# EDGAR Filing Document

**Accession Number:** 0000887028
**File Stem:** 0001628280-23-001086
**Filing Date:** 2023-1
**Character Count:** 85918
**Document Hash:** 6ac8e6199045bc5c923b0cc96b0d1cbc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-23-001086.hdr.sgml**: 20230117

**ACCESSION NUMBER**: 0001628280-23-001086

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 33

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230117

**DATE AS OF CHANGE**: 20230117

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RIO TINTO PLC
- **CENTRAL INDEX KEY:** 0000863064
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-10533
- **FILM NUMBER:** 23531332

**BUSINESS ADDRESS:**
- **STREET 1:** 6 ST JAMES'S SQUARE
- **CITY:** LONDON, SW1Y 4AD
- **STATE:** X0
- **ZIP:** 00000
- **BUSINESS PHONE:** 44 20 7781 1623

**MAIL ADDRESS:**
- **STREET 1:** RIO TINTO SERVICES INC.
- **STREET 2:** 80 STATE STREET
- **CITY:** ALBANY
- **STATE:** NY
- **ZIP:** 12207-2543

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RTZ CORPORATION PLC
- **DATE OF NAME CHANGE:** 19950522
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RIO TINTO LTD
- **CENTRAL INDEX KEY:** 0000887028
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** C3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34121
- **FILM NUMBER:** 23531333

**BUSINESS ADDRESS:**
- **STREET 1:** 120 COLLINS STREET
- **STREET 2:** MELBOURNE
- **CITY:** VICTORIA 3000
- **STATE:** C3
- **ZIP:** AUSTRALIA
- **BUSINESS PHONE:** 44 20 7781 1623

**MAIL ADDRESS:**
- **STREET 1:** RIO TINTO SERVICES INC.
- **STREET 2:** 80 STATE STREET
- **CITY:** ALBANY
- **STATE:** NY
- **ZIP:** 12207-2543

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CRA LTD
- **DATE OF NAME CHANGE:** 19950725

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, DC 20549**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER**

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

**THE SECURITIES EXCHANGE ACT OF 1934**

**17 January 2023**

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

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

Form 20-F ☒ Form 40-F ☐

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

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

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**EXHIBITS**

99.1Stock Exchange announcement dated 17 January 2023 entitled '<u>[Rio Tinto releases fourth quarter production results](ex1_4q22xresults.htm)</u>'

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**SIGNATURES**

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

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| | | | |
|:---|:---|:---|:---|
| **Rio Tinto plc** | **Rio Tinto plc** | **Rio Tinto Limited** | **Rio Tinto Limited** |
| (Registrant) | (Registrant) | (Registrant) | (Registrant) |
| By | /s/ Steve Allen | By | /s/ Steve Allen |
| Name | Steve Allen | Name | Steve Allen |
| Title | Company Secretary | Title | Joint Company Secretary |
| Date | 17 January 2023 | Date | 17 January 2023 |

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## Exhibit 99.1

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&nbsp;&nbsp;&nbsp;&nbsp;Rio Tinto releases fourth quarter production results 17 January 2023 Rio Tinto Chief Executive Jakob Stausholm, said: "We were fatality free for the fourth consecutive year, as we continue to put safety at the forefront of everything we do. A number of operational records were achieved in the second half across the Pilbara iron ore mine and rail system. Deployment of our Safe Production System resulted in improved performance at those sites and overall production was higher versus 2021 across all commodities, with the exception of aluminium and alumina. "The acquisition of Turquoise Hill Resources strengthens our copper portfolio and demonstrates our ability to allocate capital with discipline to grow in materials the world needs for the energy transition and delivering long- term value for our shareholders. Copper guidance has been increased accordingly. We continue to invest in future growth, progressing the Rincon lithium project in Argentina and are working with our partners to progress the Simandou project in Guinea. "We continue to work hard to transform our culture and invest in genuine partnerships. I am proud that we have reached new agreements with the Yindjibarndi and Puutu Kunti Kurrama and Pinikura peoples in Australia, and the Pekuakamiulnuatsh First Nation in Canada. "In line with our new purpose of finding better ways to provide the materials the world needs, we will continue to progress our four objectives and strategy to strengthen the business, which will lead to profitable growth and continue to deliver attractive shareholder returns." Production\* Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Pilbara iron ore shipments (100% basis) Mt 87.3 +4 % +5 % 321.6 0 % Pilbara iron ore production (100% basis) Mt 89.5 +6 % +6 % 324.1 +1 % Bauxite Mt 13.2 +1 % -4 % 54.6 +1 % Aluminium kt 783 +3 % +3 % 3,009 -4 % Mined copper kt 131 -1 % -5 % 521 +6 % Titanium dioxide slag kt 323 +42 % +4 % 1,200 +18 % IOC\*\* iron ore pellets and concentrate Mt 2.5 +1 % -9 % 10.3 +6 % \*Rio Tinto share unless otherwise stated \*\*Iron Ore Company of Canada 2022 operational highlights and other key announcements • We continue to prioritise the safety, health and wellbeing of our workforce and communities where we operate. We experienced our fourth consecutive year with no fatalities at our managed operations, and continue to work hard with our partners to achieve the same results at our non-managed assets and marine operations. • Pilbara operations produced 324.1 million tonnes (100% basis) in 2022, 1% higher than 2021. Shipments were 321.6 million tonnes (100% basis), in line with 2021. Performance improvements continued across the system and we achieved record second half performance across the mine and rail system. We expect Gudai-Darri to reach its nameplate capacity on a sustained basis during 2023. • Bauxite production of 54.6 million tonnes was 1% higher than 2021, despite equipment reliability issues at Weipa and Gove in Australia. • Aluminium production of 3.0 million tonnes was 4% lower than 2021 due to reduced output at our Kitimat smelter in British Columbia, Canada and Boyne smelter in Queensland, Australia. The rate of pot restarts at Kitimat picked up in the fourth quarter and Boyne smelter cell recovery efforts continued. Recovery at both smelters is progressing with full ramp-up expected to be completed during the course of 2023. All of our other aluminium smelters continued to demonstrate stable performance. Notice to ASX/LSE Rio Tinto \| Fourth quarter operations report 1 EXHIBIT 99.1

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• On 1 December, we commissioned the second tunnel (T2) to carry water into the Kemano Powerhouse in British Columbia, marking the end of the Kemano T2 hydropower project. The new, 16-kilometre tunnel produced its first megawatt of electricity in July 2022 after construction was completed in May 2022. Both T1 and T2 are now operating together, ensuring the long-term reliability of the power supply for our aluminium smelter in Kitimat and neighbouring communities. • Mined copper production of 521 thousand tonnes was 6% higher than 2021 due to higher grades at Kennecott and Escondida, partly offset by lower grades and recoveries at Oyu Tolgoi as a result of planned mine sequencing. Unplanned maintenance was required at Kennecott in the fourth quarter of 2022 in our anode furnaces leading to extended downtime and continued poor anode production, likely to result in weak cathode production in the first quarter of 2023. Refined copper production at Kennecott will continue to be challenged due to the smelter and refinery performance, until we undertake the largest rebuild in nine years which is planned for the second quarter of 2023 and is expected to take approximately three months. • On 16 December, we completed the acquisition of Turquoise Hill Resources Ltd for a consideration of approximately $3.1 billion1, simplifying ownership of the world-class Oyu Tolgoi mine in Mongolia, significantly strengthening Rio Tinto's copper portfolio, and demonstrating our long-term commitment to the project and Mongolia. We now hold a 66% direct interest in the Oyu Tolgoi project with the remaining 34% owned by the Government of Mongolia through Erdenes Oyu Tolgoi. Cash consideration of approximately $2.9 billion was paid in December 2022. Oyu Tolgoi production for 2022 remains on a 33.52% Rio Tinto share basis. • Titanium dioxide slag production of 1,200 thousand tonnes was 18% higher than 2021, due to community disruptions at Richards Bay Minerals (RBM) in South Africa in 2021, and continued improved performance of operations at Rio Tinto Fer et Titane (RTFT), Canada. Production constraints related to nationwide electrical power loadshedding at RBM were experienced in the fourth quarter. • Iron Ore Company of Canada (IOC) production of pellets and concentrate was 6% higher than 2021. Successful deployment of the Rio Tinto Safe Production System (SPS) at the concentrator was completed in the year, with record performance metrics achieved in the year, including monthly records for concentrate production and total material moved in the second quarter. Planning for SPS deployment at the pellet plant commenced in December. • We achieved our SPS deployment target for 2022 with 30 deployments across 16 sites. Roll-outs are ongoing to continuously improve safety, strengthen employee engagement and sustainably lift operational performance across our global portfolio. • As reported in the first half, higher rates of inflation have increased our closure liabilities with an impact to underlying earnings. This resulted in increased charges for the year of approximately $1.3 billion pre-tax within underlying earnings (first half 2022: $0.4 billion) compared with 2021, including a $1.1 billion full year increase in amortisation of discount (first half 2022: $0.3 billion), with the remainder impacting Underlying EBITDA. • As part of the agreement reached with the Australian Taxation Office (ATO) in July, we paid the ATO additional tax of A$613 million for the period from 2010 to 2021 in August 2022. • The sale of a royalty on an area including the Cortez mine operational area, a direct wholly-owned subsidiary of Royal Gold Inc., for $525 million in cash, was settled in August. This amount will be recorded in 'Sales of financial assets' in the group cash flow statement and is therefore not included in Free cash flow. • The sale of our wholly owned Roughrider uranium development completed in October for total consideration of $150 million, including $80 million in cash, will be recorded in 'Disposal of subsidiaries' in the group cash flow statement and is therefore not included in Free cash flow. Rio Tinto \| Fourth quarter operations report 2

