Zhejiang Tiefengtang Biotechnology Co., Ltd.

Tiefengtang (铁枫堂) is a Dendrobium officinale producer in Zhejiang province, operating through Zhejiang Tiefengtang Health Technology Co., Ltd. and related entities. Its base is a Dendrobium officinale science and technology park at Yandangshan in Dajing township, Yueqing, in the Wenzhou prefecture. The brand carries the Chinese government's China Time-Honored Brand (中华老字号) designation, which it states is the only such listing in the Dendrobium category.

The company covers the crop's full chain, from variety selection and breeding through cultivation, processing, research and sales, and runs agritourism at the park. It supplies Dendrobium officinale in processed forms, including pressed fresh juice, extracts and powders. Work on characterising the plant and on deeper processing is carried out with the Zhejiang Academy of Agricultural Sciences and several universities, and the company established a Dendrobium officinale research institute at the Yandangshan park.

Processing is automated, with robotic handling across the production line and an MS-based plant management system.