Licensed Projects: Construction project construction, Power transmission、 powered by、 Installation of receiving power facilities、 Maintenance and testing, Installation, modification and repair of special equipment, Construction labor subcontracting, Road freight transport( Does not contain dangerous goods), Catering Services, Accommodation Services, Beverage production。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.) General Projects: Machinery and equipment rental, Landscaping project construction, Sales of special equipment for oil drilling, Oil and gas technical services, Computer system services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)