Notice to ASX/LSE Rio Tinto Limited 2025 Annual General Meeting: address by the Chair Dominic Barton, Chair, Rio Tinto 1 May 2025 **Check against delivery** Good morning to everyone here in Perth, and to those of you joining virtually. As Chair of Rio Tinto, I once again have the privilege of welcoming you to our 2025 Annual General Meeting. It’s great to be back in Western Australia. First, I would like to acknowledge the Whadjuk people of the Noongar Nation on whose Traditional Lands I am speaking from today. And I pay my respects to all Traditional Owners and Indigenous people that host our operations around the world. It also gives me great pleasure to introduce Robyn Collard to perform a Welcome to Country. Robyn is a Noongar woman from the Whadjuk and Ballardong groups, and she is joined by her grandson, Tryse Rioli, a Noongar, TiWi and Larrakia man, who will perform for us on the didgeridoo. Thank you, Robyn, for your welcoming words, and Tryse for your wonderful didgeridoo playing, and to both of you for opening our AGM. It was devastating to begin last year with the plane crash near Fort Smith, Canada. At last year’s AGM we named and remembered our four colleagues and the two air crew members who died in that tragic incident. It was with deep sadness that we experienced another fatality in 2024, as well as a missing seafarer. In October, Morlaye Camara tragically lost his life in an incident at the SimFer port site in Morebaya, Guinea. And in December, Gel Aguaviva was reported missing from one of our bulk carrier ships near the Philippines. Everyone has the right to go home safely every day. As we hold our colleagues and their loved ones in our thoughts, I want to assure you that we are learning from these events. They underscore why a relentless focus on safety is crucial, and I encourage us to take a moment to reflect on this. Thank you. Let me now introduce the members of our Board who are with us today: Susan Lloyd-Hurwitz; Martina Merz; Jennifer Nason; Sam Laidlaw, Senior Independent Director and Chair of our People and Remuneration Committee; Simon Henry, Chair of our Audit and Risk Committee; Peter Cunningham, our Chief Financial Office; Jakob Stausholm, our CEO; Dean Dalla Valle, Chair of our Sustainability Committee; Joc O’Rourke; Sharon Thorne; Ngaire Woods; Ben Wyatt and Tim Paine, our Australian Company Secretary We also have with us Trevor Hart, from KPMG, who has been our lead audit partner for the past five years. This will be Trevor’s last AGM in that capacity, due to his retirement from the role in accordance with auditor rotation requirements. I would like to acknowledge Trevor for his great work over the past five years. EXHIBIT 99.1

Notice to ASX/LSE In the last two years, I have spoken of our plan to renew the Board’s skills mix. This has led to a temporarily larger Board, while our more experienced directors have supported the handover to newer members. As we come to the end of this transitional period, there are a few changes to note. Kaisa Hietala and Sam Laidlaw will step down as Directors at the conclusion of this meeting and are not seeking re-election today. Sam will be succeeded by Ben Wyatt as Chair of the People & Remuneration Committee and by Sharon Thorne as Senior Independent Director. In October 2025, Simon Henry will also step down. Simon will be succeeded as Chair of our Audit and Risk Committee by Sharon Thorne. My thanks to Kaisa, Sam and Simon for your incredibly valuable support and contributions, which will be greatly missed. That said, I am happy about the breadth of experience that we currently have. AGMs play a key role in fostering dialogue and in building a shared understanding of the context in which we operate – they are opportunities for us as your Board to listen and learn from you, our shareholders, so that we can be better. And in order to make today’s proceedings as efficient as possible, I will now declare that voting on all resolutions is open. As usual, resolutions will be decided by poll. As a Board, we are very pleased to see Rio’s progression over the last few years. Jakob and his executive team have been cultivating a mix of skills and knowledge, project growth and social licence. The newest members – Jerome Pécresse in aluminium; Katie Jackson in copper; and Georgie Bezette in our People function – have all hit the ground running. We are also pleased to welcome Paul Graves as CEO of Rio Tinto Lithium, as we seek to build a world-class business off the back of the Arcadium acquisition, as Jakob will discuss. We have an increasingly diverse portfolio of materials the world needs – including for the energy transition – and this is supporting our finances and profitable growth journey. Our financial performance in 2024 was strong. Sales volumes and net operating cash flow were both up 3% year on year, while overall production grew 1%. The financial performance combined with strict capital allocation and our healthy balance sheet has enabled us to return $6.5 billion of dividends to you, our shareholders – a 60% payout at the top of our range for the ninth year running. As Jakob and the team set out at our Investor Day in December, we have a clear path to a decade of stable, sustainable, profitable growth through our major projects – supported by continuous improvements to our existing operations. Last year I told you how excited I was about these projects, which we are executing in challenging environments, on time and on budget. They have not disappointed. We are on course for 4% production growth this year, largely underpinned by Oyu Tolgoi underground. Oyu Tolgoi has a 97.5% Mongolian workforce. We recently launched the South Gobi Underground Mass Mining Institute, to help ensure that outstanding engineering, technological and safety expertise continues to be developed locally. In Argentina, the Rincon project went from greenfield to first lithium production in only 32 months. The Board was pleased to approve an investment late last year to expand the plant, where we will continue developing Direct Lithium Extraction techniques (DLE) that support water conservation and reduce waste.

