1.chinese cassia tube 2.China origin 3.stocks for instant shipment The cassia we supply are gathered from the Xijiang River area of Guangdong and Guangxi Province in China,in which grows the best quality cassia for its humid temperate climate,even rainfall distribution and sufficient sunlight.Container Capacity: 20' container = 13.5MT, 40'container = 27MT chinese cassia tube,tube cassia