PT Petrosea Tbk provides engineering, construction, mining, and other services to the oil and gas, infrastructure, industrial and manufacturing, and utility sectors in Indonesia and internationally. It operates through three segments: Mining, Services, and Engineering and Construction. The Mining segment provides mining contract services, including overburden stripping, drilling, blasting, lifting, hauling, mine, and mine partnering services, as well as engages in the sale of coal. The Services segment offers supply base facilities and port services. The Engineering and Construction segment provides a range of engineering, procurement, and construction services, as well as equipment hire services. This segment also supplies skilled trade personnel. The company also provides investment, agriculture, processing industry, trading, port management, port operation, transportation, contracting and rendering, and warehouse services, as well as geology solutions. The company was incorporated in 1972 and is headquartered in South Tangerang, Indonesia.