Yunyang Tung Oil

Yunyang Tung Oil

Yunyang Tung Oil is a geographical indication certification trademark.

　　Yunyang County has a long tradition of growing tung trees and enjoys favorable climatic conditions. The region features a mid-subtropical humid monsoon climate with mild temperatures, adequate sunlight, abundant rainfall, distinct seasons, synchronized rain and heat, and a long frost-free period. The soil is primarily composed of purple soil and yellow earth. Yunyang tung oil is an industrial plant oil produced by mechanically pressing and refining the harvested tung fruit. Testing has shown that Yunyang tung oil boasts unique and superior qualities such as a glossy finish, high iodine value, low acid value, minimal impurities, fast drying, low specific gravity, strong adhesion, acid and alkali resistance, and corrosion protection.

　　Chongqing’s Yunyang County is known as the “Home of Tung Trees in China.” Since the 1950s, Yunyang has been a national tung tree production base and one of only two national tung oil production demonstration counties designated by the National Forestry Administration. In 1960 and 1997, the National Tung Oil Production Field Meeting and the National Tung Oil Academic Symposium were held in Yunyang respectively (it is extremely rare in Yunyang’s history for a single forest product to have hosted two national conferences). In 2004, the National Forestry Administration officially named Yunyang the “Home of Tung Trees in China.”

　　“Yunyang Tung Oil” is the pride of Yunyang County. It has long been a major advantage and a widely renowned resource both in China and abroad, celebrated for its large output and superior quality. Yunyang’s tung oil production ranks among the top in the nation, and Yunyang tung oil serves as the global standard for tung oil testing, qualifying it as an export exempt from inspection. It has received multiple commendations from China’s Ministry of Foreign Trade, Ministry of Commerce, and Ministry of Forestry.