China cites ‘conclusive evidence’ in Rio Tinto case

China has "conclusive evidence" that four employees of the world’s second-largest mining company were stealing Chinese state secrets, the country’s foreign ministry said. Four employees of Rio Tinto — one Australian and three Chinese — have been arrested on suspicion of espionage and stealing state secrets. Australian Stern Hu is the general manager of Rio Tinto’s Shanghai office, where all the employees work.