Zhejiang Jianfeng Yien Biotechnology

Zhejiang Jianfeng Yien Biotechnology is a Chinese biotechnology company and a subsidiary of the Zhejiang Jianfeng Group. The company specializes in the research, development, and industrialization of biological fermentation products, with a primary focus on functional enzymes and probiotics. Its flagship product is Nattokinase, a potent fibrinolytic enzyme used in cardiovascular health supplements. Jianfeng Yien operates advanced manufacturing facilities in Jinhua, Zhejiang, adhering to high-quality standards for the production of health-oriented biological ingredients. The company leverages the resources of its parent conglomerate to integrate R&D with large-scale commercial production. Their product portfolio also includes Vitamin K2 and various probiotic strains targeted at digestive and metabolic health.