The registration address of beijing ring energy technology ltd. Is located in room a-4766, building no. 3 of the zilong economic development area, zilong road, located in the gate cane district of beijing. The registration authority is the market supervision authority of the zhong an road, located in beijing city. The legal entity is represented by han u-jin and operates on the basis of technical development, extension, services, transfer, advice; the sale of solar water heaters, appliances, water treatment equipment, electrical equipment, electronics, hardware, daily supplies, air conditioning refrigeration equipment, communications equipment, construction materials; the maintenance of household appliances; the installation of air conditioning refrigeration equipment; the sale, lease of machinery equipment; the import and export of goods; the commissioning of the processing of solar water heaters and accessories; and professional contracting. (an enterprise shall, in accordance with the law, freely choose to operate its own projects and carry out its activities; an approved project shall, in accordance with the law, operate its activities in accordance with the approved content, subject to the approval of the relevant sector; and it shall not engage in activities in which the industrial policy of the municipality prohibits or restricts the operation of projects of its kind