Brazilian mining company Vale (VALE -2.3%) says there are "a lot of uncertainties" regarding its...

|About: Vale S.A. (VALE)|By:, SA News Editor

Brazilian mining company Vale (VALE -2.3%) says there are "a lot of uncertainties" regarding its massive Simandou iron ore project in Guinea due to difficult negotiations with the local government. The project has the potential to ship over 50M tons a year of high-class iron ore, but a complex port and railway system are needed, and the cost of developing this infrastructure could total more than $12B.