About Us

Nanjing King-friend Biochemical Pharmaceutical Co., Ltd (hereinafter referred to as NKF) is located in Nanjing High-Tech Zone, Nanjing, China covering an area of about 40 mu (approximately 26,669 square meters). NKF is recognized as a High Tech Enterprise of Nanjing City, Jiangsu Province. Established in 1986 as an API producer, we focus on research, production and sales of raw material medicines of heparin sodium.
As of today, NKF owns two subsidiaries and two holding subsidiaries and its registered capital is 36 million dollars US. Our output of heparin sodium accounts for 20% of the world’s heparin sodium.

In early 2005, NKF undertook a government project to set up a “Mucopolysaccharides Biochemical Pharmaceutical Products Technical Research Center” focusing on the research and development of Enoxaparin, Dalteparin, Nadroparin Calcium and heparinoid. The research center has been inspected and accepted by the regulatory authorities in 2007. These R&D efforts have been subsequently commercialized, thus creating economic and social benefits.


In recent years, NKF has progressively built a first in class heparin sodium manufacturing operations, including a China-wide roll out of a traceable crude heparin supply chain, the formation of a multinational technical team, and the establishment of an internationally recognized management process.

Finished dosage manufacturing

The finished dosage production lines are built based on “Quality by Design” initiatives, which include two filling lines wholly integrated into isolated systems, one for vial filling and the other one for pre-filled syringe. The utilities and other supporting systems are all with advanced configuration and compliant with cGMP requirements.

The operation process of the finished dosage production lines is controlled by a computerized system, which effectively prevents human error. The vaporized hydrogen peroxide decontamination system, CIP/SIP and on-line environmental monitoring system provide a state-of-the-art aseptic production environment. Life cycle validation approach is taken from process research and development, product and technology transfer, and the commercial batch manufacturing, etc. which ensure the mature and long-term reliability of the manufacturing process.

Knowledgeable, experienced employees — coupled with strict adherence to regulatory requirements and a detailed documentation system — help ensure that all our products meet the most stringent quality, safety, and environmental standards globally, while maintaining productivity consistency. The result?  We are not only qualified to supply many of the world’s largest pharmaceutical companies, but we also maintain a successful quality record with global regulatory agencies.