Rio Tinto releases fourth quarter production results 18 January 2022 Rio Tinto Chief Executive Jakob Stausholm, said: “In 2021 we continued to experience strong demand for our products while operating conditions remained challenging, including due to prolonged COVID-19 disruptions. Despite this, we progressed a number of our projects, including the Pilbara replacement mines, underlining the resilience of the business and the commitment and flexibility of our people, communities and host governments. We are seeing some initial positive results from the implementation of the Rio Tinto Safe Production System, which we will significantly ramp up in 2022, as we continue to work hard to improve our operational performance to become the best operator. “In the fourth quarter we set a new direction for the company and announced a number of partnerships focused on decarbonising the value chain for our products, including green steel. We also entered into a binding agreement to acquire the Rincon lithium project in Argentina, which is strongly aligned with our strategy. These actions will ensure we continue to deliver attractive returns to shareholders, invest in sustaining and growing our portfolio, and progress our ambition to net-zero carbon emissions." Production* Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Pilbara iron ore shipments (100% basis) Mt 84.1 -5 % +1 % 321.6 -3 % Pilbara iron ore production (100% basis) Mt 84.1 -2 % +1 % 319.7 -4 % Bauxite Mt 13.1 -2 % -6 % 54.3 -3 % Aluminium kt 757 -7 % -2 % 3,151 -1 % Mined copper kt 132 0 % +6 % 494 -7 % Titanium dioxide slag kt 228 -16 % +9 % 1,014 -9 % IOC iron ore pellets and concentrate Mt 2.5 -9 % +15 % 9.7 -6 % *Rio Tinto share unless otherwise stated 2021 operational highlights and other key announcements • The safety and well-being of our employees and contractors remains our priority. Fatigue, labour shortages and other pressures from COVID-19 have heightened the safety risk in day-to-day operations and remind us that there is no room for complacency. We experienced our third consecutive year with no fatalities at our managed operations. We are working hard with our partners to achieve the same results at our non-managed assets and marine operations. • Pilbara iron ore production of 319.7 million tonnes (100% basis) was 4% lower than 2020. This is due to above average rainfall in the first half of the year, cultural heritage management and delays in growth and brownfield mine replacement tie-in projects. Pilbara shipments in 2021 were 321.6 million tonnes (100% basis), 3% lower than 2020, and included elevated levels of SP10 product as a result of delays in growth and brownfield mine replacement tie-in projects. • Bauxite production of 54.3 million tonnes was 3% lower than 2020 due to severe wet weather in the first quarter impacting system stability throughout the year, equipment reliability issues and overruns on planned shutdowns at our Pacific operations. • Aluminium production of 3.2 million tonnes was 1% lower than 2020 due to reduced capacity at our Kitimat smelter in British Columbia following the strike which commenced in July 2021. The labour union and employees have reached an agreement with controlled restart in 2022. • Mined copper production of 494 thousand tonnes was 7% lower than 2020 due to lower recoveries and throughput at Escondida as a result of the prolonged impact of COVID-19, partly offset by higher recoveries and grades at Oyu Tolgoi in Mongolia and Kennecott in the US. Notice to ASX/LSE Rio Tinto | Fourth quarter operations report 1 Exhibit 99.1

• Titanium dioxide slag production of 1,014 thousand tonnes was 9% lower than 2020 as a result of community disruptions and subsequent curtailment of operations at Richards Bay Minerals (RBM) coupled with unplanned maintenance and equipment reliability issues at Rio Tinto Fer et Titane (RTFT) in Canada. On 24 August, RBM resumed operations following stabilisation of the security situation, supported by the national and provincial government, as well as substantive engagement with host communities and their traditional authorities. • Production of pellets and concentrate at Iron Ore Company of Canada (IOC) was 6% lower than 2020 due to prolonged labour and equipment availability issues impacting product feed and various other operational challenges throughout the year. • At the Jadar lithium-borate project in Serbia, as a result of delays in the approval of the Exploitation Field Licence (EFL), which is a prerequisite to publish the Environmental Impact Assessment (EIA) and commence the consultation process, we are revising development timelines. Based on current estimates and subject to receiving all relevant approvals, permits and licences, first saleable production is expected to be no earlier than 2027 (previously 2026). • In the fourth quarter, we entered into several partnerships to accelerate decarbonising our own business and the value chains we operate in. In November, we announced the ELYSIS joint venture successfully produced aluminium without any direct greenhouse gas emissions from commercial-size cells. • On 20 October, we outlined the actions being taken to strengthen the business and improve performance. We unveiled a longer-term strategy to ensure we thrive in a decarbonising world and continue to deliver attractive shareholder returns, in line with our policy. • This year, we initiated the Rio Tinto Safe Production System (RTSPS) at five pilot sites, focusing on sustainably unlocking capacity across the system. We are already seeing returns in the first year of rollout including a significant improvement at the Kennecott concentrator since the July deployment compared to the previous 12 months performance. A significantly larger programme is planned for 2022, subject to COVID-19 constraints, with the RTSPS rollout of up to 30 deployments at 15 sites as well as up to 80 rapid improvement projects which aim at improving targeted bottlenecks. • On 28 October, we issued $1.25 billion 30-year fixed rate SEC-registered bonds priced at 2.75%. The proceeds of the new issuance were used to fund the early redemption and extinguishment of the company’s $1.20 billion 3.75% bonds due to mature in June 2025. • On 19 December, we announced the Board of Directors had selected Dominic Barton to succeed Simon Thompson as the new Chair. Dominic will join the Board with effect from 4 April 2022 and be appointed to the role of Chair at the conclusion of the Rio Tinto Limited annual general meeting on 5 May 2022. • On 21 December, we announced we had entered into a binding agreement to acquire the Rincon lithium project in Argentina from Rincon Mining for $825 million. Rincon is one of the largest undeveloped lithium brine projects in the world, located in the heart of the lithium triangle in Salta Province. • Our guidance assumes development of the pandemic does not lead to government-imposed restrictions and widespread protracted cases related to new highly contagious variants with high severity, which could result in a significant number of our production 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. This risk is exacerbated globally by tight labour markets and supply chain delays. • 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 | Fourth quarter operations report 2

2022 production guidance Rio Tinto share, unless otherwise stated 2021 Actuals 2022 Pilbara iron ore1 (shipments, 100% basis) (Mt) 322 320 to 335 Bauxite (Mt) 54 54 to 57 Alumina (Mt) 7.9 8.0 to 8.4 Aluminium (Mt) 3.2 3.1 to 3.2 Mined copper (kt) 494 500 to 575 Refined copper (kt) 202 230 to 290 Diamonds2 (M carats) 3.8 5.0 to 6.0 Titanium dioxide slag (Mt) 1.0 1.1 to 1.4 IOC3 iron ore pellets and concentrate (Mt) 9.7 10.0 to 11.0 Boric oxide equivalent (Mt) 0.5 ~0.5 1Pilbara shipments guidance remains subject to risks around commissioning and 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 pandemic does not lead to government-imposed restrictions and widespread protracted cases related to new highly contagious variants with high severity, which could result in a significant number of our production 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. This risk is exacerbated globally by tight labour markets and supply chain delays. • Pilbara shipments guidance remains subject to commissioning and ramp-up of new mines and management of cultural heritage, including any impacts from the recent changes to the Aboriginal Heritage Act 1972 (WA). We support the strengthening of Aboriginal heritage protection in Western Australia and continue to engage with Traditional Owners regarding current and proposed plans for mining activities, adjusting mine plans where required. Given the quality of our resource, we retain a range of development options in the Pilbara, subject to heritage and environmental approvals. Rio Tinto | Fourth quarter operations report 3

