Zaozhuang Tongtai Weirun Chemical Co.,Ltd. covers an area of 100 acres. Our company dedicates to the research, development, manufacturing and marketing of Calcium Propionate, Propionic acid, sodium salt, Benzoic acid, Benzoic acid, and sodium salt. As the largest manufacture in Shandong Province in the field of food pharmaceutical anti-corrosion and anti - mildew field, the annual output of Calcium Propionate reaches 10,000t, Sodium Propionate is about 5,000t, Benzoic acid is about 15,000t, and Sodium Benzoate is about 12,000t. Our products all up to the national inspection standard, and are in the best-selling domestic and foreign. We have top-grade team, top-grade equipments and top-grade quality. Our wish is to create high-quality food preservatives and ensure the freshness and nutrition. Making the contribution to society, we are striving to become the leading enterprise within the industry.