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• On 30 November, we provided a detailed update at our Investor Seminar on execution of our strategy and evolution of our culture, including SPS and decarbonisation activities, to strengthen the business, grow in a decarbonising world and continue to deliver attractive shareholder returns. Capital expenditure to decarbonise our assets of an estimated $7.5 billion to 2030 is being prioritised and phased. This remains subject to Traditional Owner and other stakeholder engagement, regulatory approvals and technology developments. New long-term power contracts will also be required for the aluminium business to meet targets. Our incremental operating expenditure on building new teams and energy efficiency initiatives remains around $200 million per annum in addition to Research and Development investment. • On 19 December, we announced the appointment of Kaisa Hietala as a non-executive director to the Rio Tinto Board, commencing 1 March 2023. Ms Hietala, a Finnish citizen, played a central role in the commercial transformation of Neste, the world's largest and most profitable producer of renewable products, as Executive Vice President of Renewable Products. She serves on the Boards of Exxon Mobil and Smurfit Kappa Group, and is Chair of the Board at Tracegrow, a private Finnish sustainable fertilisers company. • 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. 1Based on a value of C$43.00 per share and a USD/CAD FX rate of 1.3618 as of 15 December 2022 and includes amounts we expect to pay in 2023. Rio Tinto \| Fourth quarter operations report 3

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2023 guidance Rio Tinto share, unless otherwise stated 2022 Guidance 2022 Actuals 2023 Pilbara iron ore (shipments, 100% basis) (Mt) 320 to 3351 322 320 to 335 Bauxite (Mt) 54 to 57 55 54 to 57 Alumina (Mt) 7.6 to 7.8 7.5 7.7 to 8.0 Aluminium (Mt) 3.0 to 3.1 3.0 3.1 to 3.3 Mined copper (kt) 500 to 575 521 650 to 7102 Refined copper (kt) 190 to 220 209 180 to 210 Diamonds (M carats) 4.5 to 5.0 4.7 3.0 to 3.8 Titanium dioxide slag (Mt) 1.1 to 1.4 1.2 1.1 to 1.4 IOC3 iron ore pellets and concentrate (Mt) 10.0 to 11.0 10.3 10.5 to 11.5 Boric oxide equivalent (Mt) ~0.5 0.5 ~0.5 1At the low end of range. 2Oyu Tolgoi production for 2022 remains on a 33.52% Rio Tinto share basis. Subsequent to Rio Tinto's acquisition of Turquoise Hill Resources which completed on 16 December, 2023 mined copper guidance now includes Oyu Tolgoi on a 100% consolidated basis and continues to reflect our 30% share of Escondida. 3Iron Ore Company of Canada continues to be reported at Rio Tinto share. • 2023 production guidance is unchanged since November 2022 with the exception of mined copper. On a Rio Tinto share basis, mined copper production guidance changed from 550 to 600 thousand tonnes to 600 to 655 thousand tonnes. This reflects our increased ownership in Oyu Tolgoi from 33% to 66%. Our headline production guidance of 650 to 710 thousand tonnes now includes 100% of Oyu Tolgoi, in line with the consolidation of Oyu Tolgoi in Consolidated sales revenue and Underlying EBITDA in our group financial statements. • Iron ore shipments and bauxite production guidance remain subject to weather and market conditions. Pilbara shipments guidance remains subject to progressing the ramp-up of shipments from new mines and management of cultural heritage. Operating costs • Our 2022 Pilbara iron ore unit cash costs are likely to end up slightly above the top end of our $19.5-21.0 per tonne guidance range, primarily due to inflation, diesel prices and labour costs. • Guidance for 2023 Pilbara iron ore unit cash costs is unchanged at $21.0 to $22.5 per tonne, based on A$:US$ exchange rate of 0.70. • Guidance for 2023 copper C1 unit costs is unchanged at 160 to 180 US cents/lb. • Working capital has stabilised but remains somewhat elevated with commodity price volatility, higher raw material prices and global supply chain pressures. Aluminium modelling As reported in the first half of 2022, 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 H2 22 FY 22 Bauxite 39 32 30 31 Conversion 34 33 32 32 Caustic 14 22 24 23 Energy 13 13 14 14 Total 100 100 100 100 Rio Tinto \| Fourth quarter operations report 4

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Input costs (nominal) H1 21 Index price H2 21 Index price H1 22 Index price H2 22 Index price FY 22 Annual cost sensitivity impact on underlying EBITDA Caustic soda1 ($/t) 274 535 675 595 $10m per $10/t Natural gas2 ($/mmbtu) 2.85 4.59 6.02 7.01 $4m per $0.10/GJ Brent oil ($/bbl) 64.6 76.3 105.9 93.8 $2m per $10/bbl 1North East Asia FOB \| 2Henry Hub Aluminum smelting Production cash cost (%) FY 21 H1 22 H2 22 FY 22 Alumina 41 42 39 41 Power 21 20 19 19 Conversion 21 17 17 17 Carbon 15 19 23 21 Materials 2 2 2 2 Total 100 100 100 100 Input costs (nominal) H1 21 Index price H2 21 Index price H1 22 Index price H2 22 Index price FY 22 Annual cost sensitivity impact on underlying EBITDA Alumina1 ($/t) 288 369 395 328 $64m per $10/t Petroleum coke2 ($/t) 373 491 695 719 $11m per $10/t Coal tar pitch3 ($/t) 748 818 1,103 1,476 $2m per $10/t 1LME Australia \| 2US Gulf FOB \| 3North America FOB Rio Tinto \| Fourth quarter operations report 5

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Investments, growth and development projects • Exploration and evaluation expense in 2022 was $897 million, $171 million (24%) higher than 2021, with continued ramp-up of activities in Guinea, Argentina and Australia. Our annual budget for greenfield exploration remains around $250 million, mainly focused on copper, with a growing battery minerals programme. Pilbara mine projects • We have safely completed required works and demobilised from our recently commissioned Pilbara mine replacement projects during the period. We expect Gudai-Darri to reach its nameplate capacity on a sustained basis during 2023. • At Robe Valley, the Mesa A wet plant performance verification was successfully completed during the quarter and construction resources have demobilised from site. • We have now received all primary environmental and Australian government approvals for the Western Range Iron Ore project (Greater Paraburdoo), a joint venture between Rio Tinto (54 per cent) and China Baowu Steel Group Co. Ltd (46 per cent). The joint venture remains subject to Chinese regulatory approvals. Rio Tinto commenced early works site mobilisation and major contracts for bulk earthworks and Civil, Structural, Mechanical, Piping, Electrical and Instrumentation have been awarded. Heritage surveying continued with final surveys planned for the first quarter of 2023. • In addition, we continue to progress our next tranche of Pilbara mine projects including Hope Downs 1 Sustaining (Hope Downs 2 and Bedded Hilltop) and Brockman 4 Sustaining (Brockman Syncline 1). We expect to complete the Rhodes Ridge order of magnitude study in 2023. Oyu Tolgoi underground project • At the end of the quarter, a total of 19 drawbells had been fired. Drawbell progression accelerated as a result of improvement initiatives implemented by the Oyu Tolgoi teams, bringing projected first sustainable production from Panel 0 forward to the first quarter of 2023 (previously first half of 2023). • At the end of December, shafts 3 and 4 sinking reached 378 metres and 507 metres below ground level, respectively. Operational safety sinking pauses have caused some delays against the 2022 reforecast1 to shaft sinking across the fourth quarter. Final depths required for shafts 3 and 4 are 1,148 and 1,149 metres below ground level, respectively. Construction of conveyor to surface works continued during the quarter with civil scope of works completed and other contractors mobilised to site. • Study work for Panels 1 and 2 (which are required to support the ramp-up to 95,000 tonnes of ore per day) remains on track to be completed in the first half of 2023. It will incorporate any ventilation impacts due to the shaft 3 and 4 delays as a result of COVID-19 restrictions and reprioritisation of the mobilised workforce over the course of 2022, as previously reported. • During the quarter, Rio Tinto and the Government of Mongolia continued to focus on supporting Oyu Tolgoi to reach the sustainable production milestone and continuing progress on the remaining measures contained in Mongolian Parliamentary Resolution 103 which enabled the agreement to reset the relationship and commence underground mining operations in January 2022. • Rio Tinto now has a 66% direct interest in Oyu Tolgoi following the successful completion of the acquisition of Turquoise Hill Resources Ltd. This is allowing Rio Tinto to focus fully on strengthening its relationship with the Government of Mongolia and moving the project forward with a simpler and more efficient ownership and governance structure. Rio Tinto \| Fourth quarter operations report 6