Investments, growth and development projects • We continue to proactively manage COVID-19 and prioritise work across critical projects, as challenges associated with interstate and international border access continue, impacting the availability and movement of people and goods, most notably in Australia and Mongolia. Mitigation plans are in place however there are some delays with the delivery of equipment to sites and access to key personnel. • Exploration and evaluation expense in 2021 was $726 million, $101 million (16%) higher than 2020, with ramp-up of activities in Australia, Europe and Western Africa. Pilbara mine projects • Commissioning and ramp-up of Pilbara growth and brownfield mine replacement projects has been impacted by ongoing COVID-19 restrictions, including labour access and supply chain quality issues. The latter has been exacerbated by an inability to conduct pre-delivery quality assurance and control at international steel and equipment manufacturers due to limitations on travel. • Mining and operational readiness activities are progressing at the Gudai-Darri mine and the railway is operational. The first train was loaded from the mobile crushing and screening facilities in December. First production from the main plant is now expected in the second quarter of 2022, subject to the continuing impacts of COVID-19. • The Western Turner Syncline Phase 2 project achieved first ore in October, in line with previous guidance. At Robe Valley, the autonomous mining truck fleet has been commissioned. Since achieving first ore in August, ongoing wet plant construction and commissioning challenges are impacting production ramp-up. Oyu Tolgoi underground project1 Technical progress • The project is technically and operationally ready for undercut commencement, despite continued COVID-19 constraints in Mongolia. Site accommodation and staffing levels improved in the quarter to between 60% and 70% of planned requirements. The impact on project costs of the additional restrictions related to COVID-19 to the end of December 2021 is estimated to be $175 million. The project has achieved the conveyor to surface decline breakthrough and completed construction of Materials Handling System 1 with commissioning expected to be completed in the coming weeks. • Shaft 4 sinking activities recommenced in October, with advancement now at 148 metres below ground level. Shaft 3 readiness works continue, with sinking commencement expected by the end of the first quarter of 2022, despite some disruptions following an unplanned failure on one of the sinking brake systems. The delay to the commissioning of shafts 3 and 4 is still expected to be approximately nine months per prior guidance based on known COVID-19 impacts to date. Panel 1 and 2 studies will be ongoing throughout 2022. Other updates • Negotiations with the Government of Mongolia are constructive and making positive progress. All key stakeholders have stated that they remain committed to moving the project forward and reaching a long-term solution to the items under discussion. • In December, the updated Resources and Reserves were registered in Mongolia in accordance with Mongolian regulations and approval from Mongolian authorities of the 2022 Annual Mine Plan was received. The updated Feasibility Study (OTFS20) has been submitted to the relevant governmental agencies of Mongolia. • As a result of COVID-19 impacts and outstanding non-technical undercut criteria, first sustainable production will be no earlier than January 2023, subject to the timing of commencement of the undercut. The full impact on the cost of the integrated project is subject to further analysis once we have clarity on the timeline around the completion of the undercut criteria and ongoing COVID-19 restrictions. • Other milestones that need to be met in order to ensure that the project can commence caving operations (undercut) include: approval of the project investment uplift to $6.75 billion, approval of the funding plan and extension of the current power supply arrangements until an agreed long term stable and reliable power solution can be fully implemented. Rio Tinto | Fourth quarter operations report 4

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, Canada, the tunnel boring machine is being dismantled and removed following breakthrough in October. Although COVID-19 continues to affect the workforce, project completion remains on schedule for the second half of 2022. • At the Resolution Copper project in Arizona, we continue to work with the US Forest Service to secure approval of the Final Environmental Impact Statement (EIS). In parallel, mine studies and engagement with the Native American tribes and local communities continue to progress. • At the Winu project in Western Australia, there has been progress towards securing consent from the Traditional Owners to the Project Agreement in advance of submitting the necessary environmental and regulatory approvals. Drilling, fieldwork and study activities continue to progress to schedule. • At the Simandou iron ore project in Guinea, we continue to engage with key stakeholders in-country including the Government of Guinea. We remain committed to an inclusive partnership, seeking mutual and sustainable benefits by developing our project in line with international social and environmental standards. A new drilling programme has commenced, and expressions of interest are being sourced for construction and early development works expected to be carried out in 2022. • At the Jadar lithium-borate project in Serbia, as a result of delays in the approval of the Exploitation Field Licence (EFL), which is a prerequisite to publish the Environmental Impact Assessment (EIA) and commence the consultation process, we are revising development timelines. Based on current estimates and subject to receiving all relevant approvals, permits and licences, first saleable production is expected to be no earlier than 2027 (previously 2026). The Feasibility Study and the EIA Studies are progressing. We fully understand the concerns amongst some Serbian stakeholders about environmental impacts and we will continue to engage to demonstrate the project has developed mitigation solutions in the project plan. • Energy Resources of Australia (ERA) has previously indicated to the market that it has identified cost and schedule overruns in executing the mine closure plan that is expected to be significant relative to the findings of the Ranger Project Area closure feasibility study. 1Project baseline reporting has been updated following endorsement of the definitive estimate by Rio Tinto Board and Turquoise Hill Resources (pending Oyu Tolgoi board approval). The definitive estimate assumed COVID-19 restrictions in 2021 that were no more stringent than those experienced in September 2020 and noted that should COVID-19 constraints continue beyond 2021 or should the COVID-19 situation escalate further in 2021 leading to tougher restrictions, additional costs and schedule impacts would arise. Since the definitive estimate, at the end of 2020, Mongolia implemented additional restrictions in response to community transmission cases, and in March 2021 the first cases of COVID-19 were identified at Oyu Tolgoi resulting in temporary site shutdown, quarantine measures and further travel and movement restrictions. The impact of these additional restrictions, which have continued throughout this period and are beyond those experienced in September 2020, is ongoing. To date, the impact on projects costs of the additional restrictions experienced to the end of December 2021 is estimated to be $175 million. Additional costs and schedule impacts continue to be incurred and the final impact is still to be determined. Rio Tinto | Fourth quarter operations report 5

