Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 202

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 202
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. How the Board monitors culture The Board monitors the Group’s culture by receiving regular updates from the Executive Committee and management. They monitor progress of the implementation of the recommendations of the Everyday Respect Report , review data from the myVoice confidential whistleblowing program and twice-yearly People Survey results, and receive a quarterly report on the Group’s cultural journey.

| For more informationon how the Board monitors culture and engageswith our people, see page106. |

| Annual Report on Form 20-F 2024 | 110 | riotinto.com |

Directors’ report

Evaluating our performance This year, the Board’s annual performance evaluation was led internally. This aligns with the corporate governance principles for both the UK and Australia. Every 3 years, we engage a professional external adviser to undertake an independent evaluation of the Board’s effectiveness, and, in 2023, Jan Hall, of business advisory company No.4, carried this out. This external evaluation took an in- depth look at Board dynamics and how the Board operated. The Board agreed actions for improvement from this evaluation, which were detailed in our 2023 Annual Report and we have worked to implement these during 2024. The objectives of the 2024 internal evaluation were then to: 1) Assess progress against the actions from the 2023 external evaluation, and determine if more work is needed to close these out. 2) Understand where the Board is doing well and where improvements could be made, taking into account 2023’s detailed review. 3) Set a benchmark against which effectiveness can be assessed in future years. How the 2024 evaluation worked All Board members completed an anonymous questionnaire that looked at: – progress against the specific actions from the 2023 evaluation – the performance of the Board during the year – the performance of its committees – feedback on the performance of the Chair and individual Directors. In addition to the questionnaire, each Director had an externally facilitated interview to capture deeper and more nuanced feedback on board effectiveness. What the evaluation found The evaluation concluded that the Board and its Committees were working well, and that the performance of the Chair and individual Directors was effective. The consensus from the questionnaire and the interviews was very positive. Feedback noted the improvement over the year in terms of structuring the Board’s agendas and papers to allow more time to be focused on discussion and on material strategic topics. The external evaluation in 2023 had identified this as an improvement area. There was agreement however that further improvement is required, and work will be undertaken on