PT Petrosea Tbk is an Indonesian based firm engaged in multi-disciplinary mining, infrastructure, and oil and gas services. It operates in three business segments. The Mining segment, which is the key revenue driver, covers mining contracts like overburden stripping, drilling, blasting, lifting, hauling, mine services, and mine partnering. The Services segment covers supply base facilities and port services. The Engineering and Construction segment provides multidisciplinary engineering, procurement, and construction services to oil and gas (onshore and offshore), infrastructure, industrial, and manufacturing and utility sectors. This segment also includes the supply of skilled trade personnel and equipment hire services.