PT Harum Energy Tbk is an Indonesia-based holding company primarily engaged in integrated coal mining industry. The Company operates a vertically integrated supply chain linking its mining operations through to the offshore ship loading. The coal mining supporting infrastructure that it owns includes hauling roads, ports, coal processing plants, tugboats and barges as well as floating cranes. Through its subsidiaries, such as PT Mahakam Sumber Jaya, PT Tambang Batubara Harum and PT Karya Usaha Pertiwi, it manages a number of coal mining sites in Kalimantan Timur, Indonesia. It sells its coal primarily to power generation companies in China and South Korea. Its other subsidiaries include Harum PT Layar Lintas Jaya, which is engaged in barging and transshipment services; Energy Australia Ltd, and Harum Energy Capital Ltd.