TIN MINING PRODUCTION SCHEDULING IN PT XYZ

• Main Author: ANDHIA PUTRIE SUWANDI (NIM : 12114035), DHEA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26577
• Institution: Institut Teknologi Bandung

PT XYZ is one of the tin mining companies in Indonesia located in Bangka Belitung Islands. PT XYZ will mine in one of its mining operation areas, called area B, using open pit mining system. Area B has two mining locations named Block 1 and Block 3. PT XYZ expects an annual production rate of 1200 tonnes of tin from area B. <br /> <br /> Mining production scheduling will be simulated using the MineSched software. The mining scenario is focused on the mining sequence of Block 1 and Block 3. There are three scenarios that are made where in the first scenario, Block 1 will be mined first followed by Block 3, in the second scenario Block 3 will be mined first followed by Block 1 and in the third scenario both of Block 1 and Block 3 will be mined simultaneously. <br /> <br /> Based on economic analysis, the first scenario has NPV of US$1.489.588,73 with IRR of 15.91% and the payback period of it will be reached after 7 years. The second scenario has NPV of US$6.164.454,50 with IRR of 25.63% and the payback period of it will be reached after 4 years. The third scenario has NPV of US$2.384.387,03 with IRR of 17.30% and the payback period of it will be reached after 6 years. From the three scenarios above, it can be concluded that the best scenario is the second scenario that started from Block 3 and then continued by Block 1.