The cassia growing area in Vietnam is more than 170,000 hectares. According to the World Spice Association, Vietnam ranks third in the world in terms of cassia production. Vietnam's cassia bark reserves are estimated at about 900,000 - 1,200,000 tons, with an average yield of 70,000 - 80,000 tons/per year. From August 1, 2020, Van Yen cassia, Yen Bai province is one of 39 products of Vietnam protected by the EU when implementing the EU-Vietnam Free Trade Agreement (EVFTA)