Weiyi is a high-tech enterprise specializing in the R & D, production and sales of carboxymethyl cellulose sodium salt products (CMC) and polyanionic cellulose products (PAC). It has a history of more than 20 years. Weiyi covers an area of 64000 square meters, with a phase I project investment of 200 million yuan, which has been put into operation by stages in November 2012. There are three production workshops in phase I, two production lines in each workshop, and a total of six independent and closed production lines. DCS automatic control system is enabled, which is closely combined with traditional production process to realize full automation of production, GMP packaging room and stable product quality. It is equipped with professional laboratory equipment to detect various physical and chemical indexes, microorganisms and heavy metal contents of CMC. It has a perfect quality management system and strict control standards to effectively ensure product quality and risk control. Weiyi phase II project will invest 230 million yuan to produce 30000 tons of sodium carboxymethyl cellulose and 5000 tons of compound food additives per year. At present, the project has been completed and put into operation in April 2021. The company is committed to the research and production of food additive grade and special industrial grade sodium carboxymethyl cellulose products. It has a number of technological innovation and invention patents. It has a variety of products and independently develops a variety of products to meet the needs of different application fields. At present, the variety is 200 +. Customer service tenet: intimate, sincere, careful, assured, positive response, and provide customers with high-quality service. The company has passed ISO9001, ISO22000, iatf16949, kosher, halal, IPMS and other system certification, obtained BRC certificate and GMP certification, and passed SEDEX social responsibility factory inspection.