Xiamen Zhongyuan Hongye Chemical Co., Ltd, formerly Fujian Zijin Weijing Co., was created in 2016 and is located at the Haicang biomedical industry park, Xiamen City, Fujian Province, China, governing two subsidiaries: Zhongyuan Hongye Pharmaceutical (Zhangzhou) Co., Ltd., Zhongyuan Hongye (Xiamen) Pharmaceutical Co., Ltd; Is a manufacturer of sulfonamide series products such as sulfathiazole and sulfathiazole sodium in the complete industrial chain and large capacity scale worldwide, mainly produces sulfonamide drug substances and intermediates, the products are sold abroad and China have obtained high recognition and trust from many international pharmaceutical companies, and has established long-term partnerships. The company has a whole set of management teams for small test, pilot test, commercial scale production and quality control, product registration, has a more than 400 M2 QA / QC center with various international advanced analytical and experimental equipment such as IR, UV, HPLC, GC, and a provincial enterprise technology center and a partnership with several renowned universities in the country. A well-established quality management system has been established, and it has been preliminarily passed the certification review of GMP, among which multiple products were obtained with the remark list of GMP certificate documents from Xiamen Municipal Drug Administration and Fujian Provincial Department of agriculture.