PT Dizamatra Powerindo is a coal company with a Mining Business License Area of 971 Ha. The increasing price of coal makes the companies plan to increase production targets in the following year. In 2022 PT Dizamatra Powerindo's production target is 2.500.000 tons and plans to increase the production target until 3.000.000 tons. So it is necessary to plan and redesign the pit openings, disposal…