Notice to ASX/LSE Next, there is Simandou – a one-of-a-kind high grade iron ore project being delivered by a team that is over 80% Guinean. Simandou is complex, but we firmly believe it will be transformational for Guinea and its people. And in the Pilbara, our development pipeline extends well into the next decade and beyond with new mines and projects including Western Range, West Angelas, Hope Downs 1, Greater Nammuldi and Brockman 4 expansion. In fact, over the next three years we expect to invest more than US$13.3 billion in new mines, plant and equipment in the Pilbara. This builds on about US$8.5 billion of investment in the region over the past three years. We’re also studying Rhodes Ridge, which may one day become the biggest iron ore mine built in Australia, potentially producing more than 100 million tonnes per annum. In fact, we are executing more projects worldwide than ever before; and the skills we are gaining as we do so are helping us improve our organisation overall. We are making progress when it comes to operational performance, as Jakob will outline shortly. The Safe Production System is yielding results: we are getting consistently stable operating performance. For example, last year we delivered record bauxite production at Gove and Amrun. We have more work to do to drive improvements across all our assets, but I am confident we will get there. Workplace culture is a key enabler of our performance. My years in business have taught me that culture is not a nice to have or a fad – it is foundational. Which is why we are determined to continue building a safe, respectful and inclusive environment where people feel comfortable to share their ideas and make continuous improvements. A respectful culture, social licence, and strong environmental, social and governance credentials go hand in hand with delivering shareholder value. Actually, it tells you something about the culture that when I recently visited Richards Bay Minerals – or RBM – in South Africa, I was asked a lot of questions from our frontline colleagues on our culture and our performance. This was in November, around the time we published the Everyday Respect Progress Review, and I was reassured that they felt free to speak up about any topic and wanted to see Rio succeed. If you do not know, RBM supplies the raw materials for titanium metal – used in advanced manufacturing and titanium dioxide. I do not think we realise how many everyday items rely on this mineral, from paint to toothpaste. The leadership at RBM is 100% South African, and many live in communities close to the mine and have progressed to management roles after first joining the company as graduates. Besides RBM, as a Board we have been fortunate to visit a wide range of other sites over the last year: including our Matalco recycling business and our primary aluminium business in Canada; Kennecott in the U.S.; and Simandou in Guinea. Engaging with employees and communities where we operate deepens our understanding of our challenges and opportunities, as well as our societal role and responsibilities. We, of course, are by no means perfect. But while we focus on running our operations, a common thread is that we are providing jobs, training and other opportunities while working on our environmental performance where we operate. However, we need good partnerships to do so. In March I had the privilege of spending time with the leaders of the Puutu Kunti Kurrama and Pinikura People on their Country in the Pilbara.

Notice to ASX/LSE One of the topics we discussed was how a Traditional Owner group and a mining company can most efficiently work together. We have relationships with over 60 Indigenous and land-connected Groups across the globe. Many of these are very positive relationships, while a small number remain challenged. In any case, we are committed to working together to achieve positive, long-term outcomes. Our business is growing, but we need to do this in a sustainable way. That requires us to build solid and trusting relationships and be consistent in our approach. Much of what I have said today may sound familiar. That’s because we have a clear strategy, one that we are focused on delivering with consistency. That is not to say the context we find ourselves in, is the same as last time we were here together; we are a complex business operating in a complex world, full of complex challenges: geopolitics, tariffs, community relations, industrial relations, and lengthy permitting. While industries such as ours must be nimble and constantly build new capabilities and technologies to continue growing productivity, when the world looks ever more complex, a consistent approach can be powerful. We are a long-term company following a consistent strategy, and the long-term picture is positive in terms of the demand for what we do. The fundamental drivers of our demand are all in place: population growth, economic development, and a significantly increasing need for materials that support energy security. As the world grows, so does its energy demand, including electricity. From today, to 2030, the International Energy Agency expects electricity to grow at 6 times the pace of overall energy demand, which itself is growing. This mass electrification requires more aluminium, more lithium, more copper, and more iron ore for steel. For example, we expect that by 2040 the world will need 3 times more copper than today for end use in renewable grid investment, energy storage, electric vehicles and other parts of the global energy system. If this future world wants a stable supply of these materials, then it will have to build new mines, and innovate and develop new technologies. We are doing all that we can to support this future – lithium being a case in point – while ensuring we continue creating value for our shareholders. In short, there will be challenges in the years ahead, but we are well placed to navigate them and make the most of the opportunities ahead of us. We are determined to consistently deliver sustainable production growth and shareholder value, even in a complex world. Thank you.

