Clay minerals (i.e. clay) are widely distributed in rocks and soils around the world. The world's bentonite mineral resources are more than 1.3Gt, mainly distributed in the United States and Canada. Kaolin mineral reserves are about 1.6Gt, mainly distributed in China, the United States, Russia, Mexico, Spain and other countries. China is a country rich in kaolin resources, with excellent mineral quality and complete types of origin. The main producing areas are Suzhou, Jiangsu, Jun County, Hubei, Xuyong County, Sichuan and other places. Activated clay is mainly produced in the United States and Canada. Sourced from Baidu Encyclopedia.