Dongying HUICHEN Petroleum Technology Development Co., Ltd.

International Industry Category: Scientific research and technical services

International Industry Major Class: Professional technical services

International Industry Middle Class: Geological Survey

International Industry Sub Class: Geological exploration technical services

General Projects： Oil and gas technical services； Engineering and technical services（ Planning Management、 Survey、 design、 Except supervision）； Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion； Mechanical equipment research and development； Metal product research and development；Valve and plug development； New material technology research and development； New material technology promotion service； Marine engineering equipment research and development； Machinery and equipment sales； Sales of geological exploration and seismic equipment； Sales of special equipment for oil drilling； Sales of non-metallic minerals and products； Landscaping project construction； Horticultural product sales； Municipal facilities management； Urban and rural appearance management；Sales of electrical instruments and meters； Sales of new metal functional materials； Building materials sales； Rubber product sales；Chemical product sales（ Does not contain permitted chemical products）； Fertilizer sales； Tree planting and management； Plastic product sales； Hardware product research and development； Hardware wholesale； Electronics sales； Sales of packaging materials and products； Tire sales； Metal product sales； Metal material sales； Sales of metal wire ropes and their products； Wholesale of computer hardware, software and auxiliary equipment； Office supplies sales； Enterprise Management Consulting； Computer system services； Software Development； Artificial intelligence basic software development； Software Sales； General mechanical equipment installation services； General equipment repair； Special equipment repair； Sales of traffic and public management signs； Sales of labor protection products； Smart UAV sales；Labor Services（ Excluding labor dispatch）； Advertising Production； Advertising Design、 acting； Sales of new catalytic materials and additives； Import and export of goods。（ Except for projects that require approval according to law， Carry out business activities independently in accordance with the law with a business license） Licensed Projects： Building intelligent system design； Construction labor subcontracting； Construction project construction； Construction Engineering Design； Residential interior decoration。（ 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.）

Chinese Industry Category: Petroleum and Petrochemical

Chinese Industry Major Class: Oil and gas extraction

Chinese Industry Middle Class: Oil and gas production support activities

Chinese Industry Sub Class: Oilfield Services