HEEE is the front-runner of biogas and biomethane industry in China. As the EPC contractor, HEEE has built an important agricultural CDM project, an agricultural biogas power generation project and a mixed raw materials biomethane project in China. Founded in 1992, HEEE is a leading company in China specializing in biogas and biomethane engineering, using anaerobic technologies to treat high solid content organic waste, the business scope include research and development, treatment process design, equipment supply and installation, commissioning and general contracting.