Coal miner Delta Dunia Makmur (DOID), parent of mining contractor Bukit Makmur Mandiri Utama (BUMA), has secured on hand coal mining contracts of US$5.5 billion. Eddy Poerwanto, DOID’s Finance Minister, said its unit, BUMA, has signed contract with PT Tanah Bumbu Resources (TBR), subsidiary of Geo Energy Resources Limited listed on Singapore Stock Exchange (SGX). TBR operation is located in Tanah Bumbu regency, South Kalimantan.
