway on the Rhodes Ridge project, the Pilbara's best undeveloped iron ore deposit

•Production ramping up from Oyu Tolgoi in Mongolia, which is set to deliver 500 kt of copper per year on average for the period 2028-2036[1], becoming a first-quartile copper producer and the world's fourth-largest copper mine by 2030[2]

•Formation of the Matalco joint venture to give the Group a leading position in the growing North American recycled aluminium market

•Announcing todayRio Tinto's estimate of its $6.2 billion share of capital investment to develop Simandou[3]

Rio Tinto's market outlook will highlight how the Group is strategically well-positioned to capitalise on the expected sustained commodity demand created by decarbonisation, shifting regional industrial policies and geopolitics, that is favourable to Rio Tinto's globally diversified portfolio.  Total copper equivalent commodity demand growth of ~4% CAGR is expected between 2022 and 2035 under a <2°C scenario[4], with attractive long-term fundamentals across Rio Tinto's product mix.

Rio Tinto's share of capital investment is expected to be around $10 billion per year from 2024 to 2026, including up to $3 billion per year of growth investment to meet this demand. The largest investment over the next three years is expected to be Rio Tinto's equity share of the Simandou project once approved by the Rio Tinto Board,

    2 / 4

as spend starts to wind down at Oyu Tolgoi beyond 2024 with completion of the infrastructure. The remainder will be focussed on other copper and lithium projects, some of which are yet to be approved.

Rio Tinto remains committed to meeting its ambitious decarbonisation target to halve Scope 1 and 2 emissions by 2030 on the road to net zero by 2050, and a well-defined pipeline of initiatives is progressing.

The Group has made project commitments in 2023 which will deliver abatement of around 2Mt of CO2e per year. This includes renewable energy contracts in Australia and Africa and the transition to 100% renewable diesel at Boron in California in 2023 and at Kennecott in Utah from 2024.

95% of Rio Tinto's Scope 3 emissions stem from customers' processing of its products. Customers and governments have commitments to reduce their emissions, but as of today, Rio Tinto estimates a trajectory for those processing emissions that will reach net zero by around 2060. Rio Tinto is committing to partner with customers and suppliers to find better ways to reach their targets and bring them forward by a decade, to reach their targets by 2050. To do this, the Group is making real and measurable commitments in the short-term focussed around investments in the development of breakthrough technologies that will help decarbonise value chains and upgrading ores to be suitable for these. Detail on these commitments is included in the presentations for today's Investor Seminar.

Rio Tinto has updated its total capital guidance on decarbonisation to $5 to 6 billion for the period to 2030 (previously ~$7.5 billion), including around $1.5 billion from 2024 to 2026 and weighted to the latter part of the period. This reflects factors including the use of commercial partnerships outside of capital expenditure, such as renewable power purchase agreements and biofuel contracts, to accelerate decarbonisation, and aligning the timing of investment in the second phase of Pilbara renewable infrastructure to beyond 2030 when it will be needed to support fleet electrification.

Production guidance across Rio Tinto's portfolio is being released for 2024, with Pilbara iron ore shipments (100% basis) of 323 to 338 million tonnes, as announced at the Pilbara Site Visit in October.

Production guidance - Rio Tinto share unless otherwise stated	2023	2024
Pilbara iron ore[5] (shipments,100% basis) (Mt)	320 - 335[6]	323 - 338
Copper Mined copper[7] (consolidated basis) (kt) Refined copper (kt)	590 - 640 160 - 190	660 - 720 230 - 260
Aluminium Bauxite (Mt) Alumina (Mt) Aluminium (Mt)	54 - 57[8] 7.4 - 7.7 3.1 - 3.3	53 - 56 7.6 - 7.9 3.2 - 3.4
Minerals Titanium dioxide slag (Mt) IOC pellets and concentrate[9] (Mt) Boric acid equivalent (Mt)	1.1 - 1.48 9.3 - 9.8 ~0.5	0.9 - 1.1 9.8 - 11.5 ~0.5

    3 / 4

Capex guidance	2023	2024-2026 (per year)
Total Group[10]	~$7.0bn	~$10.0bn
Growth capital	~$1.0bn[11]	Up to $3bn
Sustaining capital	~$4.0bn	~$4.0bn
Including Pilbara Sustaining[12]	~$2.0bn	~$1.8bn
Replacement capital	~$1.7bn	~$2 to $3bn
Decarbonisation capital	~$0.15bn	~$1.5bn cumulative[13]

The presentation slides and the live webcast, which begins at 0500 GMT | 1600 AEDT, can be accessed at https://www.riotinto.com/en/invest/investor-seminars.

