Sumen was first a hardware company.

Wholesale of hardware products; wholesale distribution of car spare parts; wholesale distribution of electrical equipment; wholesale distribution of other mechanical equipment and electronics; manufacture of other instrument instruments; wholesale distribution of construction materials; wholesale distribution of other chemical products (excluding hazardous and controlled chemicals); import/export of various goods and technologies (without a list of goods and technologies for which import/export is restricted by the State); manufacture of electrical machinery and equipment; manufacture of microelectrics and other electrical mechanisms; repair of general equipment; repair of instrumentation instruments; repair of electrical equipment; repair of other machinery and equipment; manufacture of other day-to-day miscellaneous items; manufacture of other metal tools; manufacture of metal accessories for construction, furniture; manufacture of parts for building decorations and water heating pipes; manufacture of other metal products; manufacture of other metal products; and manufacture of other metal products without prior authorization.