Tiangong International Company Limited is a Hong Kong-based investment holding company. The Company and its subsidiaries are engaged in the manufacture and sale of high speed steel (HSS), HSS cutting tools and die steel. The Company's operates in three product segment: HSS, HSS cutting tools and die steel. HSS involves the purchase of various rare metals, such as tungsten, molybdenum, chromium, vanadium and other raw materials, production of HSS for both internal supply to the Company's HSS cutting tools production, and external sale to customers outside the Company. HSS cutting tools involves the production and sales of HSS cutting tools to external customers. The Company produces a range of HSS cutting tools products, which can be categorized into four types: twist drill bits, screw taps, end mills and turning tools. Die steel involves the purchase of various rare metals and other raw materials, and the production and sale of die steel to customers.