Determining of Mine Planning Alternative Pit South Pasopati at PT Borneo Indobara

Abstract

PT Borneo Indobara plans to develop the South Pasopati Pit, a 6200 kcal/kg coal mining project that has a higher selling price than other pits. However, the remote location and lack of connection to active mining operations require large infrastructure investments and limited production forest area licenses. This study aims to analyze the economic feasibility of the South Pasopati Pit project by evaluating various alternative waste dump scenarios. The method used is Net Present Value - Discounted Cash Flow (NPV-DCF) based economic analysis complemented by decision tree analysis and sensitivity analysis using tornado charts to measure the resilience of the selected alternative to price changes. The results showed that the 6th alternative, which is waste disposal only in the South Pasopati (PSS) area, is the most profitable option with an expected value of $30,675k. The alternative of disposal in North Pasopati (PSU) yielded $25,718k, while that in West Kusan Girimulya (KGW) only reached $12,412k. This study confirms that the selection of waste disposal sites has a significant effect on project profitability. Therefore, PT Borneo Indobara needs to comprehensively consider economic and regulatory aspects to maximize investment value and reduce the risk of uncertainty in the development of the South Pasopati Pit.