PT Bukit Asam is planning to re-open pit Mahayung. It has thick overburden bccausc this location was oncc a disposal area from Tambang Air Laya (TAL). Pit Mahayung uses two types of Excavator, 1 type of dumptruck and 1 type of bulldozer namelv komatsu PC800, PCI250, HD785 and D155A. Both types of excavators are not used together, but only on certain conditions. In May 2016, the production targe…