Rio Tinto releases second quarter production results 15 July 2022 Rio Tinto Chief Executive Jakob Stausholm, said: “We strengthened our operational performance at a number of sites, which we will now replicate across the portfolio. The delivery of first ore at Gudai-Darri, our first greenfield mine in the Pilbara for over a decade, increases mine capacity and supports production of our flagship Pilbara Blend™. We also fired the first draw bell at the Oyu Tolgoi underground project in June, and started producing scandium and tellurium. These critical minerals are being extracted from existing waste streams at our titanium operation in Quebec and copper operation in Utah, without the need for new mining. “We are committed to transforming our culture and building better relationships. In May, we signed a Heads of Agreement with the Puutu Kunti Kurrama and Pinikura (PKKP) people which will guide the co- management of PKKP country where mining takes place. “We made progress against our four objectives during the first half and we are determined to further strengthen Rio Tinto while investing to grow in the commodities needed for the energy transition, decarbonise our portfolio, be a partner and employer of choice, maintain our tight capital allocation and continue to pay attractive dividends." Production* Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Pilbara iron ore shipments (100% basis) Mt 79.9 +5 % +12 % 151.4 -2 % Pilbara iron ore production (100% basis) Mt 78.6 +4 % +10 % 150.3 -1 % Bauxite Mt 14.1 +3 % +4 % 27.8 +2 % Aluminium kt 731 -10 % -1 % 1,467 -9 % Mined copper kt 126 +9 % +1 % 252 +7 % Titanium dioxide slag kt 293 -2 % +7 % 566 -2 % IOC iron ore pellets and concentrate Mt 2.6 -4 % +8 % 5.0 -1 % *Rio Tinto share unless otherwise stated Q2 2022 operational highlights and other key announcements • We are focused on the safety, health and wellbeing of our workforce and communities where we operate. Our all-injury frequency rate of 0.35 is an improvement from the second quarter of 2021 (0.42), and in line with the prior quarter (0.35). We have seen an overall decline in COVID-19 cases, with spikes at some of our operations. We continue to monitor the situation and remain vigilant. • Gudai-Darri delivered first ore from the main plant in June. As it ramps up, we expect increased production volumes and improved product mix in the second half, with Gudai-Darri capacity to be reached in 2023. Pilbara operations produced 78.6 million tonnes (100% basis) in the second quarter, 4% higher than the second quarter of 2021. While significantly higher than average rainfall in May impacted mine production, continued focus on mine pit health and commissioning of Gudai-Darri supported a stronger second quarter. Shipments were 79.9 million tonnes (100% basis), 5% higher than the second quarter of 2021. Full year shipments guidance remains unchanged at 320 to 335 million tonnes. • Bauxite production of 14.1 million tonnes was 3% higher than the second quarter of 2021 due to strong operational performance at Weipa as a result of improved plant reliability at Amrun. Notice to ASX/LSE Rio Tinto | Second quarter operations report 1 EXHIBIT 99.1

• Aluminium production of 0.7 million tonnes was 10% lower than the second quarter of 2021 due to reduced capacity at our Kitimat smelter in British Columbia following the strike which commenced in July 2021. A controlled restart began at the end of the second quarter of 2022, with ramp-up progressing subject to plant stability. Production at Boyne smelter in Queensland was impacted due to process instability following COVID-19 related unplanned absences. Production has been stabilised and the cells that have been taken offline are being ramped up over the next 12 months. All of our other smelters continued to have stable performance. Guidance has been lowered to 3.0 to 3.1 million tonnes (previously 3.1 to 3.2 million tonnes). • Mined copper production of 126 thousand tonnes was 9% higher than the second quarter of 2021 due to higher material movement and higher grades and recoveries at Kennecott and Escondida, partly offset by lower grades and recoveries at Oyu Tolgoi as a result of planned mine sequencing. • On 18 May, we announced we had agreed to amend the funding plan with Turquoise Hill Resources (TRQ) in order to provide liquidity of up to $400 million in short-term early advances, while the Special Committee of TRQ evaluates our C$34 per share all-cash proposal to acquire the approximately 49% of the issued and outstanding shares of TRQ that Rio Tinto does not currently own. The deadline in the funding plan for TRQ to conduct an initial equity offering of at least $650 million has also been extended from the end of August to the end of 2022. • Titanium dioxide slag production of 293 thousand tonnes was 2% lower than the second quarter of 2021 with steady performance at Richards Bay Minerals in South Africa and improved stability of operations at Rio Tinto Fer et Titane, Canada. There were some operational disruptions at QIT Madagascar Minerals following cyclones in Madagascar. • Iron Ore Company of Canada (IOC) achieved milestones in May including record safety performance year to date (0.26 AIFR versus 0.73 in 2021) and monthly records for concentrate production and total material moved. Production of pellets and concentrate was 4% lower than the second quarter of 2021 due to the planned annual maintenance shutdown (seven days) which was successfully completed in June (this work was completed in September in 2021). • In the second quarter, we continued to successfully roll out the Rio Tinto Safe Production System (RTSPS) and now have 15 deployments across the business at 11 sites, with 30 rapid improvement projects (Kaizens) either completed or in progress. In the half, there has been a 9% year on year improvement in average operating time across processing plants and drills at deployment sites versus the same period of 2021. We are on track to meet our 2022 target of 30 deployments at 15 sites. • In the second quarter, we entered into additional partnerships and progressed initiatives to decarbonise our business and our value chains. These include a Memorandum of Understanding with Salzgitter to work together towards carbon-free steelmaking, and a strategic equity investment in Nano One - a clean technology innovator in battery materials. • As the result of Queensland Alumina Limited's (QAL) activation of a step-in process following sanction measures by the Australian Government, Rio Tinto has taken on 100% of capacity for as long as the step-in continues. This results in use of Rusal’s 20% share of capacity by Rio Tinto under the tolling arrangement with QAL. This additional output is excluded from the production tables in this report as QAL remains 80% owned by Rio Tinto and 20% owned by Rusal. • Higher rates of inflation have increased our closure liabilities with an impact to underlying earnings. In the first half of 2022, this resulted in increased charges of approximately $400 million pre-tax within underlying earnings compared with the first half of 2021, including a $300 million increase in amortisation of discount, with the remainder impacting underlying EBITDA. • All figures in this report are unaudited. All currency figures in this report are US dollars, and comments refer to Rio Tinto’s share of production, unless otherwise stated. Rio Tinto | Second quarter operations report 2

2022 guidance Rio Tinto share, unless otherwise stated 2021 Actuals H1 2022 Actuals 2022 Previous 2022 Current Pilbara iron ore1 (shipments, 100% basis) (Mt) 322 151.4 320 to 335 Unchanged Bauxite (Mt) 54 27.8 54 to 57 Unchanged Alumina (Mt) 7.9 3.8 8.0 to 8.4 7.6 to 7.8 Aluminium (Mt) 3.2 1.5 3.1 to 3.2 3.0 to 3.1 Mined copper (kt) 494 252 500 to 575 Unchanged Refined copper (kt) 202 104 230 to 290 Unchanged Diamonds2 (M carats) 3.8 2.1 5.0 to 6.0 4.5 to 5.0 Titanium dioxide slag (Mt) 1.0 0.6 1.1 to 1.4 Unchanged IOC3 iron ore pellets and concentrate (Mt) 9.7 5.0 10.0 to 11.0 Unchanged Boric oxide equivalent (Mt) 0.5 0.3 ~0.5 Unchanged 1Pilbara shipments guidance remains dependent on risks around ramp-up of new mines and management of cultural heritage. 2Reflects 100% ownership of Diavik (previously 60%) from 1st November 2021. 3Iron Ore Company of Canada. • Iron ore shipments and bauxite production guidance remain subject to weather and market conditions. • Our guidance assumes development of the COVID-19 pandemic does not lead to government-imposed restrictions and widespread protracted cases, which could result in a significant number of our production and maintenance critical workforce and contractor base being unable to work due to illness and/or isolation requirements. This risk extends to prolonged interruption of service from a key partner or supplier which could lead to severely constrained operational activity of a key asset or project. • Pilbara shipments guidance remains dependent on ramp-up of Gudai-Darri and Robe Valley, availability of skilled labour and management of cultural heritage, including any impacts from the Aboriginal Cultural Heritage Act 2021. Operating costs • Pilbara iron ore 2022 unit cost guidance of $19.5-$21.0 per tonne remains unchanged. Operating cost guidance is based on A$:US$ exchange rate of 0.71 (previously 0.75) and excludes COVID-19 response costs. • Copper C1 unit cost guidance in 2022 is unchanged at 130-150 US cents/lb. Aluminium modelling To assist with modelling of aluminium operating costs during a volatile price environment for raw materials we provide the following breakdown and sensitivities for the alumina and aluminium metal segments (Primary Metal and Pacific Aluminium). This excludes the effect of intra and inter segment eliminations on group profit. Higher raw material prices are also increasing inventory balances. Alumina refining Production cash cost (%) FY 21 H1 22 Bauxite 38 32 Conversion 34 33 Caustic 14 22 Energy 14 13 Total 100 100 Rio Tinto | Second quarter operations report 3