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Other key projects and exploration and evaluation • At the Resolution Copper project in Arizona, the US Forest Service continued work to progress the Final Environmental Impact Statement (FEIS) and complete actions necessary for the land exchange. We continued to advance partnership discussions with several federally-recognised Native American Tribes who are part of the formal consultation process. We note the US Ninth Circuit Court of Appeals' decision in November to re-hear the appeal before the entire bench of judges. This same court of appeal previously upheld the lower court's ruling, which denied Apache Stronghold's request for injunctive relief. While there is significant local support for the project, we respect the views of groups who oppose it and will continue our efforts to address and mitigate these concerns. Costs attributable to the Resolution project in 2022 were $122 million3. • At the Winu copper-gold project in Western Australia, we continued to strengthen our relationships and advanced agreement making over the quarter with our host Traditional Owners, the Martu and Nyangumarta groups. Planned drilling, fieldwork and study activities continued over the period strengthening the development pathway ahead of applications for regulatory and other required approvals. Costs attributable to the Winu project in 2022 were $56 million3. • At the Simandou iron ore project in Guinea, negotiations towards the co-development of project infrastructure progressed with the December signing of a non-binding term sheet between Rio Tinto joint venture Simfer, Baowu Resources, Winning Consortium (WCS) and the Government of Guinea2. The term sheet further establishes the co-development principles following the incorporation of La Compagnie du TransGuinéen on 27 July 2022, and is a pivotal next step towards securing the shareholder agreement, cost estimates and regulatory authority approvals necessary to progress the co-development of rail and port facilities. Progress was also made on enabling works at Rio Tinto Simfer blocks 3 and 4 and the projected rail spur connection line. We also progressed land access agreements with communities and upgrade works to camp facilities. The award of contracts for key work packages continued in the quarter, including the major package tender evaluations for bulk earthworks and mine process plant equipment. Costs attributable to the Simandou project in 2022 were $189 million3. • We continue to believe that the Jadar lithium-borate project in Serbia has the potential to be a world- class asset, that will support the development of other future industries in Serbia, acting as a catalyst for tens of thousands of jobs for current and future generations, and sustainably produce materials critical to the energy transition. We are focused on consultation with all stakeholders to explore all options related to the project's future. • At the Rincon lithium project in Argentina, development of the three thousand tonne per annum lithium carbonate starter plant progressed. To optimise the process and recoveries, we continue to produce battery-grade lithium carbonate from raw brine from the existing pilot plant operating at site. Early works construction activities progressed on phase one camp facilities with rooms for 250 persons completed. In the period, airstrip permits were received and contractors mobilised. Detailed studies for the full scale operation were advanced, and the exploration campaign progressed to further understand Rincon's basin and brine reservoir. We continue to engage with communities, the province of Salta and the Government of Argentina to ensure an open and transparent dialogue with stakeholders about the works underway. • Costs attributable to Battery Materials were $161 million3. 1A cost and schedule reforecast was performed in June 2022 and estimates that $7.06 billion is required to complete the Hugo North 1 project (an increase of $0.3 billion beyond the 2020 Definitive Estimate). The 2022 Reforecast excludes impacts of COVID-19 restrictions arising after June 2022. The 2022 reforecast remains subject to Oyu Tolgoi Board approval. 2This followed notification to Rio Tinto and the Government of Guinea, of Baowu's earlier entry into a term sheet agreement with WCS in respect of an investment into WCS InfraCo and WCS MineCo (blocks 1 and 2) – an agreement welcomed by Rio Tinto. Baowu Resources Co. is a member of China Baowu Steel Group Corporation Limited. 3Costs are included in the total 2022 exploration and evaluation expense. Excludes amounts capitalised in the period. Rio Tinto \| Fourth quarter operations report 7

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Sustainability highlights We are implementing the 26 recommendations of the Everyday Respect report in line with the management team's commitment to a safe, respectful and inclusive Rio Tinto. We are creating an open and transparent environment which will make positive and lasting change and strengthen our workplace culture for the long term. We exceeded our leadership training target of 80% by the end of the year, achieving 91% completion. On 15 November, we announced the launch of an innovative pilot programme, 'Building Safe and Respectful Workplaces', with BHP and Fortescue, aimed at helping to eliminate disrespectful behaviour in the resources industry including sexual harassment, bullying and racism. The three companies have worked together with leading experts to design and develop the industry-first program aimed at educating new entrants to the sector. On 30 October, we announced a partnership agreement with BHP to accelerate the development of technology that could significantly increase water recovery from mine tailings, and in turn reduce potential safety risks and environmental footprints associated with tailings storage facilities. The first project will involve testing the application of an innovative large-volume filter unit at a BHP copper mine in Chile, which would remove up to 80% of the water in the tailings stream before it is deposited in a storage facility. On 6 December, we announced a collaboration with Oz Minerals and Boliden to unlock new and innovative technologies for managing tailings, helping the mining industry to further reduce risk while extracting the materials the world needs for the energy transition from what was previously regarded as 'waste'. The collaboration will support innovators by providing materials, funding, technical guidance and the potential for field trials at mine operations. Innovators will retain ownership of their intellectual property rights, with a licence to use those rights granted to the companies that support them. Communities & Social Performance (CSP) On 3 November, we announced an investment of A$5.6 million over five years into the Pilbara Cultural Land Management Project (PCLMP) that enables Pilbara Traditional Owners to work together to preserve their Country and culture and keep their people strong. The PCLMP has continued to evolve over the past two years as its members drive the design and development of a program to support cultural and conservation management across their native title determinations. On 21 November, we announced a A$250 million commitment to the State Government's new Resources Community Investment Initiative. An initial pipeline of projects has already been identified. We will work with Western Australian Government to further define the projects that we will contribute funding towards over the next 10 years. On 27 November, the Puutu Kunti Kurrama and Pinikura Aboriginal Corporation and Rio Tinto agreed to create the Juukan Gorge Legacy Foundation after signing a remedy agreement regarding the tragic destruction of two rock shelters at Juukan Gorge in May 2020. Financial support will be provided to the Traditional Owner-led foundation to progress major cultural and social projects including a new keeping place for storage of important cultural materials. The agreement forms part of our commitment to remedying and rebuilding the relationship with the Puutu Kunti Kurrama and Pinikura people. On 9 November 2022, we signed an updated agreement with Yindjibarndi Aboriginal Corporation. This agreement will deliver social and economic outcomes for future generations, and reflects our commitment to create more opportunities for Yindjibarndi people to participate in our operations. On 15 December, Pekuakamiulnuatsh First Nation and Rio Tinto signed their first agreement named Kuessilueu, which means "the wind is turning" in Nelueun. This new agreement marks the beginning of a new era and sets the foundation for an innovative and sustainable partnership. Multidisciplinary teams will identify opportunities for collaboration and establish recommendations in six shared priorities areas - employment and training, business opportunities, cultural heritage and environment, partnerships, energy transition and governance. The goal is to finalise a long-term partnership agreement within 18 months to provide long-term shared benefits across the Saguenay–Lac-Saint-Jean region in Quebec. In December, we released our revised Human Rights policy. The Policy has been developed to advance our human rights performance in line with our business objectives, values, emerging regulatory requirements and stakeholder expectations. Building on our existing commitments, the revised Policy aims to strengthen our position to respect the rights of affected stakeholders and prevent and address our involvement in adverse impacts through our activities and value chain. Key highlights from the quarter are outlined above, with further information available on our website. Rio Tinto \| Fourth quarter operations report 8