Notice to ASX/LSE 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 Michelle Lee M +61 458 609 322 Rachel Pupazzoni M +61 438 875 469 Media Relations, Canada Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Media Relations, US Jesse Riseborough M +1 202 394 9480 Investor Relations, United 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 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

Notice to ASX/LSE Rio Tinto Limited 2025 Annual General Meeting: address by the Chief Executive Jakob Stausholm, Chief Executive, Rio Tinto 1 May 2025 **Check against delivery** Thank you, Dom. And hello, everyone. I would also like to acknowledge and pay my respects to all Traditional Owners and First Nations people that host our operations around the world. Dom has made my job easy today, because he has already set out how we are delivering our plan for a decade of sustainable, profitable growth, and our ability to create further shareholder value. We are making good progress: our financial performance is strong, the portfolio is evolving, production is growing, we are honing our technical and leadership skills and becoming ever more disciplined in cost management. Meanwhile, the world is growing, its energy use is rising, and therefore so is demand for the materials we produce. Yes, there are uncertainties. But while we are engaged with the short-term horizon, we tend to think 20, 30, even 40 years ahead. The long-term outlook is positive, and I’m confident we have the right strategy and objectives to deliver value today and into the future. With that in mind, I have spent much of 2025 visiting our operations across the world, learning more about our challenges and opportunities, and listening to our employees and external stakeholders about how we can find better ways to provide these materials. Allow me to give you an impression of where we are from my perspective, based on these visits. And of course, the best place to start is with our new lithium business. Completing the acquisition of Arcadium Lithium in March was a significant moment in our history – and a clear example of how we are evolving the portfolio in line with commodities where demand growth is strongest. The long-term picture for lithium is very attractive. I was in South America when the transaction closed, getting to know our new colleagues and learning more about our sites in Argentina. There was a strong, shared commitment to ensure the success of Rio Tinto Lithium. The new business has the combined scale, technical, operational and commercial expertise to be a truly world-leading business. It was also impressive to see the progress we are making to expand the Rincon lithium plant, which demonstrates our deepening project-building and technical expertise. As you have heard, 2025 is a pivotal year for our major projects. Simandou in Guinea is on track for first iron ore production at the mine gate by the end of the year. And production at the EXHIBIT 99.2

Notice to ASX/LSE Mongolian Oyu Tolgoi copper mine is expected to grow by more than 50% this year. It has been remarkable to witness Oyu Tolgoi’s development, as it ramps up to peak production of 500,000 tonnes of copper a year. In March I visited the underground mine with the Mongolian President, who described it as one of the most exciting developments he has ever seen. Because Oyu Tolgoi is a modern, safe and sustainable mining operation built by 20,000 Mongolians. It demonstrates Best Operator excellence in action. We are determined to achieve this excellence everywhere, to safely and sustainably realise the full potential of all our assets. As you heard from Dom, we made good progress on our Best Operator objective last year, and we are moving further and faster this year. We still need to stabilise existing assets including Kennecott, Rio Tinto Iron & Titanium (RTIT) and Iron Ore Company of Canada (IOC), which all represent huge opportunities to unlock further value. When I visited IOC earlier this year, I could tell that its history of excellence lives on. Like so many parts of Rio, the Safe Production System is simply helping us tap into our DNA. The dedicated teams at IOC are identifying and addressing issues essential to continuously improve safety and productivity. Moreover, they are welcoming the challenge. I have seen excellent determination here in Western Australia and in the Pilbara, where the Safe Production System has helped stabilise our iron ore operations. Every time I visit, I am impressed by the passion and professionalism of the people who work in our mines here, often in extreme weather conditions. And there is no denying we have been challenged by intense cyclones this year – still, we are proving resilient. And I will never forget my engagements with the Traditional Owners here in Western Australia. It is not up to us to judge our progress on social licence, but I will say that each time I am on Country, I see the positive evolution of these most important relationships. There is more to do, but we are committed to stay the course and continue rebuilding trust. We are deeply committed to the communities here because we know we cannot operate without their trust. Last year, we boosted spending with suppliers in WA by A$1.5 billion to a record A$10.3 billion, as we continue to support local businesses to develop our pipeline of new Pilbara mining projects such as Western Range. We work with roughly 2,400 suppliers here each year – a symbol of our ongoing commitment to support jobs and deliver shared success. Of course, societal factors heavily influence our ability to operate. That is why we will continue to move the dial on impeccable ESG performance – in ways that simply make good economic sense. For example, decarbonising our business is deeply physical and complex, but we had a record year for our emissions reduction in 2024. What I’m most proud of is that we are starting to deliver projects that reduce our emissions and provide us with a secure supply of energy while retaining, and even creating, value. The same goes for our culture. I will echo what Dom said – that culture is foundational to how we realise the full value of our assets. That is because so much of our performance is about our mindsets and behaviours. We will stay the course to create a culture where everyone feels safe, respected and empowered to bring their best every day. Everything I have seen so far tells me we are building on the considerable momentum we created heading into 2025. We have all the building blocks in place for an incredibly robust, diversified and

