Founded in 1999, Zhenghe Chemical Chaoyang Co., Ltd specializes in the development and production of Cobalt Salt Adhesion Promoters. We are among the top manufacturers and leading the development of this industry in China. Our annual production capacity is 2000 tons. Zhenghe Chemical has obtained two National Patents: New Technology for Wet Production and Preparation and Producing Method of Compound Cobalt Salt Adhesion Promoters.