PT. Manambang Muara Enim is one of the coal mining company in Indonesia. Bukit Asam Steam Power Plant (PLTU BA) is the largest consumer of coal from PT. Manambang Muara Enim. Based on geological data of the company, each seams had different coal quality. Seam C has low total sulfur and high calorific value, while seam A and seam D5 has high total sulfur and low calorific value. The actual condi…