Beijing Enterprises Holdings Limited, through its subsidiaries, engages in the gas, water, environmental, brewery, and other businesses in Mainland China, Germany, and internationally. It operates through four segments: Gas Operation, Water Operation, Environmental Operation, and Brewery Operation. The Gas operations segment encompasses natural gas storage, transmission, and sales; urban gas pipeline construction and management; gas for vehicles and vessels and refuelling stations; distributed energy; liquefied petroleum gas; new energy-related technology and product development; natural gas trade; and value-added services, with a full industrial chain presence in upstream, midstream, and downstream markets. The Water Operations segment focuses on water recycling and water-related environmental protection, integrating industrial investment, design, construction, operation, technical services, and capital operation, and operates a network of water and sewage treatment. The Environmental Operations segment covers household waste incineration and power generation, hazardous and medical waste treatment, sludge disposal, and garbage collection and transportation. The Brewery operation segment produces and sells beer and beverage products. The company was incorporated in 1997 and is based in Wan Chai, Hong Kong.