Sustainability highlights We continue to advance our sustainability agenda. We are now a member of The Dow Jones Sustainability™ World Index, which comprises global sustainability leaders as identified by S&P Global, representing the top 10% of the largest 2,500 companies in the S&P Global Broad Market Index based on ESG dimensions. On 9 November, we announced a partnership with RESOLVE, a Washington-based non profit organisation, to launch Regeneration, a start-up that will use the re-mining and processing of waste from legacy mine sites to support rehabilitation activities and restore natural environments. We will make an equity investment of $2 million and analyse our portfolio to identify potential opportunities for the first Regeneration project. On 23 October, we announced a partnership with BHP and Fortescue Metals Group to fund innovative, industry-first learning programmes as part of a continued commitment towards mining sector workplaces that are free from sexual harassment, bullying and racism. The partnership will fund and contribute to the design, development and implementation of new social awareness education packages for deployment through a range of education providers such as Technical and further education (TAFE), Registered Training Organisations, universities and high schools. On 19 December, we called for Expressions of Interest from Western Australian manufacturers to build 100 rail cars for our Pilbara operations. We will initially purchase 50 rail cars from the successful supplier, followed by an ongoing commitment of 10 rail cars a year for the next five years. This will help grow the local rail car manufacturing industry and support local jobs. Communities & Social Performance (CSP) At the end of 2021 the relationship between Puutu Kunti Kurrama and Pinikura (PKKP) leadership and Rio Tinto Iron Ore is constructive and considered. The ongoing rehabilitation works at Juukan Gorge are on schedule and have the active involvement of the appointed Puutu Kunti Kurrama (PKK) committee members. An agreement on a co-management of country approach and an appropriate remedy for the destruction of Juukan Gorge is substantially progressed. Together we are charting new territory, and this takes time, but we are moving forward on a model which is respectful and looks to provide certainty of protection for cultural heritage and mining. On 17 October, we welcomed the Joint Standing Committee on Northern Australia’s final report into the destruction of the rock shelters at Juukan Gorge. We continue to work closely with Traditional Owners to build trusted relationships and better understand and protect their cultural heritage. On 17 October, we announced a new three-year partnership with Telethon aimed at improving the health and well-being of children in Western Australia. The partnership, which follows $4 million contribution in 2020, will provide $4 million contribution each year to 2023, to support research into mental health and juvenile diabetes. At Resolution Copper in Arizona, we partnered with Stantec and White Mountain Apache community members to provide 64 hydro panels on the Fort Apache Reservation, and we are planning installation programs in other Native American communities. The panels will provide a new source of clean drinking water through an innovative, renewable technology that uses solar energy. Key highlights in Australia from the quarter are outlined below, with further information available on our website. Agreement modernisation Discussions with Pilbara Traditional Owners to modernise existing agreements continued in the fourth quarter. Heads of Agreements (HoA), or similar, are being drafted with two Traditional Owner Groups. The HoA include principles and approaches to co-management of country over the life of mine cycle and partnership arrangements to broaden benefits arising from mining. Engagement protocols to guide the modernisation discussions have been executed or endorsed with five Traditional Owner Groups. Rio Tinto | Fourth quarter operations report 6

Cultural heritage management Pilbara Iron Ore continues to apply the Integrated Heritage Management Process (IHMP). Known sites of cultural significance continue to be re-assessed and mine plans adjusted or measures taken to avoid disturbance. This includes increased buffer zones and blast management plans to reduce vibration risk. To date, we have reviewed 2,205 heritage sites across different planning horizons. Lessons learned and best practice are shared and replicated, as appropriate, across Rio Tinto. Australian Advisory Group (AAG) Work to develop the AAG is progressing with the terms of reference finalised. The AAG is on track to commence in the first quarter of 2022 and will be comprised of a minimum of 60% Aboriginal or Torres Strait Islander membership, with an Indigenous Australian Chairperson. Aboriginal Heritage Act 1972 (WA) We support the strengthening of Aboriginal heritage protection in Western Australia. We continue to collaborate with Traditional Owners, incorporating heritage and social surroundings information into mine designs, new developments and our IHMP systems. Rio Tinto | Fourth quarter operations report 7

Climate change and our value chain We progressed initiatives in the fourth quarter in line with our pathway to decarbonise our business and actively develop technologies that will enable our customers and our customers’ customers to decarbonise. • On 26 October, we announced a partnership with Carbfix to implement a technology for capturing carbon and permanently storing it underground at our ISAL aluminium smelter in Iceland. Under a Memorandum of Understanding (MoU), Carbfix will use Rio Tinto’s land surrounding the ISAL smelter for onshore CO2 injection in the world’s first carbon mineral storage hub, the Coda Terminal. Liquified CO2 will be imported by ship from industrial sites across North Europe for storage. The partnership follows an investment earlier in October in Carbon Capture Inc., a climate tech start-up that focuses on developing modular Direct Air Capture units powered by renewable energy and with the potential to remove significant amounts of CO2 from the atmosphere for permanent underground storage. • On 27 October, we announced a partnership with the U.S. Geological Survey (USGS), the science agency for the US Department of the Interior, to provide a clearer picture of the potential for critical mineral resources beneath the Continental Divide near Montana’s Boulder Batholith. The USGS will fly airborne geophysical surveys in areas of interest with support from Rio Tinto during 2022 as part of its Earth Mapping Resources Initiative. • On 28 October, we announced the signing of a MoU with BlueScope to research and design low- emissions processes for the steel value chain, including iron ore processing, iron and steelmaking and related technologies. The companies will work together to explore low-carbon steelmaking pathways using Pilbara iron ores, including the use of clean hydrogen to replace coking coal at BlueScope’s Port Kembla Steelworks. • On 4 November, we announced ELYSIS successfully produced aluminium without any direct greenhouse emissions at its Industrial Research and Development Center in Saguenay, Canada. Work is now focused on accelerating the scale-up of the ELYSIS technology towards the demonstration of even larger commercial-size cells in 2023. • On 16 November, we announced an investment in Inobat Auto, a European-based battery technology and manufacturing company. This investment will support the completion of InoBat’s research and development centre and pilot battery line in Voderady, Slovakia. The investment follows a MoU signed in May, outlining an intention to work together to progress the establishment of a “cradle-to-cradle” electric vehicle battery value chain in Serbia. • On 10 December, we announced the launch of the construction of the the solar and wind power plant at QIT Madagascar Minerals (QMM) ilmenite mine operations in Fort Dauphin, in southern Madagascar. The renewable energy project plays a key role in implementing QMM's 'sustainable mine' concept and enabling Rio Tinto operations in Madagascar to reach carbon neutrality by 2023. • On 11 January, we announced the purchase of four battery-electric trains for use in the Pilbara, Western Australia. Production is due to commence in 2023 ahead of initial trials in the Pilbara in early 2024. The locomotives will be recharged at purpose-built charging stations at the port or mine. They will also be capable of generating additional energy while in transit through a regenerative braking system which takes energy from the train and uses it to recharge the onboard batteries. Rio Tinto | Fourth quarter operations report 8

Our markets Market dynamics were broadly positive throughout 2021 for most commodities, lifting a number of prices to cyclical highs. Fiscal and monetary support and successful vaccine campaigns were key contributors to strong demand growth that ultimately stretched global supply chains to their limits and created challenging conditions for many of the world’s producers. We are encouraged by growth prospects in the coming year but remain vigilant in relation to potential disruption from new COVID-19 variants and geopolitical tensions. • China is transitioning from tightening to easing policies following a slowdown in the last quarter of 2021, with mild pro-growth measures in place to support property, infrastructure and consumption. We expect China to continue to finetune its policies to balance multiple priorities. • In the United States, activity momentum eased toward year end amid concerns over the latest COVID-19 variant and persistent supply chain constraints. Peak recovery has likely passed implying GDP growth will slow, but solid fundamentals remain in place. Household debt has fallen to the lowest since 2000, supply shortages are expected to ease and inventory restocking should support growth. • Economic activity in the eurozone weakened significantly in late 2021, and the current level of restrictions suggest a slower than expected start to 2022, especially for the service-based economies. • China’s crude steel production and iron ore imports were stable year on year, with steel production exceeding 1 billion tonnes for a second time, despite numerous steel mill operating restrictions and a slowing property sector. Steel consumption and production rates in China decelerated significantly during the fourth quarter of 2021 however, iron ore seaborne supply improved, resulting in a ~30% decline in iron ore prices in the fourth quarter versus the prior quarter. Meanwhile, the steel and iron ore demand recovery in developed and other emerging economies maintained its momentum and global crude steel production grew by an estimated 6% year on year – by one of its largest absolute annual increments in history – to a record total of almost 2 billion tonnes in 2021. • Aluminium prices experienced volatility during the quarter but recovered to just over $2,800/t at the end of 2021, driven by extensive power-related smelting curtailments in Europe. Physical markets remained tight amid firm demand and lower inventory levels, resulting in regional market premia recovering by the end of the year in both the United States and Europe. • Copper prices ended the year at 440c/lb, down 45c/lb from record levels reached in May 2021. Demand remained sound throughout 2021, whilst supply faced multiple headwinds including COVID-19, shipping disruptions and other factors. Exchange inventories declined over the course of 2021 and ended the year at less than 200kt. • Global electric vehicle (EV) sales more than doubled in 2021 due to wider availability of EV models, government subsidies and falling production costs (battery prices). Lithium production was unable to maintain the same pace as demand and prices ended the year up 150%. Average realised prices achieved for our major commodities Units H1 2021 H2 2021 2021 2020 Pilbara iron ore FOB, $/wmt 154.9 111.5 132.3 91.0 Pilbara iron ore FOB, $/dmt 168.4 121.2 143.8 98.9 Aluminium* Metal $/t 2,626 3,254 2,899 1,946 Copper** US c/lb 415 435 424 283 IOC pellets $/wmt 218.3 210,8 214.4 127.6 *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 positively impacted revenues in 2021 by $246 million (2020 positive impact of $182 million). Rio Tinto | Fourth quarter operations report 9