Notice to ASX/LSE growing business. We will continue taking actions that ensure we remain resilient in the short, medium and long term, while creating value for you, our shareholders through our commitment to consistent returns and a strong balance sheet. We will achieve that by maintaining a laser focus as we go deeper with the Safe Production System, deliver improved cost management, and learn from executing complex projects. And we will improve our culture, safety and environmental performance as part of this accelerated drive towards Best Operator. That way, we know we can grow and build our portfolio of materials the world needs in a safe, sustainable and competitive way. Thank you. Back to you, Dom.

Notice to ASX/LSE 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 Michelle Lee M +61 458 609 322 Rachel Pupazzoni M +61 438 875 469 Media Relations, Canada Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Media Relations, US Jesse Riseborough M +1 202 394 9480 Investor Relations, United 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 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

Notice to ASX/LSE Results of Rio Tinto annual general meetings 1 May 2025 The annual general meetings of Rio Tinto plc and Rio Tinto Limited were held on 3 April 2025 in London and 1 May 2025 in Perth respectively. Under Rio Tinto’s dual-listed companies (DLC) structure, decisions on significant matters affecting shareholders of Rio Tinto plc and Rio Tinto Limited in similar ways are proposed as Joint Decision Matters, and the poll is voted on by shareholders of both companies as a joint electorate. Resolutions 1 to 19 contained in the notices of meeting of each Rio Tinto plc and Rio Tinto Limited fall into this category. In addition, certain holders of Rio Tinto plc shares requisitioned a resolution as a special resolution which the Board put forward as a Joint Decision Matter as Resolution 24 at the Rio Tinto plc annual general meeting and Resolution 21 at the Rio Tinto Limited annual general meeting. In summary, this resolution (the Requisitioned Resolution) proposed that Rio Tinto undertake an independent review on whether the dual- listed companies (“DLC”) structure should be unified. The results of these resolutions proposed as Joint Decision Matters are set out in table 1 below. In addition to these Joint Decision matters: • Resolutions 20 to 23 in the Rio Tinto plc notice of meeting were put to Rio Tinto plc shareholders only. The results of these resolutions are set out in table 2 below. • Resolution 20 in the Rio Tinto Limited notice of meeting was put to Rio Tinto Limited shareholders only. The result of this resolution is set out in table 3 below. All resolutions were carried, except for the Requisitioned Resolution, in respect of which a significant majority of shares were voted against the resolution, in line with the Board’s recommendation. Further context on the Requisitioned Resolution is set out below. The Board has periodically reviewed the DLC structure many times since it was established, and completed a further comprehensive review in 2024 with advice from leading external experts. The DLC structure delivers benefits in terms of capital markets access, shareholder returns and efficient franking credits utilisation. Any unification of the DLC structure under Rio Tinto Limited would give rise to material issues, including expected tax costs in the mid-single digit billions of US dollars, significant wastage of franking credits likely resulting in Rio Tinto being unable to pay fully franked dividends in the longer term, and a share price for a unified Rio Tinto that would likely trend towards the weighted average of the Rio Tinto plc and Rio Tinto Limited share prices. Rio Tinto consulted widely with shareholders of both Rio Tinto plc and Rio Tinto Limited on the Requisitioned Resolution prior to the annual general meetings and received significant support for the Board’s conclusion that unification of the DLC structure is not in the interests of shareholders and Rio Tinto as a whole. Rio Tinto also received feedback that shareholders want the Board to remain focused on the execution of the Group’s strategy and delivery of long-term, sustainable value for shareholders, and that a further review of Rio Tinto’s corporate structure so soon after conclusion of the Board’s previous comprehensive review would be duplicative. Shareholders also expressed concerns with aspects of the review required by the Requisitioned Resolution, which would be a clear deviation from long established corporate governance principles. Consistent with this feedback, a significant majority of Rio Tinto shares, representing 80.65% of votes cast, were voted against the Requisitioned Resolution, in line with the Board’s recommendation. EXHIBIT 99.3

