Santa Fe Project (fourth mine) EAST of Mina Real At the Mina Grande area processing of mineralized material from historical dumps continued. A total of 2,758 tonnes were transported to the plant. During the period September 1, 2012 to March 31, 2013, 6,881 tonnes were processed at the plant with average grades of 1.89 g/t Au and 244 g/t Ag.