Input costs (nominal) H1 21 Index price H2 21 Index price H1 22 Index price FY 22 Annual cost sensitivity impact on underlying EBITDA Caustic soda1 ($/t) 274 535 675 $10m per $10/t Natural gas2 ($/mmbtu) 2.85 4.59 6.02 $4m per $0.10/GJ Brent oil ($/bbl) 64.6 76.3 105.9 $2m per $10/bbl 1North East Asia FOB | 2Henry Hub Aluminium smelting Production cash cost (%) FY 21 H1 22 Alumina 41 41 Power 21 20 Conversion 21 20 Carbon 15 17 Materials 2 2 Total 100 100 Input costs (nominal) H1 21 Index price H2 21 Index price H1 22 Index price FY 22 Annual cost sensitivity impact on underlying EBITDA Alumina1 ($/t) 288 369 395 $64m per $10/t Petroleum coke2 ($/t) 373 491 667 $11m per $10/t Coal tar pitch3 ($/t) 748 818 1,103 $2m per $10/t 1LME Australia | 2US Gulf FOB | 3North America FOB Rio Tinto | Second quarter operations report 4

Investments, growth and development projects • We continue to proactively manage COVID-19 and prioritise work across critical projects. The easing of various interstate and international border restrictions during the first half of 2022 has enabled increased movement of people and goods to our sites, and at some sites improved access to skilled resources. Capital expenditure for 2022 for our existing operations remains unchanged at around $8.0 billion. Capital expenditure for 2023 and 2024 is still expected to be between $9.0 and $10.0 billion annually, which includes the ambition to invest up to $3.0 billion in growth per year, depending on opportunities. The guidance includes cumulative investment of $1.5 billion to decarbonise our assets from 2022 to 2024. • Exploration and evaluation expense in the first half of 2022 was $367 million, $43 million (13%) higher than the first half of 2021, with ramp-up of activities in Guinea, Argentina and Australia. Pilbara mine projects • At Gudai-Darri, first ore via the main plant was delivered in June and all major elements of the process plant have been commissioned. Production from the mine will continue to ramp up through the remainder of this year, reaching full capacity in 2023. • At Robe Valley, Mesa A wet plant performance stabilised throughout the period and rectification works remain on track for completion in the third quarter. Oyu Tolgoi underground project1 Technical progress • A cost and schedule reforecast was completed in June 2022 resulting in a total project cost estimate of $7.06 billion, which remains under review by the Oyu Tolgoi Board. This is an increase of $0.3 billion against the 2020 Definitive Estimate, which is largely related to COVID-19 disruptions. The 2022 reforecast assumes there are no further COVID-19 disruptions from June 2022. • The first drawbell of the Hugo North underground mine was fired in June. The undercut progression remains on track to achieve first sustainable production from Panel 0 in the first half of 2023. • Shafts 3 and 4 have been delayed due to COVID-19 restrictions and reprioritisation of the mobilised workforce, as previously reported. However progress has been made in the quarter and the shafts are now at depths of 174 metres and 276 metres, respectively. Both shafts are now expected to be commissioned in the first half of 2024, 15 months later than the 2020 Definitive Estimate (previously nine months delay). • Study work for Panels 1 and 2 (which are required to support the ramp-up to 95,000 tonnes of ore per day) is expected to be completed in the first half of 2023 and will incorporate any ventilation impacts due to the shaft 3 and 4 delays. Other key projects and exploration and evaluation • The Zulti South project in South Africa remains on full suspension. • At the Kemano hydropower tunnel project in British Columbia water flow was achieved through the second tunnel powerhouse in June following completion of tunnel construction works. This project will ensure the long-term, sustainable operation of the Kitimat aluminium smelter. • At the Resolution Copper project in Arizona, we are working with the US Forest Service to progress the Final Environmental Impact Statement (FEIS) and complete actions necessary for the land exchange. We also continue to advance partnership discussions with several of the federally-recognised Tribes that are participating in the formal consultation process on the FEIS and land exchange. We are aware of the Ninth Circuit’s decision to uphold the lower court ruling denying Apache Stronghold’s request for injunctive relief. We are encouraged by the significant local support for the project but respect the views of groups who oppose it, and will continue our efforts to address and mitigate these concerns. • At the Winu copper-gold project in Western Australia, a programme of work is ongoing to supplement our understanding of the deposit and the environmental and cultural heritage impacts in advance of submitting the regulatory approval requests. We also continue to strengthen our partnerships with Traditional Owners and advance agreement making. Rio Tinto | Second quarter operations report 5

• At the Simandou iron ore project in Guinea2, project activities have stopped following an order from the Government of Guinea to all parties to stop work. Engagement with the Government and WCS continues towards the resumption of formal negotiations and project activities. We remain committed to delivering Simandou in accordance with international ESG standards, ensuring that the project results in sustainable benefits to Guinea and its people, along with our shareholders and customers. • At the Jadar lithium-borate project in Serbia, we are continuing to explore all options. We acknowledge the concerns from local communities and are engaging meaningfully to explore ways to address them. • The acquisition of the Rincon lithium project in Argentina was completed at the end of March 2022, and integration is well underway. We are undertaking engagement with communities, the province of Salta and the Government of Argentina to ensure an open and transparent dialogue with stakeholders about the work planned, including possible pathways for a smaller start-up to accelerate market entry. Detailed studies are progressing. 1The submission of Oyu Tolgoi LLC’s updated Mongolian Feasibility Study remains under discussion with the Ministry of Mining, the Minerals Council and the Technical Working Group appointed by the Ministry of Mining. 2Correction to the statement in the quarterly report publication on 20 April 2022 which incorrectly quoted board approval in May rather than March. ‘In March, the Rio Tinto Board provided in-principle approval of this path forward and we continue to progress jointly with WCS to deliver a definitive agreement within 60 days of the framework agreement’. Rio Tinto | Second quarter operations report 6

Sustainability highlights We continue to focus on becoming a more outward-looking and humane company, ensuring that everyone at Rio Tinto can count on a safe, respectful and inclusive workplace. We are on track to achieve our target to increase female representation (including in senior leadership) by two percentage points each year. In the first half, representation of women increased by one percentage point to 22.6% of total workforce, or 11,300, a 11% increase versus December 2021. To date, over 57% of our leaders have either registered for or completed the Everyday Respect training. We are also in the process of setting up our new Business Conduct Office to enable a more human centric investigation response. On 7 June, we announced that more than 3,000 women across Australia and New Zealand had applied for roles with Rio Tinto, following the launch of recruitment campaigns targeting women who had not previously worked in the mining industry. In Western Australia, the Transferable Pathways campaign, which launched in May, attracted about 1,600 responses. On 23 June, we released our 2021 Statement on Modern Slavery. The report is our sixth in line with United Kingdom modern slavery reporting legislation and our second under Australian legislation. It highlights how we are identifying and addressing modern slavery risks throughout Rio Tinto and our supply chain and is part of our commitment to respect human rights, which includes freedom from all forms of modern slavery. Communities & Social Performance (CSP) In the second quarter, we recognised two years since the destruction of the rock shelters on the land of the Puutu Kunti Kurrama and Pinikura (PKKP) people at our Brockman iron ore mine in the Pilbara. We are committed to transforming our culture, building better relationships and ensuring cultural heritage is understood, valued and better protected. In May, the PKKP Aboriginal Corporation entered a co- management Heads of Agreement with Rio Tinto. This agreement is an important step towards rebuilding our relationship with the PKKP people and sets out how we will work together in partnership on a co- management approach to mining activities on PKKP Country. We also continue to work to remediate and protect the Juukan Gorge area under the guidance of the Puutu Kunti Kurrama Traditional Owners. We continued to build on our relationship reset in Mongolia, with the Oyu Tolgoi Board approving a $50 million five-year funding programme to support the long-term, sustainable development of Khanbogd town - our neighbouring host community in the South Gobi region. In July, we signed a Memorandum of Understanding (MOU) with four Weipa region Traditional Owner groups detailing an agreed consultation process around closure planning for the East Weipa bauxite mine. The MOU was jointly developed by Traditional Owners and Rio Tinto and lays a path regarding the eventual return of their lands after mining at East Weipa ceases operation in 2024. In June, we made a $1 million donation to UNICEF to support global equitable access to COVID-19 vaccines. We worked with UNICEF to better understand where our support could be utilised, focusing on countries where we have a close connection to the local communities and where there are weaker health systems. These countries include Mongolia, South Africa, Madagascar and Guinea. This is the final amount from our $25 million commitment announced in 2020. In late 2021, a joint Committee was formed to oversee a detailed independent impact assessment of the Panguna mine in Bougainville, Papua New Guinea, to identify and better understand the environmental and human rights impacts of the mine. The Committee, which includes representatives from the Autonomous Bougainville Government, Papua New Guinea Government, community members and landowners, the Human Rights Law Centre, Bougainville Copper Limited and Rio Tinto, has met three times since its establishment and the meetings have been constructive and collaborative. In the second half of the year, the Committee plans to finalise selection and endorsement of the consulting firm to undertake the impact assessment over the ensuing 18-24 months. Key highlights from the quarter are outlined above, with further information available on our website. Rio Tinto | Second quarter operations report 7