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Climate change, product stewardship and our value chain On 30 November, we provided an update at our Investor Seminar on execution of our strategy and evolution of our culture, including Safe Production System (SPS) and decarbonisation activities, to strengthen the business, grow in a decarbonising world and continue to deliver attractive shareholder returns. Details were provided on projects underway to meet challenging decarbonisation targets to halve our Scope 1 and 2 emissions by 2030. Six large emissions abatement programmes are focused on renewable power, process heat, diesel and the ELYSISTM zero carbon aluminium smelting technology to drive the transition to net zero by 2050, supported by high-quality nature based solutions. Capital expenditure to decarbonise our assets of an estimated $7.5 billion to 2030 is being prioritised and phased. This remains subject to Traditional Owner and other stakeholder engagement, regulatory approvals and technology developments. New long-term power contracts will also be required for the aluminium business to meet targets. Our incremental operating expenditure on building new teams and energy efficiency initiatives remains around $200 million in addition to Research and Development investment. In the fourth quarter, we progressed initiatives to decarbonise our business and actively develop technologies to decarbonise our value chains. • On 22 November, we announced that we had proved the effectiveness of our low-carbon iron- making process using ores from our mines in Australia in a small-scale pilot plant in Germany. We are now planning a larger-scale pilot plant to further assess its potential to help decarbonise the steel value chain. The process, known as BioIron™, uses raw biomass instead of metallurgical coal as a reductant and microwave energy to convert Pilbara iron ore to metallic iron in the steelmaking process. BioIron™ has the potential to support near-zero CO2 steel-making, and can result in net negative emissions if linked with carbon capture and storage. • On 30 November, we announced an intention to invest a further $600 million in renewable energy assets in the Pilbara as part of our efforts to decarbonise our Western Australian iron ore operations. The investment is intended to fund the construction of two 100MW solar power facilities as well as 200MWh of on-grid battery storage in the Pilbara by 2026. This is in addition to the 34MW of solar power installed at the recently commissioned Gudai-Darri iron ore mine. • In November, during the China International Import Expo in Shanghai, Rio Tinto and other industry participants signed various Memorandum of Understandings (MoUs) with the China Mineral Resources Group. Our MoU highlights areas we plan to collaborate which includes steel decarbonisation cooperation, creating long-term sustainable and efficient value chains, and mineral resource supply development including cooperation on international resource identification and development. • In December, we signed a MoU with Mitsui & Co. to explore ways to reduce emissions across supply chains - from steel decarbonisation to alternative fuels for mining vehicles and shipping. Rio Tinto \| Fourth quarter operations report 9

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Our markets Commodity prices found some support during the fourth quarter of 2022. The global economy continues to slow, but some external pressures have eased, with the change in China's stance on COVID controls, the fall in energy prices alleviating cost pressures, and markets anticipating a slower pace of interest rate hikes. Global supply chain pressures have also improved and freight rate pressures have eased. However, the Russia-Ukraine war continues to pose energy and food security risks, while fears of recession in the US and Europe remain. • China continues to provide support to its economy on various fronts, including the infrastructure and property sectors. However, the end to COVID controls in December and the subsequent wave of COVID cases bring high volatility in the coming quarter, with increased short-term risks of supply chain disruptions and labour shortages. Although more financing is being provided, consumers remain cautious of the property market. The country's trade balance remains healthy, but slowing global demand poses downside risks to exports. • The US economy has been more resilient than previously envisaged despite interest rate hikes. The labour market added more jobs compared to consensus forecasts, and the unemployment rate remained low. The Federal Reserve continued its tightening monetary policy with a 50 basis points hike in December, following four consecutive 75 basis point increases, and is expected to further tighten albeit at a slower pace until inflation rate is kept under control. Risk of a recession remains as consumer spending will likely be constrained by rising interest rates and depleted savings. • The Eurozone economy showed signs of a downturn, as industrial activity contracted with persistent low demand while inflation remains high. The European Central Bank (ECB) tightened its monetary policy with the latest 50 basis point increase in December and is expected to continue into this year. Although the region reduced the chances of a winter energy crisis through rebuilding of gas inventories, uncertainty remains as the spill over impacts of the ban on Russian crude oil and refined petroleum set in. • Iron ore Platts CFR prices rebounded 22% in the quarter, although the average price of $99/t in the fourth quarter was 4% lower than the third quarter. Market sentiment strengthened after Beijing released three stimulus packages in November to stabilise the real estate market by lifting all previously applied financing constraints on property developers. Prices trended above $110/dmt at year-end as China began dismantling its zero-COVID policy and gradually reopening the economy, while mills also started to replenish in-plant inventories ahead of the Lunar New Year holidays. Steel demand recovery hinges on the country's ability to control the COVID outbreak. • The LME cash aluminium price increased 8% in the quarter, although the average price of $2,324/t in the fourth quarter was 1% lower than the third quarter. The market was supported by low reported levels of inventories, and expectations of improving Chinese demand. In North America, shipments of extrusions and rolled products softened over the quarter, mainly on weaker extrusion shipments into the building and construction sector. Aluminium demand growth from renewables and Electric Vehicles (EVs) remains firm. LME stocks are now at their lowest level in 22 years, and Chinese warehouse stocks are at a six-year low. • The copper LME price rose 10% in the fourth quarter to $3.80/lb, as market sentiment turned more positive on a series of supply disruptions and low and declining visible stocks, which remain at historically low levels. Price support came in the form of Chinese government policy changes such as in the property market and easing COVID-19 restrictions, together with demand growth in renewables and EVs, plus the return of the investor net long position in copper. • The EV market continues to experience strong growth supported by China as lithium carbonate prices remain elevated on the back of strong global demand in the quarter. Short-term uncertainty is expected to remain as the global economy slows and rising interest rates dampen consumers' discretionary spending. Nonetheless, the long-term outlook remains favourable as governments continue their push for EV adoption. Rio Tinto \| Fourth quarter operations report 10

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Average realised prices achieved for our major commodities Units H1 2022 H2 2022 2022 2021 Pilbara iron ore FOB, $/wmt 110.9 86.0 97.6 132.3 Pilbara iron ore FOB, $/dmt 120.5 93.5 106.1 143.8 Aluminium\* Metal $/t 3,808 2,870 3,330 2,899 Copper\*\* US c/lb 447 362 403 424 IOC pellets FOB $/wmt 199.0 180.1 190.3 214.4 \*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 2022 by $175 million (2021 positive impact of $246 million). Rio Tinto \| Fourth quarter operations report 11

