“The SFO has opened an investigation into suspected corruption in the conduct of business in the Republic of Guinea by the Rio Tinto group, its employees and others associated with it,” the SFO said in a statement.The AFP has already said it is investigating the payment, which led to the sacking of two senior Rio executives. …Rio  …self-reported in November 2016”. …Alan Davies, the head of Rio’s energy and mineral unit …was fired last year along with Debra Valentine, the company’s head of legal affairs.”