Licensed Projects: Gas Operation, Gas vehicle refueling business, Gas burner installation、 repair, Road freight transport( Does not contain dangerous goods), Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Construction Engineering Design。( 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: Heat production and supply, Terminal metering equipment sales, Building materials sales, Sales of non-electrical household appliances, gas、 Liquid separation and purification equipment sales, Instrument sales, Instrument repair, Hardware product retail, Special equipment sales, Residents' daily life services, Land use rights lease, Housing rental, Non-residential real estate rentals, Machinery and equipment rental, Small and micro passenger car rental services, Construction machinery and equipment rental,Computer and communication equipment rental, Transportation equipment rental services, Office equipment rental services, Warehousing equipment rental services, counter、 stall rental, Special equipment rental, Motor vehicle repair and maintenance, Land pipeline transportation, Security Consulting Services, Engineering Management 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)