PenYao E. P-Pioneer in China environmental protection business. PenYao E.P. was founded in 1984. PenYao E.P.(stock code: 300664) was listed on China A-share market. The company has been committing to the environmental protection business and leading China's environmental protection industry since then. With more than 30 years continuous innovating and professional managing, PenYao E.P. has become an enterprise group which integrating R&D, equipment design&manufacturing, project contracting, waterworks investment, solid waste treatment. ecoariculture and operation management. PenYao E.P. has successfully completed more than 2000 projects, and honored as “National-level Enterprise Group", “National Key High-tech Enterprise 'and' Back-bane Enterprise of China’s Environmental Protection Industry”.