CDT Environmental Technology Investment Holdings Limited designs, develops, manufactures, sells, installs, operates, and maintains sewage treatment systems in China. It sells complete sewage treatment systems; constructs rural sewage treatment plants; installs systems; and provides on-going operation and maintenance services for systems and plants in China for municipalities and enterprise clients. The company provides on-site treatment services with its mobile and fixed septic tank treatment systems. CDT Environmental Technology Investment Holdings Limited was incorporated in 2016 and is based in Shenzhen, China.