[1]This production target (stated as recoverable metal) for the Oyu Tolgoi underground and open pit mines for the years 2028 to 2036 was previously reported in a release to the Australian Securities Exchange dated 11 July 2023 "Investor site visit to Oyu Tolgoi copper mine, Mongolia". All material assumptions underpinning that production target continue to apply and have not materially changed.

[2]Source: Wood Mackenzie. Dataset Dec 2022, based on production from committed projects.

[3]Refer to release dated 6 December 2023 and titled "Simandou iron ore project update" at www.riotinto.com/news/releases. The final sanctioning of the project by the Rio Tinto Board is subject to a number of remaining conditions being met, including joint venture partner and regulatory approvals from China and Guinea.

[4]Copper equivalent demand uses average annual prices from 2018-22 with finished steel demand in iron ore equivalent units. Energy Transition demand calculated on a gross basis. Based on Rio Tinto's Competitive Leadership scenario.

[5]Pilbara shipments guidance remains subject to weather, market conditions and management of cultural heritage.

[6]In the upper half of the range.

[7]Includes Oyu Tolgoi on a 100% consolidated basis and continues to reflect our 30% share of Escondida.

[8]In the lower end of the range.

[9]Iron Ore Company of Canada.

[10]Including Simandou.

[11]We expect our share of investment in Simandou to be around $0.2 billion in H2 2023.

[12]Subject to ongoing inflationary pressure.

[13]Weighted towards the latter part of the period.

    4 / 4

Contacts 

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations,   United Kingdom  Matthew Klar M +44 7796 630 637  David Outhwaite M +44 7787 597 493	Media Relations,   Australia  Matt Chambers M +61 433 525 739  Jesse Riseborough M +61 436 653 412  Alyesha Anderson M +61 434 868 118  Michelle Lee M +61 458 609 322	Media Relations,   Americas  Simon Letendre M +1 514 796 4973  Malika Cherry M +1 418 592 7293  Vanessa Damha M +1 514 715 2152
Investor Relations,   United Kingdom  Menno Sanderse M +44 7825 195 178  David Ovington M +44 7920 010 978  Laura Brooks  M +44 7826 942 797	Investor Relations,   Australia  Tom Gallop M +61 439 353 948  Amar Jambaa  M +61 472 865 948
Rio Tinto plc  6 St James’s Square  London SW1Y 4AD  United Kingdom  T +44 20 7781 2000  Registered in England  No. 719885	Rio Tinto Limited  Level 43, 120 Collins Street  Melbourne 3000  Australia  T +61 3 9283 3333  Registered in Australia  ABN 96 004 458 404

This announcement is authorised for release to the market by Andy Hodges, Rio Tinto's Group Company Secretary.

riotinto.com 

EX-99.10

Notice to ASX/LSE Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP) 6 December 2023 As part of its dual listed company structure, Rio Tinto notifies dealings in Rio Tinto plc and Rio Tinto Limited securities by PDMRs / KMPs to both the Australian Securities Exchange (ASX) and the London Stock Exchange (LSE). Bonus Deferral Awards (“BDA”) granted under the Rio Tinto 2018 Equity Incentive Plan 50% of the annual bonuses of the participating executives are delivered as BDA in the form of deferred ordinary shares of Rio Tinto plc or Rio Tinto Limited (“shares”), as applicable. The BDA vests in December of the third year after the end of the performance year to which the annual bonus relates. On 1 December 2023, the following PDMR / KMP received their vested BDA in the form of shares, of which sufficient were sold to pay applicable withholding tax and other deductions. Security Name of PDMR / KMP Conditional Awards Granted Number of shares vested* Number of shares sold Price per share sold Number of shares retained Rio Tinto plc Shares Baatar, Bold 6,583 8,158 3,735 GBP 55.565765 4,423 Rio Tinto plc Shares Barrios, Alfredo 7,497 9,291 1,824 GBP 55.565765 7,467 Rio Tinto plc Shares Cunningham, Peter 1,402 1,737 796 GBP 55.565765 941 Rio Tinto Limited shares Kaufman, Sinead 1,408 1,677 793 AUD 124.6944 884 Rio Tinto plc shares Stausholm, Jakob 9,680 11,996 3,868 GBP 55.565765 8,128 Rio Tinto plc shares Trott, Simon 6,392 7,921 1,852 GBP 55.565765 6,069 *The number of awards vested includes additional shares calculated to reflect dividends declared during the vesting period on the original shares granted. LEI: 213800YOEO5OQ72G2R82 Classification: 3.1. Information disclosed under article 19 of the Market Abuse Regulation. EXHIBIT 99.10

