Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 75

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 75
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 reflect operational and ownership changes. These include changes due to the transition to closure or remediation obligations for legacy assets, and reclassification of facilities. Our facilities are regulated and permitted and have been managed for many years to comply with local laws, regulations, permits, licences and other requirements. Tailings management has been included in the Group risk register since 2010, and our Group safety standard for tailings and water storage facilities has been in place since 2015. Our internal assurance processes verify that our managed TSFs operate in accordance with this standard, which we updated in 2021. Our TSFs have emergen cy response plans – tested through training exercises in collaboration with stakeholders such as local emergency services – and follow strict business resilience and communication protocols. 2024 progress We have continued to progress our implementation of the Global Industry Standard on Tailings Management (GISTM). This focuses on preventing tailings facility failures, reducing the social and environmental impacts of tailings facilities, and improving engagement and transparency on tailings with local communities. We have also assessed our progress on implementation through self- assessment and independent audits, using ICMM’s GISTM Conformance Protocols. In 2024, we completed implementation work for the tailings facilities that have a “Very High” or “Extreme” consequence classification, except where longer-term engineering works are required. However, there is still work to do to embed the changes made. The product group and Closure implementation teams continue to work towards full conformance for the remaining tailings facilities by August 2025. In August 2024, in accordance with Principle 15 of the GISTM, we updated our public tailings disclosures for the “Very High” and “Extreme” tailings storage facilities we operate. We also updated our disclosures for the other tailings facilities we operate that have lower GISTM consequence classifications, based on the Investor Mining and Tailings Safety Initiative (IMTSI) request for public disclosures on tailings.

| For more informationsee riotinto.com/tailings |

In 2024, we: – Continued to regularly convene the Tailings Management Committee with our designated Accountable Executives. This provides coordinated governance of tailings management practices across the Group. – Conducted multidisciplinary risk assessments for all our “Very High” and “Extreme” consequence facilities. – Continued to play an active role in the ICMM tailings working group, which provides guidance to support the safe, responsible management of tailings with the goal of eliminating fatalities and catastrophic