technical report for ying gold silverleadzinc property, henan
Jun 6, 2012 Silvercorp acquired an interest in the Ying / SGX project in 2004,. 1 . a common estimation method in China, the technique tends to produce estimates that are higher in grade and . TLP mine and at four adits of the SGX mine, small tricycle trucks with a payload of up to 3 t Plant 1 (Xiayu Plant, 600 tpd).