Biomass energy research and development and technology promotion services; lead、 zinc、 copper、 molybdenum、 gold、 iron ore, building materials, cement, cement products, Daily necessities, Hardware and Electrical, Metal materials, Steel structure, Mechanical equipment and accessories, Packaging materials, office supplies, local specialties, Chinese herbal medicine, agricultural and sideline products, aquatic products, Grain and Oil, scrap metal( Except for productive scrap metal) Sale; Agriculture、 Forest waste and straw purchase。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)