Rio Tinto's chairman Simon Thompson to step down in latest shakeup following Indigenous cave destruction CNN 3/3/2021 By Laura He, CNN Business © Luke MacGregor/Bloomberg via Getty Images Simon Thompson will step down as chairman of Rio Tinto in 2022. Rio Tinto Chairman Simon Thompson is stepping down over the company's destruction of a 46,000-year-old, sacred Indigenous site in Australia, becoming the latest in a string of departures connected to the event. Thompson, who has chaired the company since 2018, has told Rio Tinto's board that he will not seek re-election in ...