IRON ORE Rio Tinto share of production (Million tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Pilbara Blend and SP10 Lump1 20.4 -6 % +3 % 76.4 -1 % Pilbara Blend and SP10 Fines1 32.1 +3 % +4 % 119.9 -3 % Robe Valley Lump 1.2 -16 % -19 % 5.1 -8 % Robe Valley Fines 2.0 -22 % -11 % 8.4 -20 % Yandicoogina Fines (HIY) 14.4 +1 % -8 % 56.9 -3 % Total Pilbara production 70.1 -1 % 0 % 266.8 -3 % Total Pilbara production (100% basis) 84.1 -2 % +1 % 319.7 -4 % Rio Tinto share of shipments (Million tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Pilbara Blend Lump 12.8 -21 % -1 % 51.5 -18 % Pilbara Blend Fines 24.3 -31 % -16 % 109.6 -13 % Robe Valley Lump 1.1 -15 % +10 % 4.0 -14 % Robe Valley Fines 2.2 -27 % -13 % 9.4 -18 % Yandicoogina Fines (HIY) 14.1 -6 % -5 % 56.9 -1 % SP10 Lump1 4.8 +367 % 0 % 16.1 +315 % SP10 Fines1 10.7 +503 % +163 % 20.5 +244 % Total Pilbara shipments2 70.1 -5 % +1 % 267.9 -2 % Total Pilbara shipments (100% basis)2 84.1 -5 % +1 % 321.6 -3 % Total Pilbara Shipments (consolidated basis)2, 3 72.0 -5 % +1 % 275.2 -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 2021 shipments of 321.6 million tonnes (Rio Tinto share 267.9 million tonnes) were 3% lower than 2020. Shipments included 36.6 million tonnes of SP10 products. There was 8.8 million tonnes of Pilbara product retained as working capital at China portside (1.7 million tonnes in 2020). SP10 products comprised a higher share of shipments in the fourth quarter as a result of delays in growth and brownfield mine replacement tie- in projects. As those mines ramp-up through the first half of 2022, we will see SP10 gradually decrease and return to levels around 6% of shipments in the medium term. Pilbara operations produced 319.7 million tonnes (Rio Tinto share 266.8 million tonnes) in 2021, 4% lower than 2020. This was due to above average rainfall in the first half of the year, cultural heritage management and delays in growth and brownfield mine replacement tie-in projects. Ongoing COVID-19 restrictions and a tight labour market have further impacted our ability to access experienced contractors and particular skill sets. Production from the new greenfields mine at Gudai-Darri and brownfield mine replacement project at Robe Valley, was delayed due to COVID-19 impact on labour availability and an inability to conduct pre-delivery quality assurance and control at international steel manufacturers due to limitations on travel. First ore from Gudai-Darri was railed in December from the modular crushing and screening plant installed to supplement production and mitigate commissioning delays. Robe Valley production was significantly impacted by the Mesa A wet plant commissioning delays. Approximately 11% of sales in 2021 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 or on the spot market. Approximately 28% of sales in the fourth quarter were made on a free on board (FOB) basis, with the remainder sold including freight. Rio Tinto | Fourth quarter operations report 10

Achieved realised pricing in 2021 was $132.3 per wet metric tonne on an FOB basis (equivalent to $143.8 per dry metric tonne, at 8% moisture assumption). This compares to the monthly average Platts index for 62% fines converted to an FOB basis of $146.9 per dry metric tonne. In 2020, average realised pricing was $91.0 per wet metric tonne ($98.9 dry metric tonne). China Portside Trading We continue to increase our iron ore portside sales in China, with 5.1 million tonnes of sales in the fourth quarter of 2021 (1.8 million tonnes in the fourth quarter of 2020), leading to a total of 14.0 million tonnes in 2021 (5.5 million tonnes in 2020). We experienced increased inventory levels at the port due to higher volumes of SP10 and constrained availability of high grade blending stocks in the fourth quarter. Our portside operation handles product from the Pilbara and Canada as well as third party product, and provides blending and screening capabilities. Approximately 81% of portside sales in 2021 were either blended or screened in Chinese ports. Rio Tinto | Fourth quarter operations report 11

ALUMINIUM Rio Tinto share of production (‘000 tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Bauxite 13,095 -2 % -6 % 54,326 -3 % Bauxite third party shipments 8,988 -1 % -11 % 37,596 -4 % Alumina 1,911 -8 % -1 % 7,894 -2 % Aluminium 757 -7 % -2 % 3,151 -1 % Bauxite Bauxite production of 54.3 million tonnes was 3% lower than 2020 due to severe wet weather in the first quarter impacting system stability throughout the year, equipment reliability issues and overruns on planned shutdowns at our Pacific operations. We shipped 37.6 million tonnes of bauxite to third parties in 2021, 4% lower than the same period of 2020 due to the major weather events in the first quarter causing shipment delays. Alumina Alumina production of 7.9 million tonnes was 2% lower than 2020, as a result of outages during the year at the Yarwun refinery in Queensland, Australia and at Vaudreuil refinery in Quebec, Canada. Production at the Queensland refinery remained stable year on year. Aluminium Aluminium production of 3.2 million tonnes was 1% lower than 2020 due to reduced capacity at our Kitimat smelter in British Columbia following the strike which commenced in July 2021. Agreement with the labour union and employees was reached in October with a controlled restart in 2022. The reduced capacity was partly offset by a robust performance across the remaining smelting portfolio. Average realised aluminium prices including both product and market premiums for value-added products (VAP) and remelt were up by 49% to $2,899 per tonne in 2021 (2020: $1,946 per tonne). The LME price increased by 46% to $2,480 per tonne (2020: $1,704 per tonne), whilst the mid-west premium duty paid increased by 119% to $584 per tonne in 2021 (2020: $267 per tonne). Our VAP sales comprised 50% of primary metal sold in 2021 (2020: 43%). Product premiums for VAP sales improved by 8% averaging, $230 per tonne of VAP sold (2020: $213 per tonne). On 17 November, we announced an investment of $87 million to increase low-carbon aluminium production in Canada with 16 new smelting cells at our AP60 smelter, in the Saguenay-Lac-Saint-Jean region of Quebec. The investment will increase production at the smelter by around 45%, or 26,500 tonnes of primary aluminium per year, to a capacity of 86,500 metric tonnes and provide a secure future for approximately 100 employees who work at the facility. Rio Tinto | Fourth quarter operations report 12