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IRON ORE Rio Tinto share of production (Million tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Pilbara Blend and SP10 Lump1 21.4 +5 % +1 % 79.2 +4 % Pilbara Blend and SP10 Fines1 35.1 +9 % +8 % 123.6 +3 % Robe Valley Lump 1.6 +43 % +18 % 5.3 +3 % Robe Valley Fines 2.5 +24 % +18 % 8.3 -2 % Yandicoogina Fines (HIY) 15.2 +5 % +12 % 56.6 -1 % Total Pilbara production 75.9 +8 % +7 % 272.9 +2 % Total Pilbara production (100% basis) 89.5 +6 % +6 % 324.1 +1 % Rio Tinto share of shipments (Million tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Pilbara Blend Lump 15.1 +18 % -1 % 53.9 +5 % Pilbara Blend Fines 32.7 +34 % +3 % 111.1 +1 % Robe Valley Lump 1.2 +17 % -3 % 4.2 +5 % Robe Valley Fines 2.9 +29 % +21 % 9.3 -1 % Yandicoogina Fines (HIY) 14.7 +4 % +8 % 56.9 0 % SP10 Lump1 2.8 -42 % +71 % 12.8 -21 % SP10 Fines1 5.1 -53 % +34 % 22.7 +11 % Total Pilbara shipments2 74.4 +6 % +7 % 270.8 +1 % Total Pilbara shipments (100% basis)2 87.3 +4 % +5 % 321.6 0 % Total Pilbara Shipments (consolidated basis)2, 3 76.3 +6 % +7 % 277.6 +1 % 1SP10 includes other lower grade products. 2Shipments 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. 3While 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 We produced 89.5 million tonnes (Rio Tinto share 75.9 million tonnes) in the fourth quarter, 6% higher than the corresponding period of 2021, and 6% higher than the prior quarter. Fourth quarter shipments of 87.3 million tonnes (Rio Tinto share 74.4 million tonnes) were 4% higher than the fourth quarter of 2021, and 5% higher than the prior quarter. Performance improvements continued across the system during the quarter and we achieved record second half performance across the mine and rail system. We expect Gudai-Darri to reach its nameplate capacity on a sustained basis during 2023. System inventories at the end of December are healthy including strong blasted stocks, mine and port stocks. Approximately 10% of sales in 2022 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 25% of sales in the fourth quarter were made on a free on board (FOB) basis, with the remainder sold including freight. Achieved realised pricing in 2022 was $97.6 per wet metric tonne on an FOB basis, equivalent to $106.1 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 $109.8 per dry metric tonne. In 2021, average realised pricing was $132.3 per wet metric tonne ($143.8 per dry metric tonne). Rio Tinto \| Fourth quarter operations report 12

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In October, representatives of the Robe River Joint Venture partners, Rio Tinto, Mitsui and Nippon Steel, gathered in Perth to celebrate the 50-year anniversary of the venture's first shipment of iron ore from the Pilbara to Japan. Since 1972, the Robe River Joint Venture has shipped more than 1.7 billion tonnes of iron ore. China Portside Trading Our iron ore portside sales in China were 4.8 million tonnes in the fourth quarter of 2022 (5.1 million tonnes in the fourth quarter of 2021), leading to a total of 24.3 million tonnes in 2022 (14.0 million tonnes in 2021). At the end of the December, inventory levels were 7.8 million tonnes, including 5.5 million tonnes of Pilbara product. In 2022 approximately 80% of our portside sales were either screened or blended in Chinese ports. Rio Tinto \| Fourth quarter operations report 13

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ALUMINIUM Rio Tinto share of production ('000 tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Bauxite 13,181 +1 % -4 % 54,618 +1 % Bauxite third party shipments 9,233 +3 % +2 % 38,016 +1 % Alumina 1,941 +2 % +6 % 7,544 -4 % Aluminium 783 +3 % +3 % 3,009 -4 % Bauxite Bauxite production of 13.2 million tonnes was 1% higher than the fourth quarter of 2021, despite being 4% lower than the prior quarter due to equipment downtime at Amrun and Gove in Australia as well as lower production from Compagnie des Bauxites de Guinée (CBG). We shipped 9.2 million tonnes of bauxite to third parties in the fourth quarter, 3% higher than the same period of 2021. Alumina Alumina production of 1.9 million tonnes was 2% higher than the fourth quarter of 2021, and 6% higher than the prior quarter, as a result of the timing of shutdowns and improved processing performance at Yarwun in Queensland, partly offset by plant reliability and unplanned outages at Queensland Alumina Limited (QAL). Production at the Vaudreuil refinery in Quebec, Canada remained stable year on year. As the result of 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 0.8 million tonnes was 3% higher than the fourth quarter of 2021, and 3% higher than the prior quarter, as the rate of pot restarts at Kitimat picked up in the fourth quarter and Boyne smelter cell recovery efforts continued. Recovery at both smelters is progressing with full ramp-up expected to be completed during the course of 2023. All of our other smelters continued to demonstrate stable performance. Average realised aluminium prices including both product and market premiums for value-added products (VAP) and remelt increased by 15% to $3,330 per tonne in 2022 (2021: $2,899 per tonne). This is despite weakened pricing in the second half of 2022 with average realised pricing $2,870 per tonne versus $3,808 in the first half of 2022. The LME price increased by 9% to $2,703 per tonne (2021: $2,480 per tonne), whilst the mid-west premium duty paid increased by 12% to $655 per tonne in 2022 (2021: $584 per tonne). Our VAP sales comprised 50% of primary metal sold in 2022 (2021: 50%). Product premiums for VAP sales averaged $431 per tonne of VAP sold (2021: $230 per tonne). The coal contracts for the Gladstone Power Station supplying power to the Boyne smelter in Australia were renewed in late 2022. We continue to support the potential development of multiple new wind and solar power projects that can, in parallel with firming solutions, start supplying power to our Gladstone assets through the Queensland grid by 2030. Rio Tinto \| Fourth quarter operations report 14

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COPPER Rio Tinto share of production ('000 tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Mined copper Kennecott 47.5 -4 % -6 % 179.2 +12 % Escondida 73.0 +5 % -3 % 298.6 +7 % Oyu Tolgoi 10.8 -17 % -11 % 43.4 -21 % Refined copper Kennecott 36.1 +42 % -8 % 148.3 +3 % Escondida 14.9 +3 % 0 % 60.9 +4 % Kennecott Mined copper production was 4% lower than the fourth quarter of 2021 due to mine sequencing in an area of the pit with lower head grade. Refined copper production was 42% higher than the fourth quarter of 2021 due to the furnace failure in September 2021 which led to the smelter being offline until the end of October. Unplanned maintenance was required in the fourth quarter of 2022 in our anode furnaces leading to extended downtime and continued poor anode production, likely to result in weak cathode production in the first quarter of 2023. Refined copper production will continue to be challenged at Kennecott due to the smelter and refinery performance, until we undertake the largest rebuild in nine years which is planned for the second quarter of 2023 and is expected to take approximately three months. Escondida Mined copper production was 5% higher than the fourth quarter of 2021 due to 7% higher concentrator feed grade in line with mine sequencing in the higher grade area of the pit, partly offset by lower throughput and the impact of road blockades in Northern Chile. Mined copper production was 7% higher than 2021 due to 9% higher concentrator feed grade and 18% higher copper recoverable from ore stacked for leaching due to higher volume of material stacked in both oxide and sulphide leach pads. Oyu Tolgoi Mined copper production from the open pit was 17% lower than the fourth quarter of 2021 due to lower copper grades and recoveries as a result of planned mine sequencing. Gold grades were significantly lower than the fourth quarter of the prior year (0.21g/t vs 0.38g/t), due to the mine sequence. Provisional pricing At 31 December 2022, the Group had approximately 221 million pounds of copper sales that were provisionally priced at 368 cents per pound. The final price of these sales will be determined during the first half of 2023. 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 2022 by $175 million (2021 positive impact of $246 million). NutonTM In December, Rio Tinto made a $15 million investment in Regulus Resources Inc. through its copper leaching technology venture, Nuton. Regulus and Nuton will jointly undertake copper sulphide leach testing utilising Nuton technologies with samples from the AntaKori copper-gold-silver project in northern Peru. Rio Tinto \| Fourth quarter operations report 15

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MINERALS Rio Tinto share of production (million tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Iron ore pellets and concentrate IOC 2.5 +1 % -9 % 10.3 +6 % Rio Tinto share of production ('000 tonnes) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Minerals Borates - B2O3 content 141 +20 % +9 % 532 +9 % Titanium dioxide slag 323 +42 % +4 % 1,200 +18 % Rio Tinto share of production ('000 carats) Q4 2022 vs Q4 2021 vs Q3 2022 Full Year 2022 vs Full Year 2021 Diavik1 1,319 +14 % +11 % 4,651 +21 % 1Reflects 100% ownership of Diavik (previously 60%) from 1st November 2021. Iron Ore Company of Canada (IOC) Iron ore production was 1% higher than the fourth quarter of 2021, despite the fourth quarter being 9% lower than the previous quarter, due to equipment availability at the loadout. Successful deployment of the Rio Tinto Safe Production System (SPS) at the concentrator was completed in the year, with record performance metrics achieved in the year, including monthly records for concentrate production and total material moved in the second quarter. Planning for SPS deployment at the pellet plant commenced in December. Borates Borates production in the fourth quarter was 20% 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. There was some easing of supply chain constraints in the fourth quarter, enabling the business to achieve more than a 10% increase in container and rail shipments compared to 2021 levels. Production in 2022 was 9% higher than 2021, at its highest annual level in more than a decade. Iron and Titanium Titanium dioxide production was 42% higher than the fourth quarter of 2021 due to community disruptions at Richards Bay Minerals in South Africa in 2021, and continued improved performance of operations at Rio Tinto Fer et Titane, Canada. Production constraints related to nationwide electrical power loadshedding at RBM were experienced in the fourth quarter. Diamonds At Diavik, our share of carats was 14% higher than the fourth quarter of 2021 due to the benefit of our increased share of production since taking 100% ownership of Diavik from November 2021, partly offset by lower carats recovered due to lower throughput. Rio Tinto \| Fourth quarter operations report 16

