PT Bukit Makmur Mandiri Utama – BUMA is Jakarta based coal mining services company with more than 15 years of experience in providing coal mining contractor services, including open-pit coal mining and mine operation services. BUMA’s operation site are concentrated in Kalimantan (East, South and Central Kalimantan). BUMA is a member of PT Delta Dunia Makmur Tbk (IDX : DOID).
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