COPPER Rio Tinto share of production (‘000 tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Mined copper Kennecott 49.7 +47 % +16 % 159.4 +14 % Escondida 69.6 -18 % +2 % 279.5 -17 % Oyu Tolgoi 13.0 -7 % -7 % 54.6 +9 % Refined copper Kennecott 25.5 -38 % -29 % 143.3 +69 % Escondida 14.5 -5 % -1 % 58.6 -17 % Kennecott Mined copper production was 14% higher than 2020, with higher grades and recovery but less than expected production due to the slope failure in May. The transition to the south wall is complete, with copper head grade exceeding 0.5% in the second half. Refined copper production was 69% higher than 2020 as a result of improved performance through most of the year relative to 2020, despite the furnace failure in September 2021. The smelter was safely restarted in late October and has been stable since. In 2020, there was also significant downtime following an earthquake and major maintenance. Escondida Mined copper production was 17% lower than 2020, mainly due to 10% lower grade in ore feed to concentrators, 4% lower throughput and 31% lower recoverable copper in ore stacked for leaching, mostly caused by continuous COVID-19 restrictions in 2021 which impacted the mine development due to lower workforce availability. Oyu Tolgoi Mined copper production from the open pit was 9% higher than 2020 with improved performance, temporary increase in grades, and increased mill feed following geotechnical issues in the first half, partly offset by lower staffing levels due to COVID-19. Safety is our first priority and strict measures are in place to protect our people. In the fourth quarter, stringent Chinese border restrictions continued due to increased cases of COVID-19 in Mongolia. We continue to work closely with the Mongolian and Chinese authorities and our customers to manage the risk of supply chain disruptions. Cross-border concentrate shipments into China have resumed with some measures in place to transport greater volumes in a safe and efficient manner, however uncertainty continues to exist with the rate of COVID-19 cases in Mongolia. The force majeure declared on shipments from 30 March remains in place. Provisional pricing At 31 December 2021, the Group had approximately 201 million pounds of copper sales that were provisionally priced at 436 cents per pound. The final price of these sales will be determined during the first half of 2022. This compares with 260 million pounds of open shipments at 31 December 2020, provisionally priced at 336 cents per pound. Provisional pricing adjustments positively impacted revenues in 2021 by $246 million (2020 positive impact of $182 million). Rio Tinto | Fourth quarter operations report 13

MINERALS Rio Tinto share of production (million tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Iron ore pellets and concentrate IOC 2.5 -9 % +15 % 9.7 -6 % Rio Tinto share of production (’000 tonnes) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Minerals Borates - B2O3 content 117 +18 % -5 % 488 +2 % Titanium dioxide slag 228 -16 % +9 % 1,014 -9 % Rio Tinto share of production (‘000 carats) Q4 2021 vs Q4 2020 vs Q3 2021 Full Year 2021 vs Full Year 2020 Diavik 1,155 +27 % +38 % 3,847 +3 % Iron Ore Company of Canada (IOC) Iron ore production was 6% lower than 2020 due to prolonged labour and equipment availability issues impacting product feed and various other operational challenges throughout the year. Borates Borates production in 2021 was in line with 2020 and benefited from improved refinery operating rates following the successful implementation of productivity initiatives supporting system stability. We expect logistical challenges to continue with elevated congestion at the Port of Los Angeles and shipping rate escalation. Labour availability is also posing a threat to supply chain stability. Iron and Titanium Titanium dioxide production was 9% lower than 2020. The lower production was as a result of community disruptions and subsequent curtailment of operations at Richards Bay Minerals (RBM) in South Africa coupled with unplanned maintenance and equipment reliability issues at Rio Tinto Fer et Titane (RTFT), Canada. On 24 August, RBM resumed operations following stabilisation of the security situation, supported by the national and provincial government, as well as substantive engagement with host communities and their traditional authorities. Diamonds On 18 November, we announced we had become the sole owner of Diavik Diamond Mine in the Northwest Territories of Canada, continuing its leading role in the Canadian diamond industry. At Diavik, carats recovered in 2021 were 3% higher than 2020, due to an increased share of production from November, which offset plant performance issues and lower ore grade in the fourth quarter. On 28 October, we announced that the 2021 Argyle Pink Diamonds™ Tender collection of 70 rare pink and red diamonds from our Argyle mine in Australia delivered record breaking results in its 38-year history.The 2021 collection is a historical collection comprising the pinnacle of the Argyle production, mined in its final year of operations, before closing in November 2020. Rio Tinto | Fourth quarter operations report 14

EXPLORATION AND EVALUATION Pre-tax and pre-divestment expenditure on exploration and evaluation charged to the income statement in 2021 was $726 million, compared with $625 million in 2020. Approximately 40% of this expenditure was incurred by Copper, 35% by central exploration, 16% by Minerals and 9% by Iron Ore. There were no significant divestments of central exploration properties in 2021. Exploration highlights Rio Tinto has a strong portfolio of projects with activity in 18 countries across seven commodities in early exploration and studies stages. All projects have followed government COVID-19 requirements and guidelines while focusing on protecting well-being and health of local communities. The bulk of the exploration expenditure in the fourth quarter focused on copper in Australia, Canada, Kazakhstan, United States and Zambia, nickel projects in Canada, and diamonds projects in Canada. A mineral investment contract was signed with the Republic of Angola and Endiama to explore for diamonds. Mine-lease exploration continued at Rio Tinto managed businesses including Pilbara Iron in Australia and Diavik in Canada. Activities on the ground at the Falcon diamonds project in Saskatchewan, Canada are limited to care and maintenance while Rio Tinto continues to carry out studies and review information acquired in previous programs. 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 borates: Jadar, Serbia Nickel: Tamarack, US (3rd party operated) Nickel Greenfield: Canada, Finland Copper Copper/molybdenum: Resolution, US Copper/Gold: Winu, Australia Copper: La Granja, Peru, Pribrezhniy, Kazakhstan Calibre-Magnum, Australia Copper Greenfield: Australia, Chile, China, Kazakhstan, Nicaragua, Peru, Serbia, US, Zambia, Brazil, Canada, Colombia, Finland, Namibia 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: South Africa *Limited activity during the quarter **Became sole owner and operator in the quarter Rio Tinto | Fourth quarter operations report 15

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 | Fourth quarter operations report 16

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 Media Relations, Americas Matthew Klar T +1 514 608 4429 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 Natalie Worley M +61 409 210 462 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 | Fourth quarter operations report 17

