As one of Chinese leading suppliers of materials for refractories, steel-making, aluminium smelter, welding flux and other metallurgical industries. Sunstone, has been established in 1998 with valuable experiences in industry minerals, which resulted in strong capital structure and modernized factory.

As a subsidiary company of Sunsonte, Sunstone International, engages in import and export of metallurgical, mineral, and welding flux materials etc. Now, we have four business departments and one subsidiary, Metallurgical department, Welding flux department, Tianjin Import department, Kunshan branch and RuiTuo Mining Limited Corporation. The turnover in 2008 of Sunstone has exceeded 200 million U.S.Dollars.