Sichuan Tongzhou Chemical Technology Co. Ltd, located at Science and Technology City of China(Mianyang), has an 18 years of specialized experience in research, production, and marketing of concrete admixtures. The manufacturing base of Tongzhou is more than 20000 square meters. At present, Tongzhou is the member of the Concrete Admixture Branch of Chinese Building Materials Association. The concrete admixtures of the company with "Tongzhou" and "Sansan" brands, have been named as "Green building materials in Chinese building material markets", and "National Top Ten concrete admixture products of famous brands", etc.

Tongzhou is a leading concrete admixture company in Chinese construction industry, with an annual production capability of 100000 tons of concrete admixtures, including polycarboxlate, naphthalene, aliphatic, and amino sufonate superplasticizer, as well as expansion agents. Besides, polymer fibers, such as polypropene fiber, are also produced for concrete at Tongzhou. The products of Tongzhou are widely accepted and praised by customers, tunnels, and other important constructions. Most importantly, long-term and good partnerships have been built between Tongzhou and Tongzhou's customers.