Hunan Daoshi Medical Technology Co., Ltd. (formerly known as Changsha Dashing Biological Technology Co., Ltd.) was founded in 2012 and is headquartered in the Changsha National Biomedical Park, Hunan Province. The facility spans over 3,000 square meters, and a new R&D base covering 26,668 square meters is currently under construction. We are a high-tech enterprise engaged in the research, development, production, and sales of mid- to high-end pharmaceutical and agrochemical intermediates—especially in the field of phosgene chemistry. Our company boasts a top-tier domestic and international technical team and enjoys a strong reputation within the industry.


Jiangxi Daoshi Chemical Co., Ltd. is our branch located in the Fluorine Salt Chemical Industry Base of Huichang. It primarily focuses on the production of pharmaceutical intermediates and APIs derived from phosgene (triphosgene), chlorine downstream products, alkyl phenol derivatives, and fixed-bed catalytic hydrogenation derivatives. We also undertake R&D and production for other custom projects.


In addition, we operate several large-scale production bases in Hunan, Jiangxi, and other regions, offering comprehensive services that span the entire process—from research and pilot-scale production to full industrialization.


We are committed to pioneering original core technologies, prioritizing safety and environmental protection, and upholding the principles of credibility and quality first. With strong technical capabilities and professional service, we provide multi-channel, personalized, one-stop R&D and production solutions to foster long-term, mutually beneficial partnerships. Since our establishment, we have delivered high-quality products and services to clients in China, India, Japan, Korea, the United States, and various parts of Europe.


We sincerely welcome customers from home and abroad to explore cooperation and pursue common development.