Climate change, product stewardship and our value chain We progressed initiatives in the second quarter working to decarbonise our business and actively develop technologies to decarbonise our value chains. • We continued extensive planning and study work to identify preferred locations for wind and solar energy developments to be integrated into our Pilbara microgrid. We are progressing detailed planning for further engineering, environmental and heritage studies on these sites, with a particular focus on our proposed solar farm of around 100MW near Karratha, one of the initial sites within our 1GW programme. We continue to engage with the Western Australian Government, Traditional Owners and other stakeholders. • On 6 May, we announced we had produced a first batch of high purity scandium oxide at our Rio Tinto Fer et Titane commercial scale demonstration plant in Sorel-Tracy, becoming the first North American producer of this critical mineral, which is notably used in solid oxide fuel cells and in aluminium alloys. • On 11 May, we announced we had started producing tellurium at our Kennecott copper operation in Utah, becoming one of only two United States producers of the critical mineral used in advanced thin film photovoltaic solar panels. • On 12 May, we announced eight technology innovators’ submissions have been selected to progress beyond the Charge On Innovation Challenge. The global challenge, launched by BHP, Rio Tinto and Vale, seeks to accelerate commercialisation of effective solutions for charging large electric haul trucks while simultaneously demonstrating there is an emerging market for these solutions in mining. The winners are collaborating with interested mining companies, Original Equipment Manufacturers and investors to accelerate the technology development to support the future roll-out of zero-emissions fleets. • On 23 May, we announced a one-year biofuel trial with bp to help reduce carbon emissions from Rio Tinto’s marine fleet. Under the trial, bp is supplying Rio Tinto with marine biofuel for approximately 12 months. The fuel will be trialled on Rio Tinto’s RTM Tasman vessel on a mix of Transatlantic and Atlantic-Pacific routes, in one of the longest-duration marine biofuel trials to date. The results of the trial will help Rio Tinto study ways to reduce its carbon emissions from its marine fleet and inform its future biofuel strategy. • On 7 June, we announced a Memorandum of Understanding (MOU) with Salzgitter to work together towards carbon-free steelmaking. Under the MOU, Rio Tinto and Salzgitter will explore optimisation of iron ore pellets, lump and fines for use in hydrogen direct reduction steelmaking. The companies will also explore the potential for greenhouse gas emission certification across the steel value chain. • On 8 June, we announced a call for proposals to develop large-scale wind and solar power in Central and Southern Queensland to power our aluminium assets, help meet our climate change ambitions and further encourage renewable development and industry in the region. We are looking for up to 4GW of renewable energy to support the repowering of our aluminium assets in Gladstone. This is an outcome of the Statement of Cooperation signed with the Queensland Government in October 2021. • On 9 June, we announced a strategic equity investment of $10 million in Nano One - a clean technology innovator in battery materials. This partnership and funding will accelerate Nano One’s multi-cathode commercialisation strategy and support cathode active materials manufacturing in Canada for a cleaner and more efficient battery supply chain for North American and overseas markets. • On 29 June, we announced in partnership with Corona Canada, the launch of Canada’s first specially-marked, low carbon beverage can, manufactured by Ball Corporation. The cans, now available through a pilot in Ontario, were made using aluminium from Rio Tinto and leveraging ELYSISTM technology. As part of this limited release, 1.2 million cans were produced with a QR code to inspire consumers to learn more about the cans’ low carbon footprint. Rio Tinto | Second quarter operations report 8

Our markets The economic outlook is weakening due to the Russia-Ukraine war, tighter monetary policy to curb rising inflation, and targeted COVID-19 restrictions in China. Prices for our commodities decreased in the quarter, amidst growing recession fears and a decline in consumer confidence. Trade disruptions, food protectionism and the global focus on securing energy supplies continue to put pressure on supply chains, which will need to be significantly eased before inflationary pressures subside. • China’s industrial activity troughed in May amid COVID-lockdowns. June recovered but uncertainties remain given the potential for ongoing outbreaks. Economic stability is a focus, but headwinds are considerable from restricted labour and goods movement and a slowing external environment. There has been a more accommodative policy stance to support growth, and more easing measures are expected to support the property, infrastructure, and consumer sectors. • The US economy has been resilient, on the back of healthy consumer spending and a strong labour market. However, the Federal Reserve is moving more aggressively to curb rising inflation expectations. There is therefore increasing risk that a rapid hike in interest rates will subdue demand. • The Eurozone industrial sector has been impacted by supply bottlenecks, higher inputs costs and weakening consumer sentiment, even though the services sector has been positive. Energy security will be a key priority for the region, with measures taken to avert a potential shortfall in energy. • Iron ore Platts CFR prices trended downwards to $120/dmt at the end of the second quarter, even though the average prices were just below $140/dmt year to date. The downward pressure was driven by extended COVID-19 restrictions that impacted China’s downstream steel demand to a greater extent than steel production and iron ore consumption. • The aluminium LME price declined sharply, down 32% at the end of the second quarter to $2,397/t. Following record high prices in the first quarter, the expected disruption to Russian aluminium production did not materialise. Strong aluminium supply and weaker domestic demand in China shifted it to a net export position for aluminium in the first half of 2022. Alumina shifted to a net export position over the same period due to strong growth in domestic refining. The outlook for demand growth has also been dampened by COVID-19 restrictions in China and the reduced consumer sentiment in developed markets. Nevertheless, reported inventories continue to decline and high power prices are limiting production growth outside China. • The copper LME price dropped 20% at the end of the second quarter to $3.74/lb. After reaching a record quarterly average price in the first quarter, prices started trending down in late April, as a wave of uncertainty surrounding the global economy and China’s COVID-zero policy weighed on the prospects for copper demand. Exchange inventories remain at multi-year lows, and mine supply continues to face disruptions, although mine project start-ups in the second half should help alleviate market tightness. • The electric vehicle market continues to enjoy firm growth, despite rising raw material costs and general supply chain issues in the automotive market. After sharp price increases in the previous quarters, lithium carbonate prices stabilised in the second quarter, as supply starts to keep pace with demand. Mine supply growth is expected to pick up further in the second half as idled mine capacity and new projects come online. Rio Tinto | Second quarter operations report 9

Average realised prices achieved for our major commodities Units H1 22 Q2 22 Q1 22 H1 21 FY 21 Pilbara iron ore FOB, $/wmt 110.9 110.7 111.1 154.9 132.3 Pilbara iron ore FOB, $/dmt 120.5 120.3 120.8 168.4 143.8 Aluminium* Metal $/t 3,808 3,727 3,916 2,626 2,899 Copper** US cents per pound 447 441 453 415 424 IOC pellets FOB, $/wmt 199.0 206.3 191.2 218.3 214.4 *LME plus all-in premiums (product and market) **Average realised price for all units sold. Realised price does not include the impact of the provisional pricing adjustments, which negatively impacted revenues in the first half by $140 million (first half 2021 positive impact of $202 million). Rio Tinto | Second quarter operations report 10

