Tongxiang Longsing Chemical Co., Ltd., subordinate to Tongxiang Longxiang Group, is a joint-stock enterprise specialized in the production and sales of pharm-chemicals, bio-chemicals and food & feed additives. The company is located in Tongxiang, which is a picturesque city in the south of the lower reaches of the Changjiang River. Only 120km from the international metropolis Shanghai, and 55km from the provincial capital Hanghzhou, Tongxiang enjoys a good location and convenient transportation.

Armed with advanced production equipments and technologies, we control each production procedure strictly according to the ISO9001: 2000 Quality Management System. Upholding the tenet of Strict Production Management, Reliable Product Quality and Honest Sales Services, we have established a sound Q.C. system to ensure the high quality of products, and our R & D Center provides strong technical support for further innovation.

Our leading products are Vitamin D3 series. With self-support imp. & exp. power, we will provide customers with first-class products and first-class after-sale services. And we sincerely hope to cooperate with our new and existing customers for a bright tomorrow.