Rio Tinto production summary Rio Tinto share of production Quarter Full Year % change 2020 Q4 2021 Q3 2021 Q4 2020 2021 Q4 21 vs Q4 20 Q4 21 vs Q3 21 2021 vs 2020 Principal commodities Alumina ('000 t) 2,085 1,937 1,911 8,039 7,894 -8 % -1 % -2 % Aluminium ('000 t) 815 774 757 3,180 3,151 -7 % -2 % -1 % Bauxite ('000 t) 13,299 13,967 13,095 56,131 54,326 -2 % -6 % -3 % Borates ('000 t) 100 123 117 480 488 +18 % -5 % +2 % Copper - mined ('000 t) 132.5 125.2 132.3 527.9 493.5 0 % +6 % -7 % Copper - refined ('000 t) 56.1 50.5 40.0 155.0 201.9 -29 % -21 % +30 % Diamonds ('000 cts) 910 834 1,155 3,731 3,847 +27 % +38 % +3 % Iron Ore ('000 t) 73,749 72,074 72,561 285,932 276,557 -2 % +1 % -3 % Titanium dioxide slag ('000 t) 272 209 228 1,120 1,014 -16 % +9 % -9 % Other Metals & Minerals Gold - mined ('000 oz) 89.1 94.5 73.9 283.0 344.9 -17 % -22 % +22 % Gold - refined ('000 oz) 38.9 44.5 31.5 117.5 176.4 -19 % -29 % +50 % Molybdenum ('000 t) 6.4 0.4 1.1 20.4 7.6 -83 % +144 % -63 % Uranium ('000 lbs) 742 0 0 2,870 65 -100 % 0 % -98 % Salt ('000 t) 1,113 1,508 1,471 4,861 5,848 +32 % -2 % +20 % Silver - mined ('000 oz) 1,120 1,110 1,108 4,357 4,148 -1 % 0 % -5 % Silver - refined ('000 oz) 449 733 516 1,363 2,671 +15 % -30 % +96 % 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 | Fourth quarter operations report 18

Rio Tinto share of production Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 ALUMINA Production ('000 tonnes) Jonquière (Vaudreuil) 100 % 364 352 349 325 338 1,424 1,364 Jonquière (Vaudreuil) specialty Alumina plant 100 % 24 22 28 29 28 94 107 Queensland Alumina 80 % 774 743 756 738 727 2,961 2,964 São Luis (Alumar) 10 % 99 95 97 75 99 385 366 Yarwun 100 % 823 822 782 770 719 3,175 3,093 Rio Tinto total alumina production 2,085 2,034 2,012 1,937 1,911 8,039 7,894 ALUMINIUM Production ('000 tonnes) Australia - Bell Bay 100 % 48 46 47 48 48 192 189 Australia - Boyne Island 59 % 77 74 75 75 75 303 298 Australia - Tomago 52 % 77 75 75 77 78 305 305 Canada - six wholly owned 100 % 387 385 391 343 325 1,506 1,444 Canada - Alouette (Sept-Îles) 40 % 63 62 63 64 63 249 251 Canada - Bécancour 25 % 29 28 29 29 30 98 116 Iceland - ISAL (Reykjavik) 100 % 48 49 51 52 52 183 203 New Zealand - Tiwai Point 79 % 67 65 65 67 67 265 264 Oman - Sohar 20 % 20 20 20 20 20 79 79 Rio Tinto total aluminium production 815 803 816 774 757 3,180 3,151 BAUXITE Production ('000 tonnes) (a) Gove 100 % 3,090 2,879 3,030 3,067 2,787 12,299 11,763 Porto Trombetas 12 % 392 254 364 332 416 1,395 1,366 Sangaredi (b) 1,887 1,887 1,755 1,763 1,704 7,428 7,109 Weipa 100 % 7,929 8,545 8,550 8,805 8,188 35,009 34,088 Rio Tinto total bauxite production 13,299 13,566 13,699 13,967 13,095 56,131 54,326 (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 | Fourth quarter operations report 19

Rio Tinto share of production Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 BORATES Production ('000 tonnes B2O3 content) Rio Tinto Borates - borates 100 % 100 122 126 123 117 480 488 COPPER Mine production ('000 tonnes) (a) Bingham Canyon 100 % 33.8 33.2 33.7 42.8 49.7 140.0 159.4 Escondida 30 % 84.8 72.1 69.5 68.4 69.6 337.8 279.5 Oyu Tolgoi (b) 34 % 14.0 15.2 12.3 14.1 13.0 50.2 54.6 Rio Tinto total mine production 132.5 120.5 115.5 125.2 132.3 527.9 493.5 Refined production ('000 tonnes) Escondida 30 % 15.2 14.0 15.3 14.7 14.5 70.2 58.6 Rio Tinto Kennecott (c) 100 % 40.9 45.2 36.9 35.7 25.5 84.8 143.3 Rio Tinto total refined production 56.1 59.2 52.3 50.5 40.0 155.0 201.9 (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 38.1 thousand tonnes of cathode produced from purchased concentrate in year-to-date 2021. 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 % 910 1,007 851 834 1,155 3,731 3,847 (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 % 45.3 36.2 30.5 38.1 34.7 171.2 139.5 Escondida 30 % 14.3 11.4 11.7 12.6 12.9 50.9 48.5 Oyu Tolgoi (b) 34 % 29.4 48.8 37.9 43.8 26.3 61.0 156.9 Rio Tinto total mine production 89.1 96.4 80.1 94.5 73.9 283.0 344.9 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 38.9 56.8 43.6 44.5 31.5 117.5 176.4 (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 | Fourth quarter operations report 20

Rio Tinto share of production Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 IRON ORE Production ('000 tonnes) (a) Hamersley mines (b) 53,316 47,063 47,621 53,041 51,974 210,682 199,699 Hamersley - Channar (c) 100 % 1,935 2,250 2,712 2,593 3,075 6,139 10,630 Hope Downs 50 % 6,571 5,616 5,960 6,500 6,567 24,522 24,642 Iron Ore Company of Canada 59 % 2,740 2,345 2,721 2,163 2,498 10,402 9,727 Robe River - Pannawonica (Mesas J and A) 53 % 3,988 3,506 3,090 3,721 3,196 16,056 13,514 Robe River - West Angelas 53 % 5,199 4,900 4,137 4,056 5,252 18,131 18,345 Rio Tinto iron ore production ('000 tonnes) 73,749 65,681 66,241 72,074 72,561 285,932 276,557 Breakdown of Production: Pilbara Blend and SP10 Lump (d) 21,666 18,050 18,265 19,742 20,374 77,393 76,431 Pilbara Blend and SP10 Fines (d) 31,122 28,245 28,796 30,825 32,081 123,292 119,947 Robe Valley Lump 1,364 1,307 1,219 1,423 1,152 5,561 5,102 Robe Valley Fines 2,624 2,199 1,871 2,297 2,044 10,496 8,412 Yandicoogina Fines (HIY) 14,233 13,534 13,369 15,623 14,412 58,789 56,938 Pilbara iron ore production ('000 tonnes) 71,009 63,336 63,520 69,910 70,063 275,530 266,830 IOC Concentrate 1,297 871 1,154 829 1,009 4,781 3,863 IOC Pellets 1,443 1,474 1,567 1,335 1,489 5,622 5,864 IOC iron ore production ('000 tonnes) 2,740 2,345 2,721 2,163 2,498 10,402 9,727 Breakdown of Shipments: Pilbara Blend Lump 16,280 12,842 12,830 13,018 12,832 62,878 51,522 Pilbara Blend Fines 35,140 28,565 27,795 28,901 24,308 126,578 109,569 Robe Valley Lump 1,246 1,025 934 962 1,061 4,608 3,981 Robe Valley Fines 3,062 2,402 2,190 2,567 2,237 11,473 9,395 Yandicoogina Fines (HIY) 15,055 14,222 13,640 14,906 14,121 57,749 56,889 SP10 Lump (d) 1,037 2,664 3,748 4,826 4,841 3,879 16,078 SP10 Fines (d) 1,771 2,923 2,817 4,063 10,684 5,951 20,487 Pilbara iron ore shipments ('000 tonnes) (e) 73,590 64,642 63,953 69,242 70,084 273,115 267,921 Pilbara iron ore shipments - consolidated basis ('000 tonnes) (e) (g) 75,630 66,431 65,627 71,131 71,972 280,831 275,161 IOC Concentrate 1,157 1,019 1,048 1,054 989 4,928 4,110 IOC Pellets 1,539 1,477 1,303 1,374 1,711 6,006 5,865 IOC Iron ore shipments ('000 tonnes) (e) 2,696 2,496 2,352 2,428 2,700 10,934 9,976 Rio Tinto iron ore shipments ('000 tonnes) (e) 76,286 67,137 66,305 71,671 72,784 284,050 277,897 Rio Tinto iron ore sales ('000 tonnes) (f) 76,125 65,551 67,145 70,967 69,489 283,778 273,153 (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 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. (c) 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. Production is reported at 100% from this date onward. Historic data is unchanged. (d) SP10 includes other lower grade products. (e) Shipments includes material shipped to our portside trading facility in China which may not be sold onwards in the same period. (f) Represents the difference between amounts shipped to portside trading and onward sales from portside trading, and third party volumes sold. (g) 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 | Fourth quarter operations report 21