Notice to ASX/LSE 2 / 2 Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary. riotinto.com

EX-99.11

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 1 / 6 Announcement Summary Entity name RIO TINTO LIMITED Date of this announcement Thursday December 07, 2023 The +securities the subject of this notification are: Total number of +securities to be issued/transferred ASX +security code Security description Total number of +securities to be issued/transferred Issue date RIO ORDINARY FULLY PAID 20,448 01/12/2023 Refer to next page for full details of the announcement Unquoted options that have been exercised or other unquoted +convertible securities that have been converted EXHIBIT 99.11

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 2 / 6 Part 1 - Entity and announcement details 1.1 Name of entity RIO TINTO LIMITED We (the entity named above) give notice of the issue, conversion or payment up of the following unquoted +securities. 1.2 Registered number type ABN Registration number 96004458404 1.3 ASX issuer code RIO 1.4 The announcement is 1.5 Date of this announcement 7/12/2023 New announcement

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 3 / 6 Part 2 - Issue details 2.1 The +securities the subject of this notification are: 2.2b The +securities being issued, transferred or re-classified as a result of the options being exercised or other +convertible securities being converted are: securities that have already been quoted on ASX ("existing class") Unquoted options that have been exercised or other unquoted +convertible securities that have been converted

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 4 / 6 Part 3B - number and type of +securities the subject of this notification (existing class) where issue has not previously been notified to ASX in an Appendix 3B The right of the holder of the options or other +convertible securities to receive the +underlying securities is being satisfied by: The underlying securities being received by the holder are: Existing +securities converting into an existing class FROM (Existing Class) ASX +Security code and description RIOAL : SHARE RIGHTS TO (Existing Class) ASX +Security code and description RIO : ORDINARY FULLY PAID Please state the number of options that were exercised or other +convertible securities that were converted 20,448 The first date the options were exercised or other +convertible securities were converted 1/12/2023 The last date the options were exercised or other +convertible securities were converted 1/12/2023 Is this all of the options or other +convertible securities on issue of that type? Were the options being exercised or other +convertible securities being converted issued under an +employee incentive scheme? Are any of the options being exercised or other +convertible securities being converted held by +key management personnel (KMP) or an +associate? Provide details of the KMP or associates who are exercising options or converting convertible securities. Name of KMP Name of registered holder Number of +securities Sinead Kaufman Computershare Trustees (Jersey) Limited on behalf of Ms Kaufman 1,677 Date the +securities the subject of this notification were issued/transferred 1/12/2023 Any other information the entity wishes to provide about the +securities the subject of this notification Yes Yes Yes Already quoted by ASX A transfer of existing +securities

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 5 / 6 Issue details Number of +securities 20,448

Notification of Issue, Conversion or Payment up of Unquoted Equity Securities Notification of Issue, Conversion or Payment up of Unquoted Equity Securities 6 / 6 Part 4 - +Securities on issue Following the issue, conversion or payment up of the +securities the subject of this application, the +securities of the entity will comprise: (A discrepancy in these figures compared to your own may be due to a matter of timing if there is more than one application for quotation/issuance currently with ASX for processing.) 4.1 Quoted +Securities (Total number of each +class of +securities quoted) ASX +security code and description Total number of +securities on issue RIO : ORDINARY FULLY PAID 371,216,214 4.2 Unquoted +Securities (Total number of each +class of +securities issued but not quoted on ASX) ASX +security code and description Total number of +securities on issue RIOAI : SPECIAL VOTING SHARE 1 RIOAK : DLC DIVIDEND SHARE 1 RIOAL : SHARE RIGHTS 3,677,382

