CHMC has actively participated in environmental protection projects, taking on a large number of environmental protection, environmental control and industrial pollution control projects. CHMC took on the responsibility of supplying equipment and services to the Zhengzhou Sewage Treatment Works, the Mudanjiang Sewage Treatment Works, the Beijing Wujiacun Sewage Treatment Works, the Xinjiang Yamalikeshan Sewage Treatment Works and the Nanjing Jiangxinzhou Sewage Treatment Works, as well as various dust removal equipment and supporting facilities for high-polluting industrial enterprises.