Sichuan Neijiang Huixin Pharmaceutical Co., Ltd. is one of the earliest pharmaceutical enterprises in Neijiang to obtain GMP certification. Focusing on the field of vitamin D series active pharmaceutical ingredients (APIs), the company has accumulated 4 national invention patents and 13 utility model patents, boasting solid R&D and technical reserves.

It serves as a core primary supplier to world-leading pharmaceutical giants including Merck, BASF, DSM, and LEO Pharma, having passed supplier qualification audits conducted by all these multinational pharmaceutical corporations. Its production and sales volume of Vitamin D2 APIs ranks first across the globe, granting it prominent influence within the industry.

Leveraging its geographical advantages and mature production system, the company mainly offers diversified products such as VD2/VD3 microencapsulated powder, vitamin oil, and powder. These products are widely applied in pharmaceutical preparations, dietary supplements, food additives, and other fields, and are sold to destinations worldwide.