EX-99.12

Notice to ASX Appendix 3X – Late lodgement 12 December 2023 Please find attached Appendix 3X ‘Initial Director’s Interest Notice’ for Mr. Joc O’Rourke, who was appointed to the Rio Tinto Board effective 25 October 2023. In this instance, due to an administrative oversight the Appendix 3X notification was not submitted to the ASX within the stipulated timeframe as required under the ASX Listing Rule 3.19A.1. Rio Tinto is satisfied that this late lodgement is an isolated incident, and that it has processes in place to meet its disclosure obligations under ASX Listing Rules 3.19A and 3.19B. EXHIBIT 99.12

Notice to ASX 2 / 2 Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary. riotinto.com

Appendix 3X Initial Director’s Interest Notice + See chapter 19 for defined terms. 11/3/2002 Appendix 3X Page 1 Rule 3.19A.1 Appendix 3X Initial Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity Rio Tinto Limited ABN 96 004 458 404 We (the entity) give ASX the following information under listing rule 3.19A.1 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of Director Joc O’Rourke Date of appointment 25 October 2023 Part 1 - Director’s relevant interests in securities of which the director is the registered holder In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Number & class of securities Nil

Appendix 3X Initial Director’s Interest Notice + See chapter 19 for defined terms. Appendix 3X Page 2 11/3/2002 Part 2 – Director’s relevant interests in securities of which the director is not the registered holder In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Name of holder & nature of interest Note: Provide details of the circumstances giving rise to the relevant interest. N/A Number & class of Securities N/A Part 3 – Director’s interests in contracts Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. Detail of contract N/A Nature of interest N/A Name of registered holder (if issued securities) N/A No. and class of securities to which interest relates N/A

EX-99.13

Appendix 3Z Final Director’s Interest Notice + See chapter 19 for defined terms. 11/3/2002 Appendix 3Z Page 1 Rule 3.19A.3 Appendix 3Z Final Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity Rio Tinto Limited ABN 96 004 458 404 We (the entity) give ASX the following information under listing rule 3.19A.3 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of director Dr Megan Clark Date of last notice 23 March 2020 Date that director ceased to be director 15 December 2023 Part 1 – Director’s relevant interests in securities of which the director is the registered holder In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Number & class of securities 6,370 Rio Tinto Limited ordinary shares. EXHIBIT 99.13

Appendix 3Z Final Director’s Interest Notice + See chapter 19 for defined terms. Appendix 3Z Page 2 11/3/2002 Part 2 – Director’s relevant interests in securities of which the director is not the registered holder Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Name of holder & nature of interest Note: Provide details of the circumstances giving rise to the relevant interest Nil Number & class of securities Part 3 – Director’s interests in contracts Detail of contract N/A Nature of interest Name of registered holder (if issued securities) No. and class of securities to which interest relates

EX-99.14

EXHIBIT 99.14

Notice to ASX/LSE

Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP)

22 December 2023

Rio Tinto plc notifies the London Stock Exchange (LSE) of PDMR interests in securities of Rio Tinto plc, in compliance with the EU Market Abuse Regulation. As part of its dual listed company structure, Rio Tinto voluntarily notifies the Australian Securities Exchange (ASX) of material dealings in Rio Tinto plc shares by PDMR / KMP and both the ASX and the LSE of material dealings by PDMR / KMP in Rio Tinto Limited securities.

The following PDMRs / KMPs sold Rio Tinto plc shares as follows:

Name of PDMR / KMP	Date	Number of Shares Sold	Price Per Share GBP
Bold Baatar	20 December 2023	55,208	57.717651
Alf Barrios	20 December 2023	40,000	57.754761
Alf Barrios	21 December 2023	40,000	58.38594

LEI: 213800YOEO5OQ72G2R82

Classification: 3.1. Information disclosed under article 19 of the Market Abuse Regulation.

Notice to ASX/LSE    2 / 2

Contacts

Please direct all enquiries to media.enquiries@riotinto.com

Media Relations, United Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493	Media Relations, Australia Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885	Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404

This announcement is authorised for release to the market by Andy Hodges, Rio Tinto’s Group Company Secretary.

riotinto.com