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EXPLORATION AND EVALUATION Pre-tax and pre-divestment expenditure on exploration and evaluation charged to the profit and loss account in 2022 was $897 million, compared with $726 million in 2021. Approximately 45% of this expenditure was incurred by Copper (includes Simandou), 28% by central exploration, 19% by Minerals, 7% by Iron Ore and 1% by Aluminium. Our annual budget for greenfield exploration remains around $250 million, mainly focused on copper, with a growing battery minerals programme. Exploration highlights Rio Tinto has a strong portfolio of projects with activity in 18 countries across seven commodities in early exploration and studies stages. The bulk of the exploration expenditure in the fourth quarter of 2022 focused on copper in Australia, Colombia, Namibia, Peru, United States and Zambia diamonds in Angola and heavy mineral sands projects in Australia and South Africa. Exploration is ongoing for nickel in Canada and Finland and in lithium across all regions, with opportunities emerging in the United States and Africa. Mine-lease exploration continued at Rio Tinto managed businesses including Pilbara Iron in Australia, Diavik in Canada and Cape York in Australia. 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 Rincon Lithium, 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, 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. The Falcon Project in Saskatchewan, Canada, is currently in care and maintenance whilst Rio Tinto considers alternative commercial options, including potential exit. Rio Tinto \| Fourth quarter operations report 17

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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 18

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&nbsp;&nbsp;&nbsp;&nbsp;Contacts Please direct all enquiries to media.enquiries@riotinto.com Media Relations, UK Matthew Klar M +44 7796 630 637 David Outhwaite M +44 7787 597 493 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Media Relations, Australia 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 Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 Rio Tinto plc 6 St James's Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885 Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 This announcement is authorised for release to the market by 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 19

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Rio Tinto production summary Rio Tinto share of production Quarter Full Year % change 2021 Q4 2022 Q3 2022 Q4 2021 2022 Q4 22 vs Q4 21 Q4 22 vs Q3 22 2022 vs 2021 Principal commodities Alumina ('000 t) 1,911 1,838 1,941 7,894 7,544 +2 % +6 % -4 % Aluminium ('000 t) 757 759 783 3,151 3,009 +3 % +3 % -4 % Bauxite ('000 t) 13,095 13,680 13,181 54,326 54,618 +1 % -4 % +1 % Borates ('000 t) 117 130 141 488 532 +20 % +9 % +9 % Copper - mined ('000 t) 132.3 138.0 131.3 493.5 521.1 -1 % -5 % +6 % Copper - refined ('000 t) 40.0 54.1 51.0 201.9 209.2 +28 % -6 % +4 % Diamonds ('000 cts) 1,155 1,192 1,319 3,847 4,651 +14 % +11 % +21 % Iron Ore ('000 t) 72,561 73,726 78,415 276,557 283,247 +8 % +6 % +2 % Titanium dioxide slag ('000 t) 228 310 323 1,014 1,200 +42 % +4 % +18 % Other Metals & Minerals Gold - mined ('000 oz) 73.9 58.2 55.7 344.9 235.0 -25 % -4 % -32 % Gold - refined ('000 oz) 31.5 30.5 30.3 176.4 113.9 -4 % -1 % -35 % Molybdenum ('000 t) 1.1 0.8 1.1 7.6 3.3 -1 % +33 % -56 % Salt ('000 t) 1,471 1,674 1,458 5,848 5,757 -1 % -13 % -2 % Silver - mined ('000 oz) 1,108 1,040 1,042 4,148 3,940 -6 % 0 % -5 % Silver - refined ('000 oz) 516 571 512 2,671 1,950 -1 % -10 % -27 % 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 20

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Rio Tinto share of production Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 ALUMINA Production ('000 tonnes) Jonquière (Vaudreuil) 100 % 338 334 325 336 368 1,364 1,364 Jonquière (Vaudreuil) specialty Alumina plant 100 % 28 25 30 30 29 107 114 Queensland Alumina 80 % 727 704 697 662 678 2,964 2,740 São Luis (Alumar) 10 % 99 94 91 95 97 366 377 Yarwun 100 % 719 745 721 715 769 3,093 2,949 Rio Tinto total alumina production 1,911 1,901 1,864 1,838 1,941 7,894 7,544 ALUMINIUM Production ('000 tonnes) Australia - Bell Bay 100 % 48 46 44 46 48 189 185 Australia - Boyne Island 59 % 75 73 61 65 68 298 267 Australia - Tomago 52 % 78 75 75 76 76 305 302 Canada - six wholly owned 100 % 325 318 323 341 360 1,444 1,341 Canada - Alouette (Sept-Îles) 40 % 63 62 63 64 63 251 251 Canada - Bécancour 25 % 30 28 29 29 29 116 115 Iceland - ISAL (Reykjavik) 100 % 52 50 50 51 52 203 202 New Zealand - Tiwai Point 79 % 67 66 66 67 68 264 267 Oman - Sohar 20 % 20 19 20 20 20 79 79 Rio Tinto total aluminium production 757 736 731 759 783 3,151 3,009 BAUXITE Production ('000 tonnes) (a) Gove 100 % 2,787 3,093 2,637 2,905 2,874 11,763 11,510 Porto Trombetas 12 % 416 240 308 393 391 1,366 1,332 Sangaredi (b) 1,704 1,765 1,946 1,953 1,588 7,109 7,252 Weipa 100 % 8,188 8,527 9,240 8,429 8,328 34,088 34,525 Rio Tinto total bauxite production 13,095 13,625 14,131 13,680 13,181 54,326 54,618 (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 21

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Rio Tinto share of production Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 BORATES Production ('000 tonnes B2O3 content) Rio Tinto Borates - borates 100 % 117 123 137 130 141 488 532 COPPER Mine production ('000 tonnes) (a) Bingham Canyon 100 % 49.7 47.1 33.9 50.7 47.5 159.4 179.2 Escondida 30 % 69.6 68.2 82.3 75.1 73.0 279.5 298.6 Oyu Tolgoi (b) 66 % 13.0 10.2 10.2 12.2 10.8 54.6 43.4 Rio Tinto total mine production 132.3 125.5 126.4 138.0 131.3 493.5 521.1 Refined production ('000 tonnes) Escondida 30 % 14.5 14.4 16.7 14.9 14.9 58.6 60.9 Rio Tinto Kennecott (c) 100 % 25.5 40.2 32.7 39.2 36.1 143.3 148.3 Rio Tinto total refined production 40.0 54.7 49.4 54.1 51.0 201.9 209.2 (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) Production data in the table represent 33.52% ownership in Oyu Tolgoi. On 16 December 2022, Rio Tinto completed the acquisition of 100% of Turquoise Hill Resources Ltd, increasing our ownership in Oyu Tolgoi from 33.52% to 66%. From 1 January 2023, our share of production will be updated to reflect this change. We will also separately report production from open pit and underground operations. (c) We continue to process third party concentrate to optimise smelter utilisation, including 4.8 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 % 1,155 991 1,149 1,192 1,319 3,847 4,651 (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 % 34.7 37.8 22.8 32.5 29.7 139.5 122.7 Escondida 30 % 12.9 10.9 13.7 11.5 14.5 48.5 50.6 Oyu Tolgoi (b) 66 % 26.3 19.8 16.0 14.3 11.5 156.9 61.6 Rio Tinto total mine production 73.9 68.5 52.5 58.2 55.7 344.9 235.0 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 31.5 32.2 20.9 30.5 30.3 176.4 113.9 (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) Production data in the table represent 33.52% ownership in Oyu Tolgoi. On 16 December 2022, Rio Tinto completed the acquisition of 100% of Turquoise Hill Resources Ltd, increasing our ownership in Oyu Tolgoi from 33.52% to 66%. From 1 January 2023, our share of production will be updated to reflect this change. We will also separately report production from open pit and underground operations. Rio Tinto \| Fourth quarter operations report 22

