Mining, marketing, processing and comprehensive utilization of coal;R & D, production and sales of coal chemical products, chemical fertilizers and fine chemical products;Electricity production and supply;Coal railway transport (self-operated railway only);Mechanical processing;Manufacture and repair of special equipment, instruments and accessories for coal mines;Scientific research and design of coal, chemical industry and coal machinery;Coalfield geological exploration;Consulting services;Deep processing of coal and associated minerals;Mining engineering and industrial and civil buildings;Mechanical and electrical equipment installation;Mine (building) engineering design;Project supervision;Building materials sales;Manufacture and sale of gas products;Fire engineering, road transportation;Material storage;High-tech industry;Agroforestry.Acting as self-agent for import and export of all kinds of commodities and technologies, except the commodities and technologies restricted by the s

Mining, marketing, processing and comprehensive utilization of coal;R & D, production and sales of coal chemical products, chemical fertilizers and fine chemical products;Electricity production and supply;Coal railway transport (self-operated railway only);Mechanical processing;Manufacture and repair of special equipment, instruments and accessories for coal mines;Scientific research and design of coal, chemical industry and coal machinery;Coalfield geological exploration;Consulting services;Deep processing of coal and associated minerals;Mining engineering and industrial and civil buildings;Mechanical and electrical equipment installation;Mine (building) engineering design;Project supervision;Building materials sales;Manufacture and sale of gas products;Fire engineering, road transportation;Material storage;High-tech industry;Agroforestry.Acting as self-agent for import and export of all kinds of commodities and technologies, except the commodities and technologies restricted by the s

Petroleum and natural gas exploration, production, technology research and development, technical consulting services and mineral product marketing; basin and surrounding mineral resource exploration, production and mineral product marketing; self-operated import and export, foreign economic and technical cooperation; production of special equipment for oil drilling and perforation Equipment processing; storage tanks, pipeline physical cleaning, maintenance and technical services; oil and gas metering technology development and technical consulting services; downhole tool development, production, sales and maintenance; oil and gas field oil (gas) engineering planning and program design, oil production technology and equipment Tool production, sales and product (technical) testing; lubricants, auto parts, auto repairs, daily groceries, stationery, agricultural machinery and accessories, rubber products, sporting goods (except crossbows), health supplies, hardware products, building mate

Graphite selection; new energy science and technology research; graphite and carbon products manufacturing; import and export of goods.

New product development, technical consulting, design, manufacturing, construction, product after-sales installation and commissioning and general contracting of heavy machinery engineering and casting, forging and welding products such as nuclear power, petrochemical, metallurgy, forging, mining, electric power and military products; natural gas and other new energy equipment , Cold chain logistics and trade, technical consulting, design, manufacturing, construction, transportation and general contracting of logistics business; technical consulting and design of environmental protection equipment projects such as garbage disposal, desulfurization and denitrification, seawater desalination, comprehensive utilization of straw, and waste tire recycling , Manufacturing, construction, product after-sales installation and commissioning and general contracting; technical consulting, design, manufacturing, and product after-sales service for modern, intelligent, and large-scale agricultural m

Domestic commerce (except for approval); providing productive labor services for oil and natural gas exploitation (no business prohibited or restricted by the state); planting and breeding industry; house leasing; site leasing; import and export business; urban landscaping three-level; equipment Leasing; road general cargo transportation; surveying and mapping science and technology research services; house demolition services; land planning services; business management consulting services; sewage treatment and recycling; rural land consolidation services; mineral oil waste management services; information system integration services; Drilling waste treatment technical services; oilfield production guarantee technical services; road transportation of dangerous goods; environmental protection monitoring; land reclamation; soil pollution control and restoration services; sales: food, meat, eggs, poultry, aquatic products, vegetables, and fruits; Level 3 general contracting of constructi

Business scope including petroleum machinery equipment, metal structure, the electric heat tracing system, built-in heating device, the electric heating tube, skin heating device, the variable-frequency electric heating device, automatic control equipment, electrical facilities, electrical equipment, environmental equipment, automatic cleaning equipment, recycling equipment, small machinery, water treatment equipment research and development, production, processing, maintenance and sales;Production and sales of transformers, frequency converters, dirty oil and sewage recovery devices, negative pressure environmental protection recovery devices;Sales of chemical products (excluding dangerous chemicals), building materials, thermal insulation materials, plastic products, environmental protection products, electrical equipment, petroleum mechanical equipment and accessories, wires and cables, valves, steel, instruments and meters, underground tools, rubber products, hardware products, off

New material technology development, technical consulting, technical services, technology transfer, technology promotion, graphene electric heating film, graphene electric heating materials, graphene electric heating products, electric heating equipment, electric heating accessories, electric heating system research and development, design, Production, sales, installation and construction, consulting, design, construction, operation, and contracting services for electric heating projects, R&D, design, production, and sales of household appliances, electric heating products and Wujinjiaodian, smart wearable products, smart service products , Development, design, production and sales of smart household products, consulting, design, construction, operation and general contracting services for water treatment projects, R&D, design, production and sales of water treatment reagents, air purification materials and air purification products, graphite Production of ene fireproof insulation boar

New material technology promotion service; graphite and carbon product manufacturing; import and export of goods; road transportation of general goods.

Production, R&D, sales, and installation of thin-film solar cells and solar equipment, construction of solar photovoltaic power generation and lighting engineering, R&D, production and sales of metal semiconductor materials, power engineering construction, power transmission and transformation engineering construction, building curtain wall engineering design and construction, and cargo Foreign trade operations of import and export and technology import and export (for industrial and commercial registration, record information, and the catalogue after the pre-reform of industrial and commercial registration, please log in to the corporate information publicity system for inquiries)

Energy science and technology research services, special equipment, electrical equipment sales, solar power generation, power supply, electricity sales, water filtration, purification machinery and device sales, special equipment maintenance, household electrical appliances repair, household product repair, power system installation services, civil engineering Engineering construction, municipal engineering construction, municipal engineering design services, water conservancy generator electrical equipment engineering services, solar power generation, solar power generation engineering construction, operation and maintenance services.

New material technology promotion service. Manufacturing of anode materials for lithium-ion batteries, anode materials for lithium-ion batteries, graphite and carbon products, and nanomaterials. (Excluding hazardous chemicals) graphite product technology research service, metallurgical engineering technology research service, graphite product storage service, graphite selection.