Wuyishan Beiyanyan Tea Refining Factory was established in 1997 and is located in Tianxin Yan Tea Village. Beiyan Tea Garden is listed as a "green food base" by the Chinese tea system. The rock tea produced is from Wuyi Zhengyan Tea, with an annual output of more than 2,000 dan (120,000 kg). Wu Zongyan, the head of the company, is one of the inheritors of the production skills of Wuyi Rock Tea (Dahongpao) in the list of intangible cultural heritage.

As a "specially marked enterprise for the use of Wuyi Rock Tea Regional Products" in Wuyishan City, Fujian Province, Beiyanyan Tea Refining Factory has always insisted on winning quality as the development policy, and each process has been passed. Strictly check and carry out strict and scientific management in the tea production process. Wu Zongyan believes that Wuyi Rock Tea should still adhere to traditional production skills. Those so-called improvements will more or less destroy the quality of tea. The traditional production of Wuyi Rock Tea has been practiced by countless tea people and has also been tested by practice. It is the most reflective of the true fragrance of Wuyi Rock Tea and Rock Bone Flowers.

The series of products carefully launched by Beiyanyan Tea Refining Factory in Wuyishan City, Fujian Province - Dahongpao, Wuyi cinnamon, old pine daffodils, iron arhats, famous pine strange species, etc. While ensuring the quality, it is equipped with exquisite packaging, greatly improving The noble characteristics of Wuyi Rock Tea have greatly promoted the tea tasting style.