Rio Tinto share of production Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 MOLYBDENUM Mine production ('000 tonnes) (a) Bingham Canyon 100 % 6.4 5.0 1.1 0.4 1.1 20.4 7.6 (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 % 1,113 1,411 1,458 1,508 1,471 4,861 5,848 SILVER Mine production ('000 ounces) (a) Bingham Canyon 100 % 555 524 476 639 589 2,205 2,228 Escondida 30 % 488 395 370 387 439 1,859 1,591 Oyu Tolgoi (b) 34 % 77 85 79 84 80 293 328 Rio Tinto total mine production 1,120 1,005 925 1,110 1,108 4,357 4,148 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 449 812 609 733 516 1,363 2,671 (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 % 272 279 298 209 228 1,120 1,014 (a) Quantities comprise 100% of Rio Tinto Fer et Titane and Rio Tinto's 74% interest in Richards Bay Minerals (RBM). URANIUM Production ('000 lbs U3O8) (a) Energy Resources of Australia 86 % 742 65 — — — 2,870 65 (a) ERA production data are drummed U3O8. ERA ceased processing operations on 8 January 2021, as required by the Ranger Authority. Rio Tinto's Argyle operations were closed in 2020. 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 31 December 2021. Rio Tinto | Fourth quarter operations report 22

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 ALUMINA Smelter Grade Alumina - Aluminium Group Alumina production ('000 tonnes) Australia Queensland Alumina Refinery - Queensland 80 % 968 929 945 922 909 3,701 3,705 Yarwun refinery - Queensland 100 % 823 822 782 770 719 3,175 3,093 Brazil São Luis (Alumar) refinery 10 % 990 953 968 748 993 3,848 3,662 Canada Jonquière (Vaudreuil) refinery - Quebec (a) 100 % 364 352 349 325 338 1,424 1,364 (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 % 24 22 28 29 28 94 107 Rio Tinto percentage interest shown above is at 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 23

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 ALUMINIUM Primary Aluminium Primary aluminium production ('000 tonnes) Australia Bell Bay smelter - Tasmania 100 % 48 46 47 48 48 192 189 Boyne Island smelter - Queensland 59 % 129 124 127 125 126 510 502 Tomago smelter - New South Wales 52 % 149 145 146 150 150 592 592 Canada Alma smelter - Quebec 100 % 119 117 117 119 119 473 471 Alouette (Sept-Îles) smelter - Quebec 40 % 158 155 157 159 157 623 629 Arvida smelter - Quebec 100 % 41 40 42 42 43 169 168 Arvida AP60 smelter - Quebec 100 % 15 15 15 15 15 60 60 Bécancour smelter - Quebec 25 % 115 112 117 115 119 393 463 Grande-Baie smelter - Quebec 100 % 57 56 57 58 58 225 230 Kitimat smelter - British Columbia 100 % 91 95 97 46 25 329 263 Laterrière smelter - Quebec 100 % 63 62 63 63 64 250 252 Iceland ISAL (Reykjavik) smelter 100 % 48 49 51 52 52 183 203 New Zealand Tiwai Point smelter 79 % 84 82 82 84 85 333 333 Oman Sohar smelter 20 % 100 98 99 100 100 397 395 Rio Tinto percentage interest shown above is at 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 24

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 BAUXITE Bauxite production ('000 tonnes) Australia Gove mine - Northern Territory 100 % 3,090 2,879 3,030 3,067 2,787 12,299 11,763 Weipa mine - Queensland 100 % 7,929 8,545 8,550 8,805 8,188 35,009 34,088 Brazil Porto Trombetas (MRN) mine 12 % 3,268 2,117 3,033 2,764 3,469 11,629 11,383 Guinea Sangaredi mine (a) 23 % 4,193 4,194 3,899 3,919 3,786 16,506 15,797 Rio Tinto share of bauxite shipments Share of total bauxite shipments ('000 tonnes) 12,993 13,444 13,602 14,201 13,031 55,345 54,278 Share of third party bauxite shipments ('000 tonnes) 9,104 9,024 9,493 10,091 8,988 39,357 37,596 (a) Rio Tinto has a 22.95% shareholding in the Sangaredi mine but benefits from 45.0% of production. Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 BORATES Rio Tinto Borates - borates 100 % US Borates ('000 tonnes) (a) 100 122 126 123 117 480 488 (a) Production is expressed as B2O3 content. Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 COPPER & GOLD Escondida 30 % Chile Sulphide ore to concentrator ('000 tonnes) 36,303 32,654 31,903 33,528 35,787 139,230 133,872 Average copper grade (%) 0.83 0.78 0.78 0.73 0.71 0.83 0.75 Mill production (metals in concentrates): Contained copper ('000 tonnes) 246.1 207.8 202.8 201.2 203.6 956.8 815.5 Contained gold ('000 ounces) 47.8 38.0 38.9 42.0 42.9 169.5 161.7 Contained silver ('000 ounces) 1,627 1,318 1,234 1,291 1,462 6,196 5,305 Recoverable copper in ore stacked for leaching ('000 tonnes) (a) 36.5 32.5 28.7 26.7 28.4 169.1 116.3 Refined production from leach plants: Copper cathode production ('000 tonnes) 50.8 46.6 51.1 49.0 48.4 233.9 195.3 (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 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 25

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 COPPER & GOLD (continued) Rio Tinto Kennecott Bingham Canyon mine 100 % Utah, US Ore treated ('000 tonnes) 11,418 10,054 7,918 9,995 9,809 44,676 37,776 Average ore grade: Copper (%) 0.34 0.38 0.48 0.47 0.55 0.36 0.47 Gold (g/t) 0.22 0.21 0.21 0.22 0.21 0.22 0.21 Silver (g/t) 2.07 2.30 2.64 2.80 2.55 2.08 2.57 Molybdenum (%) 0.068 0.058 0.021 0.017 0.020 0.059 0.029 Copper concentrates produced ('000 tonnes) 138 140 141 180 187 561 648 Average concentrate grade (% Cu) 24.2 23.7 23.9 23.7 26.3 24.8 24.5 Production of metals in copper concentrates: Copper ('000 tonnes) (a) 33.8 33.2 33.7 42.8 49.7 140.0 159.4 Gold ('000 ounces) 45.3 36.2 30.5 38.1 34.7 171.2 139.5 Silver ('000 ounces) 555 524 476 639 589 2,205 2,228 Molybdenum concentrates produced ('000 tonnes): 12.2 9.4 2.2 1.0 2.2 40.7 14.8 Molybdenum in concentrates ('000 tonnes) 6.4 5.0 1.1 0.4 1.1 20.4 7.6 Kennecott smelter & refinery 100 % Copper concentrates smelted ('000 tonnes) 234 240 103 165 157 448 665 Copper anodes produced ('000 tonnes) (b) 44.8 50.5 23.5 35.7 32.9 86.9 142.5 Production of refined metal: Copper ('000 tonnes) (c) 40.9 45.2 36.9 35.7 25.5 84.8 143.3 Gold ('000 ounces) (d) 38.9 56.8 43.6 44.5 31.5 117.5 176.4 Silver ('000 ounces) (d) 449 812 609 733 516 1,363 2,671 (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 38.1 thousand tonnes of cathode produced from purchased concentrate in year-to-date 2021. 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 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 26

