HUALAN BIOLOGICAL ENGINEERING, INC. is principally engaged in the research and development, production and sale of blood products and vaccine products. The Company mainly provides human albumin, intravenous gammaglobulin, influenza vaccines and other products. The Company's products also include human immunoglobulin, human tetanus immunoglobulin, human hepatitis B immunoglobulin, human immunoglobulin (pH4) for intravenous injection, human coagulation factor VIII, human prothrombin complex, human surgical lyophilized fibrin sealant and human thrombin lyophilized for external use. The Company distributes its products in the domestic market and to the overseas markets.