Delta Dunia Makmur (DOID), parent of coal mining contractor BUMA, posted net profit of US$23.75 million in the first quarter of 2017, skyrocketed 675.5% from the corresponding period of 2016. DOID reported sales revenue of US$181.35 million in the period, jumped by 43% from the same period last year, while operating profit tripled to US$44.49 million.To subscribe please click here