IRON ORE Rio Tinto share of production (Million tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Pilbara Blend and SP10 Lump1 19.3 +6 % +13 % 36.4 0 % Pilbara Blend and SP10 Fines1 30.2 +5 % +18 % 55.9 -2 % Robe Valley Lump 1.2 -3 % +12 % 2.2 -12 % Robe Valley Fines 1.9 0 % +9 % 3.6 -12 % Yandicoogina Fines (HIY) 13.4 0 % -8 % 28.0 +4 % Total Pilbara production 66.0 +4 % +10 % 126.1 -1 % Total Pilbara production (100% basis) 78.6 +4 % +10 % 150.3 -1 % Rio Tinto share of shipments (Million tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Pilbara Blend Lump 12.7 -1 % +17 % 23.5 -8 % Pilbara Blend Fines 25.2 -9 % +16 % 46.9 -17 % Robe Valley Lump 1.0 +4 % +44 % 1.6 -16 % Robe Valley Fines 2.3 +5 % +33 % 4.0 -12 % Yandicoogina Fines (HIY) 14.2 +4 % -2 % 28.7 +3 % SP10 Lump1 4.5 +19 % +16 % 8.3 +29 % SP10 Fines1 6.8 +140 % -4 % 13.8 +141 % Total Pilbara shipments2 66.6 +4 % +10 % 126.8 -1 % Total Pilbara shipments (100% basis)2 79.9 +5 % +12 % 151.4 -2 % Total Pilbara Shipments (consolidated basis)2, 3 68.1 +4 % +10 % 129.9 -2 % 1 SP10 includes other lower grade products. 2 Shipments includes material shipped from the Pilbara to our portside trading facility in China which may not be sold onwards by the group in the same period. 3 While Rio Tinto has a 53% net beneficial interest in Robe River Iron Associates, it recognises 65% of the assets, liabilities, sales revenues and expenses in its accounts (as 30% is held through a 60% owned subsidiary and 35% is held through a 100% owned subsidiary). The consolidated basis sales reported here include Robe River Iron Associates on a 65% basis to enable comparison with revenue reported in the financial statements. Pilbara operations First half shipments of 151.4 million tonnes (Rio Tinto share 126.8 million tonnes) were 2% lower than the first half of 2021 due to skilled labour supply constraints, COVID-19 disruptions, first quarter delays of mine replacement projects and significantly higher than average rainfall in May. We are currently experiencing elevated levels of unplanned absences at our Pilbara operations due to COVID-19 case spikes in Western Australia. We produced 150.3 million tonnes (Rio Tinto share 126.1 million tonnes) in the first half, 1% lower than the corresponding period of 2021. While significantly higher than average rainfall in May impacted mine production, continued focus on mine pit health and commissioning of Gudai-Darri supported a stronger second quarter. Gudai-Darri delivered first ore from the main plant in June. As Gudai-Darri continues to ramp-up, we expect increased production volumes and improved product mix in the second half. Full year shipments guidance remains unchanged at 320 to 335 million tonnes. Deployment of the Rio Tinto Safe Production System continues to see encouraging results at West Angelas, Yandicoogina, Tom Price and Brockman 4. Approximately 10% of sales in the second quarter were priced by reference to the prior quarter’s average index lagged by one month. The remainder was sold either on current quarter average, current month average, average of two months, forward month or on the spot market. Approximately 27% of sales in the second quarter were made on a free on board (FOB) basis, with the remainder sold including freight. Rio Tinto | Second quarter operations report 11

Achieved average pricing in the first half of 2022 was $110.9 per wet metric tonne ($154.9 in the first half of 2021) on an FOB basis (equivalent to $120.5 per dry metric tonne, at 8% moisture assumption). This compares to the average first half price for the monthly average Platts index for 62% iron fines converted to an FOB basis of $128.2 per dry metric tonne. China Portside Trading We continue to increase our iron ore portside sales in China, with 14.2 million tonnes of sales in the first half of 2022 (5.4 million tonnes in the first half of 2021). At 30 June, inventory levels are 6.5 million tonnes, including 4.5 million tonnes of Pilbara product (11.4 million tonnes at the end of 2021, including 8.8 million tonnes of Pilbara product). In the first half of 2022 approximately 75% of our portside sales were either screened or blended in Chinese ports. Rio Tinto | Second quarter operations report 12

ALUMINIUM Rio Tinto share of production (‘000 tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Bauxite 14,131 +3 % +4 % 27,757 +2 % Bauxite third party shipments 9,599 +1 % -5 % 19,734 +7 % Alumina 1,864 -7 % -2 % 3,765 -7 % Aluminium 731 -10 % -1 % 1,467 -9 % Bauxite Bauxite production of 14.1 million tonnes was 3% higher than the second quarter of 2021 due to strong operational performance at Weipa as a result of improved plant reliability at Amrun. We shipped 9.6 million tonnes of bauxite to third parties in the second quarter, 1% higher than the same period of 2021. Alumina Alumina production of 1.9 million tonnes was 7% lower than the second quarter of 2021. The refineries in the Pacific (Yarwun and Queensland Alumina Limited) have been impacted by a range of challenges in the first half including significant COVID-19 absenteeism, above average rainfall in Eastern Australia, and some unplanned outages and plant reliability. Production at the Vaudreuil refinery in Quebec was impacted by overruns on key shutdowns. Alumina guidance is now expected to be 7.6 to 7.8 million tonnes (previously between 8.0 and 8.4 million tonnes). The focus for the second half is on producing at stronger rates with a more stable environment and improved asset reliability. As the result of Queensland Alumina Limited's (QAL) activation of a step-in process following sanction measures by the Australian Government, Rio Tinto has taken on 100% of capacity for as long as the step-in continues. This results in use of Rusal’s 20% share of capacity by Rio Tinto under the tolling arrangement with QAL. This additional output is excluded from the production tables in this report as QAL remains 80% owned by Rio Tinto and 20% owned by Rusal. Aluminium Aluminium production of 731 million tonnes was 10% lower than the second quarter of 2021 due to reduced capacity at our Kitimat smelter in British Columbia following the strike which commenced in July 2021. A controlled restart began at the end of the second quarter of 2022, with ramp-up progressing subject to plant stability. Production at Boyne smelter in Queensland was impacted due to process instability following COVID-19 related unplanned absences. Production has been stabilised and the cells that have been taken offline are being ramped up over the next 12 months. All of our other smelters continued to have stable performance. Guidance has been lowered to 3.0 to 3.1 million tonnes (previously 3.1 to 3.2 million tonnes). Average realised aluminium prices including premiums for value-added products (VAP) increased 45% to $3,808 per tonne in the first half of 2022 (first half 2021: $2,626 per tonne). The LME price increased by 37% to $3,082 per tonne (first half 2021: $2,246), whilst the mid-west premium duty paid improved 72% to $801 per tonne in the first half of 2022 (first half 2021: $467 per tonne), which is 58% of our total volumes (55% in the first half of 2021). Our VAP sales improved to 52% of primary metal sold in the first half of 2022 (first half 2021: 50%). Product premiums for VAP sales increased, averaging $422 per tonne of VAP sold (first half 2021: $207 per tonne). On 13 July, we announced an investment of $188 million to increase the production capacity for low-carbon, high value aluminium billets at our Alma smelter in Lac-Saint-Jean, Quebec by 202,000 metric tonnes. Around half will come from non value-added products being converted to billets, with the rest from the conversion of already value-added products. The existing casting centre at our Alma plant will be expanded to accommodate new state-of-the-art equipment, including a casting pit and furnaces, allowing a larger portion of the aluminium produced to be converted to higher value billets. Construction will begin in May 2023 and commissioning is expected in the first quarter of 2025. Rio Tinto | Second quarter operations report 13

