Engage in import and export of goods and technology, Mechanical and electrical equipment maintenance( Except special), Mechanical and electrical equipment、 Technology development in the field of educational technology、 Technology Transfer、 Technical Consulting、 Technical Services, Business Information Consulting, Marketing Planning, Industrial Investment, Investment Consulting, Investment Management, Enterprise Management Consulting, Market information consultation and investigation( Not allowed to engage in social surveys、 Social Research、 public opinion polls、 opinion polls), Coal Operations, Car Sales; Sales of machinery and equipment、 Mechanical and electrical equipment、 Knitted textiles、 computer、 Software and auxiliary equipment( Except for computer system security products)、 Electronics、 Building Materials、 Metal materials、 coke、 cosmetic、 jewelry、 Clothing and Accessories、 Home appliances、 Car accessories、 office supplies、 Daily necessities、 Hardware and Electrical、 Craft gifts、 accessories、 Instruments、 paper products、 Shoes and hats、 Rubber and plastic products、 fuel oil(Removal of hazardous chemicals), Chemical product wholesale(Removal of hazardous chemicals、 Monitoring chemicals、 Fireworks、 Civilian explosives、 Precursor chemicals)。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)