Changzhou Kewei Fine Chemical Factory (KWCHEM) has been engaged in the manufacture of water treatment chemicals, steroids, hormones and intermediates for over 20 years. We specialize in corrosion and scale inhibitors, biocide-algaecides, defoamers and preformed film, which are used in industrial water-cooling circulation systems. Our organic phosphonate, polycarboxyate series is used in steel making plants, power plants, chemical plants, textile printing and dyeing plants, oil fields and more.

Our production capacity is 20,000 metric tons annually. We have also begun to manufacture reverse osmosis products for seawater last year. Another successful field of endeavor is steroid hormones and our testosterone series (including its intermediates and derivatives) has been much lauded by our clients. We can also research and customize the above products to specific requirements.