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Rio Tinto share of production Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 IRON ORE Production ('000 tonnes) (a) Hamersley mines (b) 55,049 47,678 52,636 56,650 61,339 210,329 218,304 Hope Downs 50 % 6,567 5,830 6,385 6,264 5,945 24,642 24,425 Iron Ore Company of Canada 59 % 2,498 2,404 2,603 2,776 2,530 9,727 10,312 Robe River - Pannawonica (Mesas J and A) 53 % 3,196 2,774 3,054 3,540 4,178 13,514 13,546 Robe River - West Angelas 53 % 5,252 3,779 3,961 4,496 4,424 18,345 16,660 Rio Tinto iron ore production ('000 tonnes) 72,561 62,465 68,640 73,726 78,415 276,557 283,247 Breakdown of Production: Pilbara Blend and SP10 Lump (c) 20,374 17,081 19,309 21,317 21,443 76,431 79,152 Pilbara Blend and SP10 Fines (c) 32,081 25,658 30,240 32,592 35,097 119,947 123,587 Robe Valley Lump 1,152 1,051 1,180 1,389 1,645 5,102 5,264 Robe Valley Fines 2,044 1,724 1,874 2,151 2,533 8,412 8,281 Yandicoogina Fines (HIY) 14,412 14,548 13,433 13,501 15,168 56,938 56,650 Pilbara iron ore production ('000 tonnes) 70,063 60,061 66,037 70,951 75,886 266,830 272,934 IOC Concentrate 1,009 962 1,282 1,237 1,186 3,863 4,667 IOC Pellets 1,489 1,442 1,321 1,539 1,343 5,864 5,646 IOC iron ore production ('000 tonnes) 2,498 2,404 2,603 2,776 2,530 9,727 10,312 Breakdown of Shipments: Pilbara Blend Lump 12,832 10,809 12,684 15,301 15,089 51,522 53,883 Pilbara Blend Fines 24,308 21,698 25,156 31,597 32,659 109,569 111,110 Robe Valley Lump 1,061 675 971 1,281 1,244 3,981 4,171 Robe Valley Fines 2,237 1,731 2,309 2,392 2,896 9,395 9,329 Yandicoogina Fines (HIY) 14,121 14,487 14,201 13,530 14,661 56,889 56,880 SP10 Lump (c) 4,841 3,827 4,456 1,647 2,824 16,078 12,753 SP10 Fines (c) 10,684 7,067 6,775 3,766 5,062 20,487 22,672 Pilbara iron ore shipments ('000 tonnes) (d) 70,084 60,295 66,552 69,515 74,435 267,921 270,798 Pilbara iron ore shipments - consolidated basis ('000 tonnes) (d) (f) 71,972 61,818 68,114 71,379 76,303 275,161 277,613 IOC Concentrate 989 600 1,083 1,316 1,174 4,110 4,174 IOC Pellets 1,711 1,412 1,484 1,443 1,036 5,865 5,375 IOC Iron ore shipments ('000 tonnes) (d) 2,700 2,012 2,567 2,759 2,210 9,976 9,548 Rio Tinto iron ore shipments ('000 tonnes) (d) 72,784 62,307 69,119 72,274 76,645 277,897 280,346 Rio Tinto iron ore sales ('000 tonnes) (e) 69,489 66,683 71,263 74,587 75,337 273,153 287,871 (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, Gudai-Darri 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 \| Fourth quarter operations report 23

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Rio Tinto share of production Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 MOLYBDENUM Mine production ('000 tonnes) (a) Bingham Canyon 100 % 1.1 1.1 0.4 0.8 1.1 7.6 3.3 (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 % 1,471 1,595 1,030 1,674 1,458 5,848 5,757 SILVER Mine production ('000 ounces) (a) Bingham Canyon 100 % 589 561 385 591 521 2,228 2,057 Escondida 30 % 439 381 393 363 453 1,591 1,590 Oyu Tolgoi (b) 66 % 80 71 67 86 68 328 292 Rio Tinto total mine production 1,108 1,012 846 1,040 1,042 4,148 3,940 Refined production ('000 ounces) Rio Tinto Kennecott 100 % 516 577 290 571 512 2,671 1,950 (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) Production data in the table represent 33.52% ownership in Oyu Tolgoi. On 16 December 2022, Rio Tinto completed the acquisition of 100% of Turquoise Hill Resources Ltd, increasing our ownership in Oyu Tolgoi from 33.52% to 66%. From 1 January 2023, our share of production will be updated to reflect this change. We will also separately report production from open pit and underground operations. TITANIUM DIOXIDE SLAG Production ('000 tonnes) Rio Tinto Iron & Titanium (a) 100 % 228 273 293 310 323 1,014 1,200 (a) Quantities comprise 100% of Rio Tinto Fer et Titane and Rio Tinto's 74% interest in Richards Bay Minerals (RBM). 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 2022. Rio Tinto \| Fourth quarter operations report 24

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 ALUMINA Smelter Grade Alumina - Aluminium Group Alumina production ('000 tonnes) Australia Queensland Alumina Refinery - Queensland 80 % 909 880 871 827 847 3,705 3,425 Yarwun refinery - Queensland 100 % 719 745 721 715 769 3,093 2,949 Brazil São Luis (Alumar) refinery 10 % 993 940 910 946 975 3,662 3,771 Canada Jonquière (Vaudreuil) refinery - Quebec (a) 100 % 338 334 325 336 368 1,364 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 % 28 25 30 30 29 107 114 Rio Tinto percentage interest shown above is at 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 25

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 ALUMINIUM Primary Aluminium Primary aluminium production ('000 tonnes) Australia Bell Bay smelter - Tasmania 100 % 48 46 44 46 48 189 185 Boyne Island smelter - Queensland 59 % 126 123 103 110 114 502 450 Tomago smelter - New South Wales 52 % 150 145 145 148 147 592 586 Canada Alma smelter - Quebec 100 % 119 117 121 122 122 471 482 Alouette (Sept-Îles) smelter - Quebec 40 % 157 154 157 159 158 629 628 Arvida smelter - Quebec 100 % 43 42 42 43 44 168 171 Arvida AP60 smelter - Quebec 100 % 15 14 14 15 15 60 58 Bécancour smelter - Quebec 25 % 119 111 117 116 116 463 459 Grande-Baie smelter - Quebec 100 % 58 57 58 59 58 230 232 Kitimat smelter - British Columbia 100 % 25 25 26 38 57 263 145 Laterrière smelter - Quebec 100 % 64 63 63 64 64 252 253 Iceland ISAL (Reykjavik) smelter 100 % 52 50 50 51 52 203 202 New Zealand Tiwai Point smelter 79 % 85 83 83 85 85 333 336 Oman Sohar smelter 20 % 100 97 98 100 100 395 395 Rio Tinto percentage interest shown above is at 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 26

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 BAUXITE Bauxite production ('000 tonnes) Australia Gove mine - Northern Territory 100 % 2,787 3,093 2,637 2,905 2,874 11,763 11,510 Weipa mine - Queensland 100 % 8,188 8,527 9,240 8,429 8,328 34,088 34,525 Brazil Porto Trombetas (MRN) mine 12 % 3,469 2,000 2,569 3,275 3,256 11,383 11,100 Guinea Sangaredi mine (a) 23 % 3,786 3,922 4,323 4,339 3,530 15,797 16,115 Rio Tinto share of bauxite shipments Share of total bauxite shipments ('000 tonnes) 13,031 13,876 14,054 13,294 13,561 54,278 54,784 Share of third party bauxite shipments ('000 tonnes) 8,988 10,135 9,599 9,049 9,233 37,596 38,016 (a) Rio Tinto has a 22.95% shareholding in the Sangaredi mine but benefits from 45.0% of production. Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 BORATES Rio Tinto Borates - borates 100 % US Borates ('000 tonnes) (a) 117 123 137 130 141 488 532 (a) Production is expressed as B2O3 content. Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 COPPER & GOLD Escondida 30 % Chile Sulphide ore to concentrator ('000 tonnes) 35,787 30,235 34,318 32,894 33,911 133,872 131,358 Average copper grade (%) 0.71 0.81 0.87 0.83 0.76 0.75 0.82 Mill production (metals in concentrates): Contained copper ('000 tonnes) 203.6 191.5 239.5 214.6 212.8 815.5 858.4 Contained gold ('000 ounces) 42.9 36.3 45.8 38.2 48.4 161.7 168.7 Contained silver ('000 ounces) 1,462 1,270 1,311 1,210 1,510 5,305 5,301 Recoverable copper in ore stacked for leaching ('000 tonnes) (a) 28.4 35.9 34.8 35.8 30.4 116.3 136.9 Refined production from leach plants: Copper cathode production ('000 tonnes) 48.4 48.1 55.7 49.6 49.7 195.3 203.1 (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 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 27

