Group subsidiary Thaweesup : As a group, the company operates about mineral resources exploration, request for a mining concession, mining and sell minerals from coal mining. Work has progressed in many areas in the province of northern Thailand such as Tak, Lamphun, Lampang,etc. The Group company operated in the mining business for over 15 years, Consists of several subsidiaries : Chiang Mai Thaweesup Engineering Company Limited , Lan na Thaweesup Limited partnership, Siam Supthawee trading company Limited, Lanna Thaweesup company limited.