COPPER Rio Tinto share of production (‘000 tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Mined copper Kennecott 33.9 0 % -28 % 81.0 +21 % Escondida 82.3 +18 % +21 % 150.5 +6 % Oyu Tolgoi 10.2 -17 % +1 % 20.4 -26 % Refined copper Kennecott 32.7 -11 % -19 % 72.9 -11 % Escondida 16.7 +9 % +16 % 31.1 +6 % Kennecott Mined copper production was in line with the second quarter of 2021, with higher grades (averaging 0.53% in the first half) and higher recoveries following the transition to the south wall which was completed in 2021. Mine copper versus the prior quarter was impacted by a planned shutdown in May that extended into June on one of the SAG mills. Refined copper production was 11% lower than the second quarter of 2021 mainly due to the impact of unplanned downtime and labour shortages at the smelter. Refined copper production was 19% lower than the prior quarter due to the planned annual smelter shutdown, which has since restarted. Escondida Mined copper production was 18% higher than the second quarter of 2021 mainly due to 13% expected higher concentrator feed grade and 8% higher throughput which was previously impacted by workforce absenteeism due to COVID-19. Refined production was 9% higher than the corresponding period mainly due to higher ore feed to both leaching processes. Oyu Tolgoi Mined copper production from the open pit was 17% lower than the second quarter of 2021 due to lower copper grades and recoveries as a result of planned mine sequencing and feed from low grade stockpiles. Gold grades were significantly lower than the prior year (0.26% vs 0.50% in 2021). The force majeure declared on shipments from 30 March 2021 has been lifted. Provisional pricing At 30 June 2022, the Group had an estimated 267 million pounds of copper sales that were provisionally priced at 415 cents per pound. This compares with 201 million pounds of open shipments at 31 December 2021, provisionally priced at 436 cents per pound. Provisional pricing adjustments negatively impacted revenues in the first half by $140 million (first half 2021 positive impact of $202 million). This includes mark to market adjustments in respect of shipments open at the period end and final adjustments in respect of shipments for which the price was settled during the period. Rio Tinto | Second quarter operations report 14

MINERALS Rio Tinto share of production (million tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Iron ore pellets and concentrate IOC 2.6 -4 % +8 % 5.0 -1 % Rio Tinto share of production (’000 tonnes) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Minerals Borates - B2O3 content 137 +9 % +12 % 260 +5 % Titanium dioxide slag 293 -2 % +7 % 566 -2 % Rio Tinto share of production (‘000 carats) Q2 2022 vs Q2 2021 vs Q1 2022 H1 2022 vs H1 2021 Diavik1 1,149 +35 % +16 % 2,140 +15 % 1Reflects 100% ownership of Diavik (previously 60%) from 1st November 2021. Iron Ore Company of Canada (IOC) IOC achieved major milestones in May including record safety performance year to date (0.26 AIFR versus 0.73 in 2021) and monthly records for concentrate production and total material moved. Iron ore production was 4% lower than the second quarter of 2021, due to the planned annual maintenance shutdown (seven days) which was successfully completed in June (this work was completed in September in 2021). Borates Borates production in the second quarter was 9% higher than the corresponding period of 2021 with strong production rates and higher grades as well as improved equipment reliability versus the same period in 2021. We expect logistical challenges to continue with elevated congestion at the Port of Los Angeles and shipping rate escalation. Port and rail labour availability is also posing a threat to supply chain stability. Iron and Titanium Titanium dioxide production was 2% lower than the second quarter of 2021, but 7% higher than the prior quarter with steady performance at Richards Bay Minerals in South Africa and improved stability of operations at Rio Tinto Fer et Titane, Canada. There were some operational disruptions at QIT Madagascar Minerals following cyclones in Madagascar. Diamonds At Diavik, our share of carats were 35% higher than the second quarter of 2021 due to the benefit of our increased share of production since taking 100% ownership of Diavik from November 2021, partially offset by maintenance deficit build-up following COVID-19 disruptions. The maintenance deficit build-up and first quarter impacts of COVID-19 has impacted performance in the half and diamonds guidance is now expected to be 4.5 to 5.0 million carats. Rio Tinto | Second quarter operations report 15

EXPLORATION AND EVALUATION Pre-tax and pre-divestment expenditure on exploration and evaluation charged to the profit and loss account in the first half of 2022 was $367 million, compared with $324 million in the first half of 2021. Approximately 39% of this expenditure was incurred by Copper (includes Simandou), 34% by central exploration, 18% by Minerals and 9% by Iron Ore. There were no significant divestments of central exploration properties in the first half of 2022. Exploration highlights Rio Tinto has a strong portfolio of projects with activity in 19 countries across seven commodities in early exploration and studies stages. Rio Tinto Exploration was recognised by the global mineral exploration industry in the quarter as it collected the prestigious Thayer Lindsey Award from the Prospectors and Developers Association of Canada. The award, for the discovery of Winu, recognises an individual or a team of explorationists credited with a recent significant mineral discovery anywhere in the world. The bulk of the exploration expenditure in the second quarter of 2022 focused on copper in Australia, Peru, Zambia and the United States, diamonds in Canada and Angola, and nickel in Canada and Finland. Mine- lease exploration continued at Rio Tinto managed businesses including Pilbara Iron in Australia, Diavik in Canada and Cape York in Australia. The Falcon Project in Saskatchewan, Canada, will remain in care and maintenance until the end of 2022 during which time Rio Tinto will consider alternative commercial options, including potential exit. A summary of activity for the quarter is as follows: A summary of activity for the quarter is as follows: Commodities Studies Stage Advanced projects Greenfield/ Brownfield programmes Bauxite Amargosa, Brazil*, Sanxai, Laos* Melville Island, Australia Cape York, Australia Battery Materials Lithium: Rincon, Argentina Lithium borates: Jadar, Serbia Nickel: Tamarack, US (3rd party operated) Nickel Greenfield: Australia, Canada, Finland, Peru Lithium Greenfield: US, Australia Copper Copper/molybdenum: Resolution, US Copper/Gold: Winu, Australia Copper: La Granja, Peru, Pribrezhniy, Kazakhstan Calibre-Magnum, Australia Copper Greenfield: Australia, Brazil, Canada, Chile, China, Colombia, Finland, Kazakhstan, Namibia, Nicaragua, Laos, Peru, Serbia, US, Zambia Diamonds Falcon, Canada* Diamonds Greenfield: Canada, Angola Diamonds Brownfield: Diavik Iron Ore Pilbara, Australia Simandou, Guinea Pilbara, Australia Greenfield and Brownfield: Pilbara, Australia Minerals Potash: KL262*, Canada Heavy mineral sands: Mutamba, Mozambique Heavy mineral sands Greenfield: Australia, South Africa *Limited activity during the quarter Rio Tinto | Second quarter operations report 16

FORWARD-LOOKING STATEMENT This announcement 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 announcement, 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 and any statements related to the ongoing impact of the COVID-19 pandemic), are forward-looking statements. The words "intend", "aim", "project", "anticipate", "estimate", "plan", "believes", "expects", "may", "would", "should", "could", "will", "target", "set to", "seek", "risk" 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. 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 are levels of actual production during any period, levels of demand and market prices, the ability to produce and transport products profitably, the impact of foreign currency exchange rates on market prices and operating costs, operational problems, political uncertainty and economic conditions in relevant areas of the world, the actions of competitors, activities by governmental authorities such as changes in taxation or regulation, the risks and uncertainties associated with the ongoing impacts of COVID-19 or other pandemic and such other risk factors 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. The above list is not exhaustive. Forward-looking statements should, therefore, be construed in light of such risk factors and undue reliance should not be placed on forward-looking statements, particularly in light of the current economic climate and the significant volatility, uncertainty and disruption caused by the outbreak of COVID-19. These forward-looking statements speak only as of the date of this announcement. 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 announcement 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. Rio Tinto | Second quarter operations report 17

Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, UK Illtud Harri M +44 7920 503 600 David Outhwaite M +44 7787 597 493 Matthew Klar M +44 7796 630 637 Media Relations, Americas Simon Letendre M +1 514 796 4973 Media Relations, Australia Jonathan Rose M +61 447 028 913 Matt Chambers M +61 433 525 739 Jesse Riseborough M +61 436 653 412 Investor Relations, UK Menno Sanderse M +44 7825 195 178 David Ovington M +44 7920 010 978 Clare Peever M: +44 7788 967 877 Investor Relations, Australia Menno Sanderse M +44 7825 195 178 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 7, 360 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 Steve Allen, Rio Tinto’s Group Company Secretary. riotinto.com LEI: 213800YOEO5OQ72G2R82 Classification: 3.1 Additional regulated information required to be disclosed under the laws of a Member State Rio Tinto | Second quarter operations report 18

