Licensed Projects: Import and export of goods, Technology import and export( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: oil refining、 Manufacturing of special equipment for chemical production, Electronic special equipment manufacturing, Mechanical and electrical equipment manufacturing, oil refining、 Sales of special equipment for chemical production, Sales of special electronic equipment, Electrical machinery and equipment sales, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)