Grandblue Environment Co., Ltd. engages in the solid waste treatment, energy, water supply, and drainage businesses in China. The company provides solid waste treatment; pipeline natural gas, LNG trading, liquefied petroleum gas, hydrogen energy, and other multi-energy supply services; and water intake, water production, and water transmission to end-user services. It also operates water purification plants; maintains rainwater and sewage pipe networks; manages drainage users, pumping stations, and river discharge. In addition, the company engages in environmental investment; asset management; gas supply; sewage processing; tap-water supply; technical service; solid waste disposal; sale of merchandise; water technology; solid waste engineering; hazardous waste treatment; technology promotion and application; sanitation services; cargo transportation; equipment manufacturing; sewage processing; and construction project construction, as well as solid waste, wastewater, water supply, and energy investment. The company was formerly known as Nanhai Development Co. Ltd. and changed its name to Grandblue Environment Co., Ltd. in December 2013. The company was founded in 1992 and is based in Foshan, China.