Grand Ocean Advanced Resources Company Limited, an investment holding company, engages in the production and sale of coal and minerals in Hong Kong and the People's Republic of China. The company engages in coal-related operations at the Inner Mongolia mine in China. It also provides management services. The company was formerly known as DeTeam Company Limited and changed its name to Grand Ocean Advanced Resources Company Limited in July 2015. Grand Ocean Advanced Resources Company Limited was founded in 1996 and is headquartered in Central, Hong Kong.