Dame Moya Greene has notified the Board of her intention to step down as a non-executive director of Rio Tinto with immediate effect.
Greene, who joined the Rio Tinto board in September 2018, said: "I have enjoyed my time on the Rio Tinto board but the time commitment has proven more considerable than I had expected and I have taken the difficult decision to step down from Rio in order to re-focus on my other roles."
Rio Tinto Chairman Simon Thompson said: "I would like to thank Moya for her contribution to Rio Tinto during her time on the board. My fellow directors and I wish her well for the future."