pt bentala coal mining
pt bentala coal mining company profile . pt bentala coal mining company profile . pt bentala coal mining . bentala coal mining pt coal surface mining. pt bentala coal mining company profile hornibecvaeu PT Garda Tujuh Buana Tbk (hereinafter shall also be referred to as "GTB") was established in GTB was granted exploitation mining concession The Company changed its name to PT Resource Alam ...