Production、 Processing: aquatic products、 agricultural and sideline products( The above projects are under preparation, No related business activities may be carried out during the preparation period.); Purchase and sale of agricultural and livestock products( Tobacco removal、 food、 cotton、 seed、 seedlings、 Breeding livestock and poultry); Sale: Mechanical equipment and accessories, Building decoration materials(Removal of hazardous chemicals), sand and gravel, cement, electrical equipment, Hardware and Electrical, Non-ferrous metals, Electronics( No radio transmitter equipment), rubber products, communications equipment( No radio transmitter equipment); Import and export of goods and technology( law、 Projects prohibited by administrative regulations shall not be operated), Warehousing( Except ports、 refined oil、 Storage of hazardous chemicals and hazardous waste), freight forwarding, Transport and loading services。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)