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 COPPER & GOLD (continued) Turquoise Hill Resources Oyu Tolgoi mine (a) 34 % Mongolia Ore Treated ('000 tonnes) 9,594 9,813 9,401 9,336 10,573 40,200 39,124 Average mill head grades: Copper (%) 0.50 0.56 0.47 0.53 0.46 0.46 0.50 Gold (g/t) 0.41 0.68 0.50 0.63 0.38 0.24 0.54 Silver (g/t) 1.16 1.29 1.19 1.29 1.27 1.18 1.26 Copper concentrates produced ('000 tonnes) 190.2 201.9 173.2 191.9 182.7 693.1 749.6 Average concentrate grade (% Cu) 21.9 22.5 21.2 21.9 21.3 21.6 21.7 Production of metals in concentrates: Copper in concentrates ('000 tonnes) 41.6 45.4 36.7 41.9 38.9 149.6 163.0 Gold in concentrates ('000 ounces) 87.8 145.7 113.1 130.8 78.6 181.9 468.1 Silver in concentrates ('000 ounces) 231 255 235 249 239 876 977 Sales of metals in concentrates: Copper in concentrates ('000 tonnes) 37.9 39.0 19.6 46.4 34.4 137.8 139.4 Gold in concentrates ('000 ounces) 65.8 110.9 72.6 149.1 102.2 150.0 434.7 Silver in concentrates ('000 ounces) 194 207 106 278 192 760 783 (a) Rio Tinto owns a 33.52% indirect interest in Oyu Tolgoi through its 50.79% interest in Turquoise Hill Resources. Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 DIAMONDS Argyle Diamonds (a) 100 % Western Australia AK1 ore processed ('000 tonnes) 1,078 — — — — 5,773 — AK1 diamonds produced ('000 carats) 1,893 — — — — 10,945 — Diavik Diamonds (b) 100 % Northwest Territories, Canada Ore processed ('000 tonnes) 643 632 669 643 596 2,518 2,540 Diamonds recovered ('000 carats) 1,517 1,678 1,418 1,390 1,356 6,218 5,843 (a) Rio Tinto's Argyle operations were closed in 2020. (b) 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 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 27

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 IRON ORE Rio Tinto Iron Ore Western Australia Pilbara Operations Saleable iron ore production ('000 tonnes) Hamersley mines (a) 53,316 47,063 47,621 53,041 51,974 210,682 199,699 Hamersley - Channar (b) 100 % 2,169 2,250 2,712 2,593 3,075 9,175 10,630 Hope Downs 50 % 13,142 11,232 11,920 13,000 13,133 49,045 49,284 Robe River - Pannawonica (Mesas J and A) 53 % 7,525 6,616 5,830 7,021 6,031 30,295 25,497 Robe River - West Angelas 53 % 9,809 9,246 7,806 7,652 9,909 34,209 34,613 Total production ('000 tonnes) 85,961 76,406 75,889 83,306 84,122 333,405 319,724 Breakdown of total production: Pilbara Blend and SP10 Lump (c) 25,888 21,901 21,946 23,617 24,998 94,375 92,463 Pilbara Blend and SP10 Fines (c) 38,316 34,356 34,743 37,046 38,681 149,947 144,826 Robe Valley Lump 2,574 2,467 2,300 2,686 2,173 10,492 9,626 Robe Valley Fines 4,951 4,149 3,530 4,335 3,857 19,803 15,871 Yandicoogina Fines (HIY) 14,233 13,534 13,369 15,623 14,412 58,789 56,938 Breakdown of total shipments: Pilbara Blend Lump 20,155 15,740 15,631 16,710 16,616 77,117 64,697 Pilbara Blend Fines 42,727 35,777 34,607 36,199 31,620 155,533 138,203 Robe Valley Lump 2,351 1,934 1,762 1,814 2,001 8,694 7,512 Robe Valley Fines 5,778 4,532 4,131 4,843 4,221 21,648 17,727 Yandicoogina Fines (HIY) 15,055 14,222 13,640 14,906 14,121 57,749 56,889 SP10 Lump (c) 1,037 2,664 3,748 4,826 4,841 3,879 16,078 SP10 Fines (c) 1,771 2,923 2,817 4,063 10,684 5,951 20,487 Total shipments ('000 tonnes) (d) 88,873 77,791 76,336 83,360 84,104 330,570 321,592 Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 Iron Ore Company of Canada 59 % Newfoundland & Labrador and Quebec in Canada Saleable iron ore production: Concentrates ('000 tonnes) 2,208 1,484 1,965 1,411 1,718 8,141 6,578 Pellets ('000 tonnes) 2,457 2,510 2,669 2,273 2,535 9,574 9,986 IOC Total production ('000 tonnes) 4,666 3,993 4,634 3,684 4,254 17,715 16,564 Shipments: Concentrates ('000 tonnes) 1,970 1,735 1,785 1,795 1,684 8,392 7,000 Pellets ('000 tonnes) 2,620 2,515 2,220 2,340 2,914 10,229 9,988 IOC Total Shipments ('000 tonnes) (d) 4,591 4,250 4,005 4,136 4,598 18,621 16,989 Global Iron Ore Totals Iron Ore Production ('000 tonnes) 90,627 80,400 80,523 86,990 88,375 351,121 336,288 Iron Ore Shipments ('000 tonnes) 93,464 82,041 80,341 87,496 88,702 349,190 338,581 Iron Ore Sales ('000 tonnes) (e) 93,016 80,291 81,097 86,542 85,256 348,098 333,185 (a) Includes 100% of production from Paraburdoo, Mt Tom Price, Western Turner Syncline, Marandoo, Yandicoogina, Brockman, Nammuldi, Silvergrass 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. (b) 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. Historic data is unchanged. (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) Include Pilbara and IOC sales adjusted for portside trading movements and third party volumes sold. Rio Tinto percentage interest shown above is at 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 28

Rio Tinto operational data Rio Tinto interest Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Full Year 2020 Full Year 2021 SALT Dampier Salt 68 % Western Australia Salt production ('000 tonnes) 1,628 2,064 2,132 2,206 2,152 7,111 8,555 TITANIUM DIOXIDE SLAG Rio Tinto Iron & Titanium 100 % Canada and South Africa (Rio Tinto share) (a) Titanium dioxide slag ('000 tonnes) 272 279 298 209 228 1,120 1,014 (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. URANIUM Energy Resources of Australia Ltd Ranger mine (a) 86 % Northern Territory, Australia U3O8 Production ('000 lbs) 860 75 — — — 3,471 75 (a) ERA production data are drummed U3O8. ERA ceased processing operations on 8 January 2021, as required by the Ranger Authority. Rio Tinto percentage interest shown above is at 31 December 2021. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto | Fourth quarter operations report 29