Notice to ASX/LSE Rio Tinto recognises that shareholders representing 19.35% of votes cast chose to support the Requisitioned Resolution. Rio Tinto will continue to engage with our shareholders and will carefully consider the feedback provided. Table 1 The following Joint Decision Matter resolutions were put to the Rio Tinto plc and Rio Tinto Limited shareholders by polls at the respective annual general meetings. All resolutions save for the Requisitioned Resolution (listed as Resolution 21/24) were duly carried. The results of the polls were as follows: Resolution Total Votes Cast For Against Withheld/ Abstained ¹ Number % Number % 1. Receipt of the 2024 Annual Report 1,115,893,747 1,113,867,379 99.82 2,026,368 0.18 10,081,351 2. Approval of the Directors’ Remuneration Report: Implementation Report 1,099,347,399 1,074,116,989 97.70 25,230,410 2.30 26,622,923 3. Approval of the Directors’ Remuneration Report 1,099,713,996 1,071,056,748 97.39 28,657,248 2.61 26,246,816 4. To elect Sharon Thorne as a Director 1,122,530,759 1,115,790,068 99.40 6,740,691 0.60 3,442,000 5. To re-elect Dominic Barton BBM as a Director 1,121,184,547 1,075,101,867 95.89 46,082,680 4.11 4,790,942 6. To re-elect Peter Cunningham as a Director 1,119,200,039 1,106,579,234 98.87 12,620,805 1.13 6,775,592 7. To re-elect Dean Dalla Valle as a Director 1,121,205,084 1,070,534,038 95.48 50,671,046 4.52 4,770,697 8. To re-elect Simon Henry as a Director 1,122,663,812 1,098,042,067 97.81 24,621,745 2.19 3,338,957 9. To re-elect Susan Lloyd-Hurwitz as a Director 1,122,709,122 1,110,944,549 98.95 11,764,573 1.05 3,293,661 10. To re-elect Martina Merz as a Director 1,122,400,241 1,110,941,738 98.98 11,458,503 1.02 3,602,542 11. To re-elect Jennifer Nason as a Director 1,122,680,124 1,107,122,486 98.61 15,557,638 1.39 3,321,174 12. To re-elect Joc O’Rourke as a Director 1,122,660,828 1,111,450,890 99.00 11,209,938 1.00 3,341,437 13. To re-elect Jakob Stausholm as a Director 1,122,773,830 1,106,906,054 98.59 15,867,776 1.41 3,228,953 14. To re-elect Ngaire Woods CBE as a Director 1,122,528,749 1,097,200,003 97.74 25,328,746 2.26 3,474,035 15. To re-elect Ben Wyatt as a Director 1,118,933,309 1,098,349,394 98.16 20,583,915 1.84 7,069,223 16. Re-appointment of auditors 1,121,487,633 1,114,057,282 99.34 7,430,351 0.66 4,513,371 17. Remuneration of auditors 1,122,813,436 1,120,896,143 99.83 1,917,293 0.17 3,187,550 18. Authority to make political donations 1,116,257,914 1,103,324,510 98.84 12,933,404 1.16 9,726,612

