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coul mining barito timur coul mining barito timur rijurajfoundation. mining coal ini kalteng omkarvrejain. mining coal company barito timur viewchannelmx mining coal ini kalteng Online Talking Senamas Energindo Mineral (SEM) is a lowrank thermal coal mine covering an area of 2,000 ha located in the Barito Timur regency, Central Kalimantan.