Chinese gallnut

Last updated 2026-11-13 — Chinese gallnut: Also known as "hundred-insect barn," Chinese gallnut is an important industrial raw material. The main production area is Zhushan County, which is also one of the largest producers of Chinese gallnut in Hubei Province and across China. The gallnuts from this region are large in size and high in tannic acid content, ranking among the best varieties nationwide. In 1985, with assistance from the Nanjing Institute of Chemical Industry Research under the Chinese Academy of Forestry in Nanjing and the Yunnan Shellac Research Institute, Zhushan County built a forest product chemical factory primarily focused on processing Chinese gallnut. This facility annually produces five types of products, including industrial tannic acid, industrial gallic acid, and TMP, all featuring leading domestic technology and equipment. Since its launch in 1987, the products have been widely sold across China and exported to countries such as Japan, the United States, and France.