Notice to ASX/LSE Resolution Total Votes Cast For Against Withheld/ Abstained ¹ Number % Number % 19. 2025 Climate Action Plan 1,023,895,914 955,082,547 93.28 68,813,367 6.72 102,102,363 21/242 Shareholder requisitioned resolution 1,115,660,973 215,922,209 19.35 899,738,764 80.65 10,339,170 ¹ In calculating the results of the respective polls under the joint electoral procedure, “withheld” votes at Rio Tinto plc’s meeting are aggregated with “abstained” votes at Rio Tinto Limited’s meeting. For all relevant purposes “withheld” votes and “abstained” votes have the same meaning. They are not included in the calculation of the proportion of votes for and against each resolution. 2 Resolution 21 in the Rio Tinto Limited notice of meeting is the corresponding resolution of Resolution 24 in the Rio Tinto plc notice of meeting. Table 2 The following resolutions were put to Rio Tinto plc shareholders only and carried at the Rio Tinto plc meeting held on 3 April 2025. Resolution 20 was carried as an ordinary resolution and Resolutions 21 to 23 as special resolutions. In accordance with the UK Listing Authority’s Listing Rule 9.6.2, copies of all the resolutions passed by Rio Tinto plc shareholders, other than ordinary business, have been submitted to the National Storage Mechanism and are available for inspection at http://www.morningstar.co.uk/uk/NSM. The results of the polls were as follows: Resolution Total Votes Cast For Against Withheld/ Abstained Number % Number % 20. General authority to allot shares 899,962,813 874,962,881 97.22 24,999,932 2.78 2,046,157 21. Disapplication of pre-emption rights 898,993,354 894,753,496 99.53 4,239,858 0.47 3,014,919 22. Authority to purchase Rio Tinto plc shares 900,115,072 711,804,446 79.08 188,310,626 20.92 1,894,892 23. Notice period for general meetings other than annual general meetings 900,114,767 867,091,016 96.33 33,023,751 3.67 1,895,195 Resolution 22 ‘Authority to purchase Rio Tinto plc shares’ was passed with less than 80% of votes in favour. As previously announced, Shining Prospect (a subsidiary of the Aluminium Corporation of China “Chinalco”) voted against Resolution 22. Chinalco has not sold any of its shares in Rio Tinto plc and now has a holding of over 14% given its non-participation in the Company’s significant share buyback programmes. This places Chinalco close to the 14.99% holding threshold agreed with the Australian Government at the time of its original investment in Rio Tinto. Table 3 Resolution 20 below was put to Rio Tinto Limited shareholders only. Resolution 20 was carried as an ordinary resolution. The results of the poll were as follows: Resolution Total Votes Cast For Against Withheld / Abstained Number % Number % 20. Renewal of on-market share buy- back authority 222,947,287 220,263,631 98.80 2,683,656 1.20 1,044,956 The results of the Rio Tinto plc polls were certified by the scrutineer, Computershare Investor Services PLC, and the results of the Rio Tinto Limited polls were as reported by the duly appointed returning officer, a representative of Computershare Investor Services Pty Limited. Information on the final proxy positions for each meeting is detailed in Appendix 1, and the votes cast on each resolution as a percentage of the issued capital of each company is set out on our website at riotinto.com/agm.

Notice to ASX/LSE 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 Michelle Lee M +61 458 609 322 Rachel Pupazzoni M +61 438 875 469 Media Relations, Canada Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Media Relations, US Jesse Riseborough M +1 202 394 9480 Investor Relations, United 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 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

Notice to ASX/LSE Appendix 1 FINAL PROXY POSITION Shareholders are encouraged to look at the voting figures provided in the main part of this announcement, as proxy figures may not be an accurate indication of the voting at the annual general meetings; a proxy is an authority or direction to the proxy holder to vote and not a vote itself. As such, the proxy figures do not reflect the votes cast by shareholders who attend the meeting in person, or through an attorney or corporate representative. References in this appendix in respect of resolutions 1-19 and 24 to an appointment specifying that a proxy abstain on a resolution should, when referring to voting at Rio Tinto plc’s annual general meeting, be taken as references to the appointment specifying that the proxy withhold from voting on a resolution. The proxy positions for each company (excluding the proxy votes carried from one meeting to the other meeting by the Special Voting Shares in accordance with the DLC structure) for the resolutions put to both Rio Tinto plc and Rio Tinto Limited shareholders under the joint electoral procedure were as follows: PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 1. Receipt of the 2024 Annual Report Total number of proxy votes exercisable by all proxies validly appointed: 884,657,385 220,974,390 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 882,978,106 215,453,828 (ii) was to vote against the resolution 1,450,211 576,132 (iii) was to abstain on the resolution 7,134,169 2,944,487 (iv) may vote at the proxy's discretion 229,068 4,944,430 2. Approval of the Directors’ Remuneration Report: Implementation Report Total number of proxy votes exercisable by all proxies validly appointed: 867,580,785 221,576,023 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 848,584,639 210,708,353 (ii) was to vote against the resolution 18,785,950 5,943,119 (iii) was to abstain on the resolution 24,211,453 2,339,779 (iv) may vote at the proxy's discretion 210,196 4,924,551

