Conceptual Planning of North Block Nickel Ore Mine PT Pacific Ore Resources, Bombana Regency, Southeast Sulawesi Province

Abstract

PT Pacific Ore Resources, a nickel laterite mining company in North Kabaena, Bombana Regency, Southeast Sulawesi Province, is conducting a study to determine optimal mining boundaries, pit design, production scheduling, cash flow, and sensitivity analysis in the North Block. The study uses quantitative methods and data processing with Micromine v.2023 and Microsoft Excel software. The report shows that the company has 262,996 tons of laterite nickel ore resources, with the optimal pit limit in pit shell 6 at USD 961.991. The evaluation of ore reserves in the pit design revealed 216,771 tons with an overburden of 683.255 BCM, requiring a waste dump design to accommodate up to 685.763 BCM of waste material. The mine haul road design includes new and existing roads with a road length of 687.31 meters and 5315.42 meters. The cash flow analysis results show an NPV value of USD 1,050,838.64, an IRR of 37.94%, and PBP is 70 days. The sensitivity analysis shows that changes in nickel prices affect the NPV most compared to changes in operating and capital costs.