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 COPPER & GOLD (continued) Rio Tinto Kennecott Bingham Canyon mine 100 % Utah, US Ore treated ('000 tonnes) 9,809 10,130 6,862 10,125 10,449 37,776 37,565 Average ore grade: Copper (%) 0.55 0.51 0.55 0.56 0.52 0.47 0.53 Gold (g/t) 0.21 0.19 0.17 0.16 0.14 0.21 0.16 Silver (g/t) 2.55 2.36 2.39 2.50 2.20 2.57 2.36 Molybdenum (%) 0.020 0.021 0.017 0.021 0.020 0.029 0.020 Copper concentrates produced ('000 tonnes) 187 176 136 192 184 648 688 Average concentrate grade (% Cu) 26.3 26.8 24.9 26.2 25.6 24.5 26.0 Production of metals in copper concentrates: Copper ('000 tonnes) (a) 49.7 47.1 33.9 50.7 47.5 159.4 179.2 Gold ('000 ounces) 34.7 37.8 22.8 32.5 29.7 139.5 122.7 Silver ('000 ounces) 589 561 385 591 521 2,228 2,057 Molybdenum concentrates produced ('000 tonnes): 2.2 2.1 0.9 1.8 2.0 14.8 6.8 Molybdenum in concentrates ('000 tonnes) 1.1 1.1 0.4 0.8 1.1 7.6 3.3 Kennecott smelter & refinery 100 % Copper concentrates smelted ('000 tonnes) 157 213 152 166 194 665 725 Copper anodes produced ('000 tonnes) (b) 32.9 45.8 27.9 46.2 24.5 142.5 144.5 Production of refined metal: Copper ('000 tonnes) (c) 25.5 40.2 32.7 39.2 36.1 143.3 148.3 Gold ('000 ounces) (d) 31.5 32.2 20.9 30.5 30.3 176.4 113.9 Silver ('000 ounces) (d) 516 577 290 571 512 2,671 1,950 (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 4.8 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 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 28

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 COPPER & GOLD (continued) Turquoise Hill Resources Oyu Tolgoi mine (a) 66 % Mongolia Ore Treated ('000 tonnes) 10,573 9,581 9,685 10,685 9,411 39,124 39,361 Average mill head grades: Copper (%) 0.46 0.40 0.40 0.42 0.45 0.50 0.42 Gold (g/t) 0.38 0.32 0.26 0.22 0.21 0.54 0.25 Silver (g/t) 1.27 1.25 1.15 1.32 1.21 1.26 1.24 Copper concentrates produced ('000 tonnes) 182.7 144.3 146.0 173.6 151.9 749.6 615.8 Average concentrate grade (% Cu) 21.3 21.0 20.9 20.9 21.3 21.7 21.0 Production of metals in concentrates: Copper in concentrates ('000 tonnes) 38.9 30.3 30.6 36.3 32.3 163.0 129.5 Gold in concentrates ('000 ounces) 78.6 59.2 47.6 42.7 34.2 468.1 183.8 Silver in concentrates ('000 ounces) 239 211 201 256 204 977 871 Sales of metals in concentrates: Copper in concentrates ('000 tonnes) 34.4 29.9 35.3 41.8 25.3 139.4 132.3 Gold in concentrates ('000 ounces) 102.2 57.4 67.9 56.0 26.2 434.7 207.5 Silver in concentrates ('000 ounces) 192 179 224 282 152 783 836 (a) Production data in the table represent 33.52% ownership in Oyu Tolgoi. On 16 December 2022, Rio Tinto completed the acquisition of 100% of Turquoise Hill Resources Ltd, increasing our ownership in Oyu Tolgoi from 33.52% to 66%. From 1 January 2023, our share of production will be updated to reflect this change. We will also separately report production from open pit and underground operations. Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 DIAMONDS Diavik Diamonds (a) 100 % Northwest Territories, Canada Ore processed ('000 tonnes) 596 496 537 590 535 2,540 2,158 Diamonds recovered ('000 carats) 1,356 991 1,149 1,192 1,319 5,843 4,651 (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 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 29

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 IRON ORE Rio Tinto Iron Ore Western Australia Pilbara Operations Saleable iron ore production ('000 tonnes) Hamersley mines (a) 55,049 47,678 52,636 56,650 61,339 210,329 218,304 Hope Downs 50 % 13,133 11,660 12,771 12,529 11,891 49,284 48,850 Robe River - Pannawonica (Mesas J and A) 53 % 6,031 5,234 5,762 6,679 7,882 25,497 25,558 Robe River - West Angelas 53 % 9,909 7,130 7,474 8,484 8,347 34,613 31,435 Total production ('000 tonnes) 84,122 71,703 78,643 84,342 89,458 319,724 324,146 Breakdown of total production: Pilbara Blend and SP10 Lump (b) 24,998 20,827 23,228 25,452 25,251 92,463 94,758 Pilbara Blend and SP10 Fines (b) 38,681 31,094 36,220 38,709 41,158 144,826 147,180 Robe Valley Lump 2,173 1,982 2,226 2,621 3,103 9,626 9,932 Robe Valley Fines 3,857 3,252 3,536 4,058 4,779 15,871 15,625 Yandicoogina Fines (HIY) 14,412 14,548 13,433 13,501 15,168 56,938 56,650 Breakdown of total shipments: Pilbara Blend Lump 16,616 13,626 16,043 18,860 18,153 64,697 66,682 Pilbara Blend Fines 31,620 27,915 32,243 38,186 38,835 138,203 137,179 Robe Valley Lump 2,001 1,273 1,832 2,417 2,348 7,512 7,870 Robe Valley Fines 4,221 3,266 4,357 4,514 5,464 17,727 17,602 Yandicoogina Fines (HIY) 14,121 14,487 14,201 13,530 14,661 56,889 56,880 SP10 Lump (b) 4,841 3,827 4,456 1,647 2,824 16,078 12,753 SP10 Fines (b) 10,684 7,067 6,775 3,766 5,062 20,487 22,672 Total shipments ('000 tonnes) (c) 84,104 71,462 79,907 82,920 87,347 321,592 321,636 Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 Iron Ore Company of Canada 59 % Newfoundland & Labrador and Quebec in Canada Saleable iron ore production: Concentrates ('000 tonnes) 1,718 1,638 2,183 2,106 2,020 6,578 7,947 Pellets ('000 tonnes) 2,535 2,456 2,250 2,621 2,288 9,986 9,615 IOC Total production ('000 tonnes) 4,254 4,094 4,433 4,727 4,308 16,564 17,562 Shipments: Concentrates ('000 tonnes) 1,684 1,022 1,845 2,241 1,999 7,000 7,108 Pellets ('000 tonnes) 2,914 2,405 2,527 2,457 1,764 9,988 9,153 IOC Total Shipments ('000 tonnes) (c) 4,598 3,427 4,372 4,699 3,763 16,989 16,261 Global Iron Ore Totals Iron Ore Production ('000 tonnes) 88,375 75,797 83,076 89,069 93,766 336,288 341,708 Iron Ore Shipments ('000 tonnes) 88,702 74,889 84,279 87,619 91,110 338,581 337,897 Iron Ore Sales ('000 tonnes) (d) 85,256 79,194 86,108 89,689 89,650 333,185 344,641 (a) Includes 100% of production from Paraburdoo, Mt Tom Price, Western Turner Syncline, Marandoo, Yandicoogina, Brockman, Nammuldi, Silvergrass, Channar, Gudai-Darri 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 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 30

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Rio Tinto operational data Rio Tinto interest Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Full Year 2021 Full Year 2022 SALT Dampier Salt 68 % Western Australia Salt production ('000 tonnes) 2,152 2,333 1,507 2,449 2,133 8,555 8,422 TITANIUM DIOXIDE SLAG Rio Tinto Iron & Titanium 100 % Canada and South Africa (Rio Tinto share) (a) Titanium dioxide slag ('000 tonnes) 228 273 293 310 323 1,014 1,200 (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 31 December 2022. The data represents production and sales on a 100% basis unless otherwise stated. Rio Tinto \| Fourth quarter operations report 31

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