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 3. Approval of the Directors’ Remuneration Report Total number of proxy votes exercisable by all proxies validly appointed: 867,612,084 221,911,821 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 845,496,024 210,682,802 (ii) was to vote against the resolution 21,893,390 6,265,043 (iii) was to abstain on the resolution 24,180,154 1,994,471 (iv) may vote at the proxy's discretion 222,670 4,963,976 4. To elect Sharon Thorne as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,728,511 222,539,925 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 884,005,938 216,468,557 (ii) was to vote against the resolution 5,502,473 1,063,180 (iii) was to abstain on the resolution 2,062,855 1,376,827 (iv) may vote at the proxy's discretion 220,100 5,008,188 5. To re-elect Dominic Barton BBM as a Director Total number of proxy votes exercisable by all proxies validly appointed: 888,374,335 222,547,887 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 845,705,829 214,106,054 (ii) was to vote against the resolution 42,448,648 3,413,920 (iii) was to abstain on the resolution 3,417,608 1,370,992 (iv) may vote at the proxy's discretion 219,858 5,027,913

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 6. To re-elect Peter Cunningham as a Director Total number of proxy votes exercisable by all proxies validly appointed: 887,146,292 221,796,905 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 876,946,761 214,306,081 (ii) was to vote against the resolution 9,980,242 2,450,946 (iii) was to abstain on the resolution 4,645,795 2,121,972 (iv) may vote at the proxy's discretion 219,289 5,039,878 7. To re-elect Dean Dalla Valle as a Director Total number of proxy votes exercisable by all proxies validly appointed: 888,402,548 222,545,694 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 844,989,766 210,115,234 (ii) was to vote against the resolution 43,183,224 7,300,599 (iii) was to abstain on the resolution 3,389,689 1,373,183 (iv) may vote at the proxy's discretion 229,558 5,129,861 8. To re-elect Simon Henry as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,764,797 222,642,473 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 868,248,028 214,990,455 (ii) was to vote against the resolution 21,297,802 2,630,939 (iii) was to abstain on the resolution 2,054,427 1,276,405 (iv) may vote at the proxy's discretion 218,967 5,021,079

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 9. To re-elect Susan Lloyd-Hurwitz as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,803,909 222,648,371 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 879,443,168 216,172,495 (ii) was to vote against the resolution 10,136,333 1,454,145 (iii) was to abstain on the resolution 2,015,330 1,270,506 (iv) may vote at the proxy's discretion 224,408 5,021,731 10. To re-elect Martina Merz as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,791,815 222,351,584 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 879,880,095 215,705,750 (ii) was to vote against the resolution 9,692,842 1,591,563 (iii) was to abstain on the resolution 2,027,424 1,567,293 (iv) may vote at the proxy's discretion 218,878 5,054,271 11. To re-elect Jennifer Nason as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,801,791 222,622,318 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 877,000,641 215,261,582 (ii) was to vote against the resolution 12,584,256 2,287,130 (iii) was to abstain on the resolution 2,015,962 1,296,560 (iv) may vote at the proxy's discretion 216,894 5,073,606

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 12. To re-elect Joc O’Rourke as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,793,498 222,610,488 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 879,885,038 216,165,658 (ii) was to vote against the resolution 9,677,868 1,360,559 (iii) was to abstain on the resolution 2,025,742 1,307,870 (iv) may vote at the proxy's discretion 230,592 5,084,271 13. To re-elect Jakob Stausholm as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,806,413 222,710,875 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 877,280,341 214,254,082 (ii) was to vote against the resolution 12,307,420 3,387,117 (iii) was to abstain on the resolution 2,012,826 1,208,002 (iv) may vote at the proxy's discretion 218,652 5,069,676 14. To re-elect Ngaire Woods CBE as a Director Total number of proxy votes exercisable by all proxies validly appointed: 889,641,874 222,630,033 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 867,795,572 214,569,280 (ii) was to vote against the resolution 21,626,455 3,009,209 (iii) was to abstain on the resolution 2,177,365 1,288,845 (iv) may vote at the proxy's discretion 219,847 5,051,544

