Australia's Foreign Investment Review Board (FIRB) has given approval to an investment by Wuhan Iron & Steel (Wisco) into South Australian iron-ore company Centrex Metals, according to a Centrex announcement yesterday.The deal is worth up to A$271 million ($245 million) and will allow Wisco, China's third largest steel company, to acquire a 60% stake in five iron-ore tenements along the Eyre Peninsula that are owned by Centrex.The transaction already has approval from China's National Development and Reform Council.Wisco's stake in the iron ore ...