Nr. Zhang Huichun, Doctor of Engineering from Wuhan University (formerly Wuhan University of Water Resources and Electric Power), is the chairman and founder of Greentech Environment Co., LTD.

Vice President of the All-China Environment Chamber of Commerce, member of the Smart Water Professional Committee of China Urban Water Supply and Drainage Association, member of the 10th
Council of China Water Resources Society, Vice Chairman of the Standardization Working Group of "Industrial Unconventional Water Utilization Industry" of the Ministry of Industry and Information Technology.

From July 1987 to March 1994, he successively served as engineer and Director of the Water Environment
Office and Director of the Mathematical Model Office of Beijing Institute of Water Resources Planning and Design; From February 1995 to June 2004, he served as Deputy Representative and Chief Representative of DHV Beijing Representative Office. From January 2001 to June 2004, he also served as General Manager of DHV Beijing Environmental Engineering Co., LTD. He has been the founder and Chairman of Greentech Environment Co., LTD., since July 2004. On May 8, 2020, Greentech Environment Co., Ltd.
was officially listed on the Science Innovation Board of Shanghai Stock Exchange (stock abbreviation: Greentech Environment, stock code: 688466).