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 15. To re-elect Ben Wyatt as a Director Total number of proxy votes exercisable by all proxies validly appointed: 887,141,152 221,535,315 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 869,961,620 213,576,798 (ii) was to vote against the resolution 16,961,102 2,927,462 (iii) was to abstain on the resolution 4,677,937 2,383,511 (iv) may vote at the proxy's discretion 218,430 5,031,055 16. Re-appointment of auditors Total number of proxy votes exercisable by all proxies validly appointed: 888,582,995 222,647,880 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 881,472,131 217,084,502 (ii) was to vote against the resolution 6,897,719 528,530 (iii) was to abstain on the resolution 3,234,833 1,270,629 (iv) may vote at the proxy's discretion 213,145 5,034,848 17. Remuneration of auditors Total number of proxy votes exercisable by all proxies validly appointed: 889,873,419 222,677,772 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 888,590,854 216,808,709 (ii) was to vote against the resolution 1,065,399 842,993 (iii) was to abstain on the resolution 1,944,829 1,240,299 (iv) may vote at the proxy's discretion 217,166 5,026,070

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC AND RIO TINTO LIMITED ON JOINT DECISIONS Rio Tinto plc Rio Tinto Limited 18. Authority to make political donations Total number of proxy votes exercisable by all proxies validly appointed: 883,224,511 222,789,080 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 875,575,346 212,362,864 (ii) was to vote against the resolution 7,438,970 5,448,652 (iii) was to abstain on the resolution 8,586,470 1,119,798 (iv) may vote at the proxy's discretion 210,195 4,977,564 19. 2025 Climate Action Plan Total number of proxy votes exercisable by all proxies validly appointed: 818,067,714 195,568,297 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 765,321,653 174,554,348 (ii) was to vote against the resolution 52,523,568 16,049,262 (iii) was to abstain on the resolution 73,747,019 28,350,580 (iv) may vote at the proxy's discretion 222,493 4,964,687 21/24. Shareholder requisitioned resolution1 Total number of proxy votes exercisable by all proxies validly appointed: 883,139,080 222,271,129 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 184,299,258 30,577,313 (ii) was to vote against the resolution 698,568,141 188,834,971 (iii) was to abstain on the resolution 8,679,257 1,647,747 (iv) may vote at the proxy's discretion 271,681 2,858,845 1 Resolution 21 in the Rio Tinto Limited notice of meeting is the corresponding resolution of Resolution 24 in the Rio Tinto plc notice of meeting.

Notice to ASX/LSE The proxy positions for the resolutions put to the Rio Tinto plc shareholders only were as follows: PROXY POSITION FOR RIO TINTO PLC ONLY MATTERS - RESOLUTIONS FROM MEETING HELD ON 3 APRIL 2025 Rio Tinto plc 20. General authority to allot shares Total number of proxy votes exercisable by all proxies validly appointed: 889,772,551 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 864,979,498 (ii) was to vote against the resolution 24,574,161 (iii) was to abstain on the resolution 2,045,663 (iv) may vote at the proxy's discretion 218,892 21. Disapplication of pre-emption rights Total number of proxy votes exercisable by all proxies validly appointed: 888,803,742 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 884,353,201 (ii) was to vote against the resolution 4,238,456 (iii) was to abstain on the resolution 3,013,775 (iv) may vote at the proxy's discretion 212,085 22. Authority to purchase Rio Tinto plc shares Total number of proxy votes exercisable by all proxies validly appointed: 889,924,810 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 883,950,944 (ii) was to vote against the resolution 5,760,319 (iii) was to abstain on the resolution 1,894,398 (iv) may vote at the proxy's discretion 213,547

Notice to ASX/LSE PROXY POSITION FOR RIO TINTO PLC ONLY MATTERS - RESOLUTIONS FROM MEETING HELD ON 3 APRIL 2025 Rio Tinto plc 23. Notice period for general meetings other than annual general meetings Total number of proxy votes exercisable by all proxies validly appointed: 889,924,505 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 856,796,017 (ii) was to vote against the resolution 32,901,179 (iii) was to abstain on the resolution 1,894,701 (iv) may vote at the proxy's discretion 227,309 The proxy position for the resolution put to the Rio Tinto Limited shareholders only was as follows: PROXY POSITION FOR RIO TINTO LIMITED ONLY MATTERS - RESOLUTIONS FROM MEETING HELD ON 1 MAY 2025 Rio Tinto Limited 20. Renewal of on-market share buy-back authority Total number of proxy votes exercisable by all proxies validly appointed: 222,875,833 Total number of proxy votes in respect of which the appointments specified that the proxy: (i) was to vote for the resolution 215,134,907 (ii) was to vote against the resolution 2,681,844 (iii) was to abstain on the resolution 1,042,499 (iv) may vote at the proxy's discretion 5,059,082