Rio Tinto hopes $20bn Guinea iron ore, rail and port plan will pave way for ‘new era’ of mining. The world’s biggest mining project, a $20bn iron ore, rail and port development in a remote corner of west Africa, is expected to start this year after a 27-year wait beset by setbacks, scandals and several false dawns. UK-listed Rio Tinto first secured an exploration licence in the Simandou mountains in south-eastern Guinea, 550km from the coastal capital, in 1997. Since then the country of 13mn people has had two coups d’état, four heads of state and three presidential elections. Click here to read the full article