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Notice to ASX Bank of America Global Metals, Mining & Steel Conference 2025 13 May 2025 Rio Tinto Chief Executive Jakob Stausholm is presenting today at the Bank of America Global Metals, Mining & Steel Conference in Barcelona, Spain at 9am (CET) / 8am (BST). The presentation is attached and is also available at the link below, along with the webcast replay. https://www.riotinto.com/en/invest/presentations/2025/global-metals-mining-steel-conference-2025 EXHIBIT 99.8

Notice to ASX 2 / 2 Contacts Please direct all enquiries to media.enquiries@riotinto.com 0BMedia Relations, 1BUnited Kingdom Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 2BMedia Relations, 3BAustralia Matt Chambers M +61 433 525 739 Michelle Lee M +61 458 609 322 Rachel Pupazzoni M +61 438 875 469 4BMedia Relations, 5BCanada Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 6BMedia Relations, 7BUS Jesse Riseborough M +1 202 394 9480 8BInvestor Relations, 9BUnited Kingdom Rachel Arellano M: +44 7584 609 644 David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Weiwei Hu M +44 7825 907 230 10BInvestor Relations, 11BAustralia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 12BRio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 13BRio 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

Hope Downs, Pilbara Jakob Stausholm Bank of America Global Metals, Mining and Steel Conference 13 May 2025

©2025, Rio Tinto, All Rights Reserved 2 Cautionary 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 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, production guidance, 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 statement. 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.

©2025, Rio Tinto, All Rights Reserved 4 Executing our strategy to deliver long-term value Al Cu Zn Ni K (Potash) Li Iron Ore Current products Not currently producing 2035 industry size in terms of turnover (based on consensus) Fe Iron 26 Cu Copper 29 B Boron 05 Li Lithium 03 Ti Titanium 22 Iron ore #1 global3 (production) Bauxite #1 global 3rd party supplier5 Aiming to be FASTEST GROWING7 Ilmenite #2 global9 (production) Boric oxide 24% global market share10 Industry-leading resource endowment Aluminium #1 western world6 (production) Al Aluminium 13 Mining Processing Co-/By-products 1 of only 2 US smelters in operation Zr Zircon Mo Molybdenum Ga Gallium S Sulphuric acid K Potash Global downstream footprint8 Titanium dioxide feedstock #1 global (production) Boric oxide #2 global (production) Li Lithium Sc Scandium REE Monazite Te Tellurium Pellets #4 global4 (production) … … 1 Market sizes are based on volume-weighted 2024 price estimates. Volumes are based on primary production. 2 Simandou is on track for first ore at mine gate in 2025. 3 Based on 2024 total production, including IOC (as per Annual Reports). 4 Based on 2024 seaborne supply (Source: CRU). 5 Based on third party seaborne supply of bauxite in dry metric tonnes 2024. 6 Western world refers to Western Europe, Northern America, Australasia, Central and South America, Africa and excludes China and Russia. 7 Based on growth from 2024 – 2030 base case and probable projects for competitors (Source: Wood Mackenzie Q1 2025 report), and Rio Tinto’s ambition for 1 Mtpa copper production this decade. 8 Downstream conversion assets in the US, China, Japan and the UK. 9 Excluding China. 10 Based on internal estimates. We have shifted from No Growth to Profitable Growth (with options) Bubble area = current industry size in terms of turnover1 Key (relevant across slide)

©2025, Rio Tinto, All Rights Reserved 5 Exceptional portfolio of projects 1 Ambition for compound annual growth rate (CAGR) for copper equivalent production from 2024 to 2033 including lithium. On track: ~3%1 CAGR production ambition 2024 – 2033 Rincon Arcadium Nuevo Cobre Resolution Oyu Tolgoi Simandou