Tianjin Kaifeng Chemical Co., Ltd. (Tianjin Donghai Chemical Factory) was established at the early of 1988 with an investment over RMB 80 millions. Years later, Kaifeng has become a Chinese specialized manufacturer of Calcium Hypochlorite for both sodium process and calcium process, and Bleaching Liquid. These products are enjoying a nice reputation for their advanced processing technology and superior quality.Located at the south end of XiQing District in Tianjin city, with a distance of 200m from national highway 205 and 40KM from Tianjin Port, Tianjin Kaifeng Chemical Co., Ltd. (Tianjin Donghai Chemical Factory) enjoys a geographical advantage in goods-transportation and circulation. Sales both domestically and in overseas market like America, Africa, Europe and South-east Asian areas. Tianjin Kaifeng Chemical Co., Ltd. (Tianjin Donghai Chemical Factory) has always been paying close attention to product quality and end-user?s demand. We now are the export manufacturing base in the Northeast and North of China for Calcium Hypochlorite.