Rio Tinto production summary Rio Tinto share of production Quarter Half Year % change 2021 Q2 2022 Q1 2022 Q2 2021 H1 2022 H1 Q2 22 vs Q2 21 Q2 22 vs Q1 22 H1 22 vs H1 21 Principal commodities Alumina ('000 t) 2,012 1,901 1,864 4,047 3,765 -7 % -2 % -7 % Aluminium ('000 t) 816 736 731 1,619 1,467 -10 % -1 % -9 % Bauxite ('000 t) 13,699 13,625 14,131 27,264 27,757 +3 % +4 % +2 % Borates ('000 t) 126 123 137 248 260 +9 % +12 % +5 % Copper - mined ('000 t) 115.5 125.5 126.4 236.1 251.9 +9 % +1 % +7 % Copper - refined ('000 t) 52.3 54.7 49.4 111.4 104.1 -5 % -10 % -7 % Diamonds ('000 cts) 851 991 1,149 1,858 2,140 +35 % +16 % +15 % Iron Ore ('000 t) 66,241 62,465 68,640 131,922 131,105 +4 % +10 % -1 % Titanium dioxide slag ('000 t) 298 273 293 577 566 -2 % +7 % -2 % Other Metals & Minerals Gold - mined ('000 oz) 80.1 68.5 52.5 176.5 121.0 -34 % -23 % -31 % Gold - refined ('000 oz) 43.6 32.2 20.9 100.4 53.1 -52 % -35 % -47 % Molybdenum ('000 t) 1.1 1.1 0.4 6.1 1.5 -63 % -61 % -76 % Salt ('000 t) 1,458 1,595 1,030 2,869 2,625 -29 % -35 % -8 % Silver - mined ('000 oz) 925 1,012 846 1,930 1,858 -9 % -16 % -4 % Silver - refined ('000 oz) 609 577 290 1,421 867 -52 % -50 % -39 % Throughout this report, figures in italics indicate adjustments made since the figure was previously quoted on the equivalent page or reported for the first time. Production figures are sometimes more precise than the rounded numbers shown, hence small differences may result between the total of the quarter figures and the year to date figures. Rio Tinto | Second quarter operations report 19

Rio Tinto share of production Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 ALUMINA Production ('000 tonnes) Jonquière (Vaudreuil) 100 % 349 325 338 334 325 701 659 Jonquière (Vaudreuil) specialty Alumina plant 100 % 28 29 28 25 30 50 55 Queensland Alumina 80 % 756 738 727 704 697 1,499 1,401 São Luis (Alumar) 10 % 97 75 99 94 91 192 185 Yarwun 100 % 782 770 719 745 721 1,604 1,465 Rio Tinto total alumina production 2,012 1,937 1,911 1,901 1,864 4,047 3,765 ALUMINIUM Production ('000 tonnes) Australia - Bell Bay 100 % 47 48 48 46 44 93 91 Australia - Boyne Island 59 % 75 75 75 73 61 149 134 Australia - Tomago 52 % 75 77 78 75 75 150 150 Canada - six wholly owned 100 % 391 343 325 318 323 776 641 Canada - Alouette (Sept-Îles) 40 % 63 64 63 62 63 125 124 Canada - Bécancour 25 % 29 29 30 28 29 57 57 Iceland - ISAL (Reykjavik) 100 % 51 52 52 50 50 99 100 New Zealand - Tiwai Point 79 % 65 67 67 66 66 130 132 Oman - Sohar 20 % 20 20 20 19 20 39 39 Rio Tinto total aluminium production 816 774 757 736 731 1,619 1,467 BAUXITE Production ('000 tonnes) (a) Gove 100 % 3,030 3,067 2,787 3,093 2,637 5,909 5,731 Porto Trombetas 12 % 364 332 416 240 308 618 548 Sangaredi (b) 1,755 1,763 1,704 1,765 1,946 3,642 3,710 Weipa 100 % 8,550 8,805 8,188 8,527 9,240 17,095 17,768 Rio Tinto total bauxite production 13,699 13,967 13,095 13,625 14,131 27,264 27,757 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. (b) Rio Tinto has a 22.95% shareholding in the Sangaredi mine but benefits from 45.0% of production. Rio Tinto | Second quarter operations report 20

Rio Tinto share of production Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 BORATES Production ('000 tonnes B2O3 content) Rio Tinto Borates - borates 100 % 126 123 117 123 137 248 260 COPPER Mine production ('000 tonnes) (a) Bingham Canyon 100 % 33.7 42.8 49.7 47.1 33.9 67.0 81.0 Escondida 30 % 69.5 68.4 69.6 68.2 82.3 141.6 150.5 Oyu Tolgoi (b) 34 % 12.3 14.1 13.0 10.2 10.2 27.5 20.4 Rio Tinto total mine production 115.5 125.2 132.3 125.5 126.4 236.1 251.9 Refined production ('000 tonnes) Escondida 30 % 15.3 14.7 14.5 14.4 16.7 29.3 31.1 Rio Tinto Kennecott (c) 100 % 36.9 35.7 25.5 40.2 32.7 82.1 72.9 Rio Tinto total refined production 52.3 50.5 40.0 54.7 49.4 111.4 104.1 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. (b) Rio Tinto owns a 33.52% indirect interest in Oyu Tolgoi through its 50.79% interest in Turquoise Hill Resources Ltd. (c) We continue to process third party concentrate to optimise smelter utilisation, including 2.9 thousand tonnes of cathode produced from purchased concentrate in year-to-date 2022. Purchased and tolled copper concentrates are excluded from reported production figures and production guidance. Sales of cathodes produced from purchased concentrate are included in reported revenues. DIAMONDS Production ('000 carats) Diavik (a) 100 % 851 834 1,155 991 1,149 1,858 2,140 (a) On 17 November 2021, Rio Tinto’s ownership interest in Diavik increased from 60% to 100%. Production is reported including this change from 1 November 2021. GOLD Mine production ('000 ounces) (a) Bingham Canyon 100 % 30.5 38.1 34.7 37.8 22.8 66.7 60.6 Escondida 30 % 11.7 12.6 12.9 10.9 13.7 23.1 24.6 Oyu Tolgoi (b) 34 % 37.9 43.8 26.3 19.8 16.0 86.7 35.8 Rio Tinto total mine production 80.1 94.5 73.9 68.5 52.5 176.5 121.0 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 43.6 44.5 31.5 32.2 20.9 100.4 53.1 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. (b) Rio Tinto owns a 33.52% indirect interest in Oyu Tolgoi through its 50.79% interest in Turquoise Hill Resources Ltd. Rio Tinto | Second quarter operations report 21

Rio Tinto share of production Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 IRON ORE Production ('000 tonnes) (a) Hamersley mines (b) 50,333 55,634 55,049 47,678 52,636 99,647 100,315 Hope Downs 50 % 5,960 6,500 6,567 5,830 6,385 11,576 12,215 Iron Ore Company of Canada 59 % 2,721 2,163 2,498 2,404 2,603 5,066 5,007 Robe River - Pannawonica (Mesas J and A) 53 % 3,090 3,721 3,196 2,774 3,054 6,596 5,828 Robe River - West Angelas 53 % 4,137 4,056 5,252 3,779 3,961 9,037 7,740 Rio Tinto iron ore production ('000 tonnes) 66,241 72,074 72,561 62,465 68,640 131,922 131,105 Breakdown of Production: Pilbara Blend and SP10 Lump (c) 18,265 19,742 20,374 17,081 19,309 36,315 36,391 Pilbara Blend and SP10 Fines (c) 28,796 30,825 32,081 25,658 30,240 57,042 55,898 Robe Valley Lump 1,219 1,423 1,152 1,051 1,180 2,527 2,230 Robe Valley Fines 1,871 2,297 2,044 1,724 1,874 4,070 3,598 Yandicoogina Fines (HIY) 13,369 15,623 14,412 14,548 13,433 26,903 27,981 Pilbara iron ore production ('000 tonnes) 63,520 69,910 70,063 60,061 66,037 126,856 126,098 IOC Concentrate 1,154 829 1,009 962 1,282 2,025 2,244 IOC Pellets 1,567 1,335 1,489 1,442 1,321 3,041 2,763 IOC iron ore production ('000 tonnes) 2,721 2,163 2,498 2,404 2,603 5,066 5,007 Breakdown of Shipments: Pilbara Blend Lump 12,830 13,018 12,832 10,809 12,684 25,672 23,493 Pilbara Blend Fines 27,795 28,901 24,308 21,698 25,156 56,360 46,855 Robe Valley Lump 934 962 1,061 675 971 1,959 1,645 Robe Valley Fines 2,190 2,567 2,237 1,731 2,309 4,591 4,040 Yandicoogina Fines (HIY) 13,640 14,906 14,121 14,487 14,201 27,862 28,689 SP10 Lump (c) 3,748 4,826 4,841 3,827 4,456 6,411 8,283 SP10 Fines (c) 2,817 4,063 10,684 7,067 6,775 5,740 13,843 Pilbara iron ore shipments ('000 tonnes) (d) 63,953 69,242 70,084 60,295 66,552 128,595 126,847 Pilbara iron ore shipments - consolidated basis ('000 tonnes) (d) (f) 65,627 71,131 71,972 61,818 68,114 132,058 129,931 IOC Concentrate 1,048 1,054 989 600 1,083 2,067 1,683 IOC Pellets 1,303 1,374 1,711 1,412 1,484 2,780 2,896 IOC Iron ore shipments ('000 tonnes) (d) 2,352 2,428 2,700 2,012 2,567 4,847 4,580 Rio Tinto iron ore shipments ('000 tonnes) (d) 66,305 71,671 72,784 62,307 69,119 133,442 131,427 Rio Tinto iron ore sales ('000 tonnes) (e) 67,145 70,967 69,489 66,683 71,258 132,697 137,941 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. (b) Includes 100% of production from Paraburdoo, Mt Tom Price, Western Turner Syncline, Marandoo, Yandicoogina, Brockman, Nammuldi, Silvergrass, Channar and the Eastern Range mines. Whilst Rio Tinto owns 54% of the Eastern Range mine, under the terms of the joint venture agreement, Hamersley Iron manages the operation and is obliged to purchase all mine production from the joint venture and therefore all of the production is included in Rio Tinto's share of production. Rio Tinto’s ownership interest in Channar mine increased from 60% to 100%, following conclusion of its joint venture with Sinosteel Corporation upon reaching planned 290 million tonnes production on 22 October 2020. (c) SP10 includes other lower grade products. (d) Shipments includes material shipped to our portside trading facility in China which may not be sold onwards in the same period. (e) Represents the difference between amounts shipped to portside trading and onward sales from portside trading, and third party volumes sold. (f) While Rio Tinto has a 53% net beneficial interest in Robe River Iron Associates, it recognises 65% of the assets, liabilities, sales revenues and expenses in its accounts (as 30% is held through a 60% owned subsidiary and 35% is held through a 100% owned subsidiary). The consolidated basis sales reported here include Robe River Iron Associates on a 65% basis to enable comparison with revenue reported in the financial statements. Rio Tinto | Second quarter operations report 22

