The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia. It is located approximately 70 kilometres (43 mi) northeast of Padang. By 2008, the mine had estimated reserves about 90.3 million tonnes of coking coal, of which 43 million tonnes was mineable. The mine is owned by PT Tambang Batubara Bukit Asam (PTBA) and operated by the China National Technology Import-Export Corporation (CNTIC).