Engage in import and export of goods and technology; Sulfur without storage facilities、 sulfuric acid; Chemical raw materials and products( Dangerous chemicals must be operated with a license)、 feed、 Petroleum products、 Mineral Products、 Metal materials and products、 Textile raw materials and products、 edible agricultural products、 jewelry、 Gold and silver jewelry、 Craft gifts( Except ivory and its products)、 Mechanical equipment、 Sales of environmental protection equipment, Fertilizer business, Coal Operations, PR event planning, Marketing Planning, Business Information Consulting, Conference Services, Exhibition services, jewelry、 Gold and silver jewelry、 Design of craft gifts, Engaged in optoelectronic technology、 Power Technology、 Technology development in the field of new energy technology、 Technical Consulting、 Technical Services、 Technology Transfer。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)