Rio Tinto share of production Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 MOLYBDENUM Mine production ('000 tonnes) (a) Bingham Canyon 100 % 1.1 0.4 1.1 1.1 0.4 6.1 1.5 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. SALT Production ('000 tonnes) Dampier Salt 68 % 1,458 1,508 1,471 1,595 1,030 2,869 2,625 SILVER Mine production ('000 ounces) (a) Bingham Canyon 100 % 476 639 589 561 385 1,000 945 Escondida 30 % 370 387 439 381 393 766 774 Oyu Tolgoi (b) 34 % 79 84 80 71 67 164 138 Rio Tinto total mine production 925 1,110 1,108 1,012 846 1,930 1,858 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 609 733 516 577 290 1,421 867 (a) Mine production figures for metals refer to the total quantity of metal produced in concentrates, leach liquor or doré bullion irrespective of whether these products are then refined onsite, except for the data for bauxite and iron ore which represent production of marketable quantities of ore plus concentrates and pellets. (b) Rio Tinto owns a 33.52% indirect interest in Oyu Tolgoi through its 50.79% interest in Turquoise Hill Resources Ltd. TITANIUM DIOXIDE SLAG Production ('000 tonnes) Rio Tinto Iron & Titanium (a) 100 % 298 209 228 273 293 577 566 (a) Quantities comprise 100% of Rio Tinto Fer et Titane and Rio Tinto's 74% interest in Richards Bay Minerals (RBM). ERA ceased processing operations on 8 January 2021, as required by the Ranger Authority. No data for these operations are included in the Share of production table. Production figures are sometimes more precise than the rounded numbers shown, hence small differences may result between the total of the quarter figures and the year to date figures. Rio Tinto percentage interest shown above is at 30 June 2022. Rio Tinto | Second quarter operations report 23

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 ALUMINA Smelter Grade Alumina - Aluminium Group Alumina production ('000 tonnes) Australia Queensland Alumina Refinery - Queensland 80 % 945 922 909 880 871 1,874 1,751 Yarwun refinery - Queensland 100 % 782 770 719 745 721 1,604 1,465 Brazil São Luis (Alumar) refinery 10 % 968 748 993 940 910 1,920 1,850 Canada Jonquière (Vaudreuil) refinery - Quebec (a) 100 % 349 325 338 334 325 701 659 (a) Jonquière’s (Vaudreuil’s) production shows smelter grade alumina only and excludes hydrate produced and used for specialty alumina. Speciality Alumina - Aluminium Group Speciality alumina production ('000 tonnes) Canada Jonquière (Vaudreuil) plant – Quebec 100 % 28 29 28 25 30 50 55 Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 24

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 ALUMINIUM Primary Aluminium Primary aluminium production ('000 tonnes) Australia Bell Bay smelter - Tasmania 100 % 47 48 48 46 44 93 91 Boyne Island smelter - Queensland 59 % 127 125 126 123 103 251 226 Tomago smelter - New South Wales 52 % 146 150 150 145 145 292 291 Canada Alma smelter - Quebec 100 % 117 119 119 117 121 234 237 Alouette (Sept-Îles) smelter - Quebec 40 % 157 159 157 154 157 312 311 Arvida smelter - Quebec 100 % 42 42 43 42 42 83 84 Arvida AP60 smelter - Quebec 100 % 15 15 15 14 14 30 28 Bécancour smelter - Quebec 25 % 117 115 119 111 117 229 228 Grande-Baie smelter - Quebec 100 % 57 58 58 57 58 113 115 Kitimat smelter - British Columbia 100 % 97 46 25 25 26 191 50 Laterrière smelter - Quebec 100 % 63 63 64 63 63 125 125 Iceland ISAL (Reykjavik) smelter 100 % 51 52 52 50 50 99 100 New Zealand Tiwai Point smelter 79 % 82 84 85 83 83 164 166 Oman Sohar smelter 20 % 99 100 100 97 98 196 195 Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 25

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 BAUXITE Bauxite production ('000 tonnes) Australia Gove mine - Northern Territory 100 % 3,030 3,067 2,787 3,093 2,637 5,909 5,731 Weipa mine - Queensland 100 % 8,550 8,805 8,188 8,527 9,240 17,095 17,768 Brazil Porto Trombetas (MRN) mine 12 % 3,033 2,764 3,469 2,000 2,569 5,150 4,569 Guinea Sangaredi mine (a) 23 % 3,899 3,919 3,786 3,922 4,323 8,093 8,245 Rio Tinto share of bauxite shipments Share of total bauxite shipments ('000 tonnes) 13,602 14,201 13,031 13,876 14,054 27,046 27,930 Share of third party bauxite shipments ('000 tonnes) 9,493 10,091 8,988 10,135 9,599 18,517 19,734 (a) Rio Tinto has a 22.95% shareholding in the Sangaredi mine but benefits from 45.0% of production. Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 BORATES Rio Tinto Borates - borates 100 % US Borates ('000 tonnes) (a) 126 123 117 123 137 248 260 (a) Production is expressed as B2O3 content. Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 COPPER & GOLD Escondida 30 % Chile Sulphide ore to concentrator ('000 tonnes) 31,903 33,528 35,787 30,235 34,318 64,556 64,553 Average copper grade (%) 0.78 0.73 0.71 0.81 0.87 0.78 0.84 Mill production (metals in concentrates): Contained copper ('000 tonnes) 202.8 201.2 203.6 191.5 239.5 410.7 430.9 Contained gold ('000 ounces) 38.9 42.0 42.9 36.3 45.8 76.8 82.1 Contained silver ('000 ounces) 1,234 1,291 1,462 1,270 1,311 2,552 2,581 Recoverable copper in ore stacked for leaching ('000 tonnes) (a) 28.7 26.7 28.4 35.9 34.8 61.2 70.7 Refined production from leach plants: Copper cathode production ('000 tonnes) 51.1 49.0 48.4 48.1 55.7 97.8 103.8 (a) The calculation of copper in material mined for leaching is based on ore stacked at the leach pad. Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 26

