Non-coal mine mineral resource mining; construction steel bar product production; coal mining; special equipment manufacturing; construction engineering design; construction engineering survey; construction engineering supervision; construction engineering construction; installation, repair, and testing of power transmission, power supply, and power receiving facilities; inspection and testing services; road cargo transportation (online freight); road cargo transportation (excluding dangerous goods); heat production and supply; power generation business, power transmission business, power supply (distribution) business; power supply business; tap water production and supply; tourism business. General items: mineral processing; steel and iron smelting; steel rolling and processing; metal material manufacturing; metal material sales; rare earth and rare metal smelting; rare earth functional material sales; new metal functional material sales; coal washing and processing; coal and coal product sales; basic chemical raw material manufacturing (excluding hazardous chemicals and other licensed chemicals); chemical product sales (excluding licensed chemical products); lime and gypsum sales; general equipment manufacturing (excluding special equipment manufacturing); general parts manufacturing; special equipment repair; general equipment repair; general mechanical equipment installation services; foreign project contracting; undertaking the construction business of the parent company; engineering cost consulting services; mechanical equipment R&D; industrial robot installation and repair; mechanical equipment leasing; road cargo transportation for vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); procurement agency services; domestic trade agency; import and export of goods; general cargo warehousing services (excluding hazardous chemicals and other items requiring licensing); railway transportation auxiliary activities; emerging energy technology R&D; carbon emission reduction, carbon conversion, carbon capture, and carbon sequestration technology R&D; contract energy management; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; software development; computer system services; human resources services (excluding occupational intermediary and labor dispatch services); non-residential real estate leasing; land use rights leasing; organizing cultural and artistic exchange activities; leisure and sightseeing activities; travel agency service point travel solicitation and consulting services; investment activities with自有 funds.