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Guizhou Daoshang Chengyi Biotechnology Co., Ltd., formerly known as Zunyi Sprui Technology Co., Ltd., was founded in 2006. It is a high-tech enterprise engaged in the research and development, production, sales, and provision of technical services for rubber/plastic additives, pharmaceutical intermediates, and other fine chemical products; The company has strong independent research and development capabilities, while also conducting cutting-edge product research and development with higher education institutions and research institutions. The current leading products are SR series and SP series: SR008, SR009；SP100，SP101，SP102； It is the only enterprise in China with a production scale, producing up to 1000 tons of fine chemicals. SR series is mainly used in the rubber tire industry, and it is a new type of functional modification additive. The SP example mainly applies to the resin and plastic industry as a type of modification, curing, and crosslinking agent.

The company is willing to provide customers with high-quality and efficient services based on "integrity, quality, and innovation".