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 COPPER & GOLD (continued) Rio Tinto Kennecott Bingham Canyon mine 100 % Utah, US Ore treated ('000 tonnes) 7,918 9,995 9,809 10,130 6,862 17,972 16,991 Average ore grade: Copper (%) 0.48 0.47 0.55 0.51 0.55 0.42 0.53 Gold (g/t) 0.21 0.22 0.21 0.19 0.17 0.21 0.18 Silver (g/t) 2.64 2.80 2.55 2.36 2.39 2.45 2.37 Molybdenum (%) 0.021 0.017 0.020 0.021 0.017 0.042 0.019 Copper concentrates produced ('000 tonnes) 141 180 187 176 136 281 312 Average concentrate grade (% Cu) 23.9 23.7 26.3 26.8 24.9 23.8 26.0 Production of metals in copper concentrates: Copper ('000 tonnes) (a) 33.7 42.8 49.7 47.1 33.9 67.0 81.0 Gold ('000 ounces) 30.5 38.1 34.7 37.8 22.8 66.7 60.6 Silver ('000 ounces) 476 639 589 561 385 1,000 945 Molybdenum concentrates produced ('000 tonnes): 2.2 1.0 2.2 2.1 0.9 11.6 2.9 Molybdenum in concentrates ('000 tonnes) 1.1 0.4 1.1 1.1 0.4 6.1 1.5 Kennecott smelter & refinery 100 % Copper concentrates smelted ('000 tonnes) 103 165 157 213 152 344 365 Copper anodes produced ('000 tonnes) (b) 23.5 35.7 32.9 45.8 27.9 73.9 73.7 Production of refined metal: Copper ('000 tonnes) (c) 36.9 35.7 25.5 40.2 32.7 82.1 72.9 Gold ('000 ounces) (d) 43.6 44.5 31.5 32.2 20.9 100.4 53.1 Silver ('000 ounces) (d) 609 733 516 577 290 1,421 867 (a) Includes a small amount of copper in precipitates. (b) New metal excluding recycled material. (c) We continue to process third party concentrate to optimise smelter utilisation, including 2.9 thousand tonnes of cathode produced from purchased concentrate in year-to-date 2022. Purchased and tolled copper concentrates are excluded from reported production figures and production guidance. Sales of cathodes produced from purchased concentrate are included in reported revenues. (d) Includes gold and silver in intermediate products. Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 27

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 COPPER & GOLD (continued) Turquoise Hill Resources Oyu Tolgoi mine (a) 34 % Mongolia Ore Treated ('000 tonnes) 9,401 9,336 10,573 9,581 9,685 19,214 19,266 Average mill head grades: Copper (%) 0.47 0.53 0.46 0.40 0.40 0.51 0.40 Gold (g/t) 0.50 0.63 0.38 0.32 0.26 0.59 0.29 Silver (g/t) 1.19 1.29 1.27 1.25 1.15 1.24 1.20 Copper concentrates produced ('000 tonnes) 173.2 191.9 182.7 144.3 146.0 375.1 290.3 Average concentrate grade (% Cu) 21.2 21.9 21.3 21.0 20.9 21.9 21.0 Production of metals in concentrates: Copper in concentrates ('000 tonnes) 36.7 41.9 38.9 30.3 30.6 82.2 60.8 Gold in concentrates ('000 ounces) 113.1 130.8 78.6 59.2 47.6 258.7 106.8 Silver in concentrates ('000 ounces) 235 249 239 211 201 490 412 Sales of metals in concentrates: Copper in concentrates ('000 tonnes) 19.6 46.4 34.4 29.9 35.3 58.6 65.2 Gold in concentrates ('000 ounces) 72.6 149.1 102.2 57.4 67.9 183.4 125.3 Silver in concentrates ('000 ounces) 106 278 192 179 224 313 403 (a) Rio Tinto owns a 33.52% indirect interest in Oyu Tolgoi through its 50.79% interest in Turquoise Hill Resources. Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 DIAMONDS Diavik Diamonds (a) 100 % Northwest Territories, Canada Ore processed ('000 tonnes) 669 643 596 496 537 1,301 1,033 Diamonds recovered ('000 carats) 1,418 1,390 1,356 991 1,149 3,096 2,140 (a) On 17 November 2021, Rio Tinto’s ownership interest in Diavik increased from 60% to 100%. Production is reported including this change from 1 November 2021. Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 28

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 IRON ORE Rio Tinto Iron Ore Western Australia Pilbara Operations Saleable iron ore production ('000 tonnes) Hamersley mines (a) 50,333 55,634 55,049 47,678 52,636 99,647 100,315 Hope Downs 50 % 11,920 13,000 13,133 11,660 12,771 23,152 24,431 Robe River - Pannawonica (Mesas J and A) 53 % 5,830 7,021 6,031 5,234 5,762 12,446 10,996 Robe River - West Angelas 53 % 7,806 7,652 9,909 7,130 7,474 17,052 14,604 Total production ('000 tonnes) 75,889 83,306 84,122 71,703 78,643 152,296 150,346 Breakdown of total production: Pilbara Blend and SP10 Lump (b) 21,946 23,617 24,998 20,827 23,228 43,847 44,055 Pilbara Blend and SP10 Fines (b) 34,743 37,046 38,681 31,094 36,220 69,099 67,314 Robe Valley Lump 2,300 2,686 2,173 1,982 2,226 4,767 4,208 Robe Valley Fines 3,530 4,335 3,857 3,252 3,536 7,679 6,788 Yandicoogina Fines (HIY) 13,369 15,623 14,412 14,548 13,433 26,903 27,981 Breakdown of total shipments: Pilbara Blend Lump 15,631 16,710 16,616 13,626 16,043 31,371 29,669 Pilbara Blend Fines 34,607 36,199 31,620 27,915 32,243 70,384 60,158 Robe Valley Lump 1,762 1,814 2,001 1,273 1,832 3,696 3,105 Robe Valley Fines 4,131 4,843 4,221 3,266 4,357 8,663 7,623 Yandicoogina Fines (HIY) 13,640 14,906 14,121 14,487 14,201 27,862 28,689 SP10 Lump (b) 3,748 4,826 4,841 3,827 4,456 6,411 8,283 SP10 Fines (b) 2,817 4,063 10,684 7,067 6,775 5,740 13,843 Total shipments ('000 tonnes) (c) 76,336 83,360 84,104 71,462 79,907 154,128 151,369 Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 Iron Ore Company of Canada 59 % Newfoundland & Labrador and Quebec in Canada Saleable iron ore production: Concentrates ('000 tonnes) 1,965 1,411 1,718 1,638 2,183 3,449 3,821 Pellets ('000 tonnes) 2,669 2,273 2,535 2,456 2,250 5,178 4,706 IOC Total production ('000 tonnes) 4,634 3,684 4,254 4,094 4,433 8,627 8,527 Shipments: Concentrates ('000 tonnes) 1,785 1,795 1,684 1,022 1,845 3,521 2,867 Pellets ('000 tonnes) 2,220 2,340 2,914 2,405 2,527 4,734 4,932 IOC Total Shipments ('000 tonnes) (c) 4,005 4,136 4,598 3,427 4,372 8,255 7,799 Global Iron Ore Totals Iron Ore Production ('000 tonnes) 80,523 86,990 88,375 75,797 83,076 160,923 158,873 Iron Ore Shipments ('000 tonnes) 80,341 87,496 88,702 74,889 84,279 162,383 159,168 Iron Ore Sales ('000 tonnes) (d) 81,097 86,542 85,256 79,194 86,103 161,388 165,297 (a) Includes 100% of production from Paraburdoo, Mt Tom Price, Western Turner Syncline, Marandoo, Yandicoogina, Brockman, Nammuldi, Silvergrass, Channar and the Eastern Range mines. Whilst Rio Tinto owns 54% of the Eastern Range mine, under the terms of the joint venture agreement, Hamersley Iron manages the operation and is obliged to purchase all mine production from the joint venture and therefore all of the production is included in Rio Tinto's share of production. Rio Tinto’s ownership interest in Channar mine increased from 60% to 100%, following conclusion of its joint venture with Sinosteel Corporation upon reaching planned 290 million tonnes production on 22 October 2020. (b) SP10 includes other lower grade products. (c) Shipments includes material shipped to our portside trading facility in China which may not be sold onwards in the same period. (d) Include Pilbara and IOC sales adjusted for portside trading movements and third party volumes sold. Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 29

Rio Tinto operational data Rio Tinto interest Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 H1 2021 H1 2022 SALT Dampier Salt 68 % Western Australia Salt production ('000 tonnes) 2,132 2,206 2,152 2,333 1,507 4,196 3,840 TITANIUM DIOXIDE SLAG Rio Tinto Iron & Titanium 100 % Canada and South Africa (Rio Tinto share) (a) Titanium dioxide slag ('000 tonnes) 298 209 228 273 293 577 566 (a) Quantities comprise 100% of Rio Tinto Fer et Titane and Rio Tinto's 74% interest in Richards Bay Minerals' production. Ilmenite mined in Madagascar is being processed in Canada. Rio Tinto percentage interest shown above is at 30 June 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Second quarter operations report 30