What is the annual output value of bentonite?

In recent years, China's Bentonite industry has developed rapidly. In 2010, the annual output of bentonite in China was about 3.5 million tons, which has increased to nearly 6 million tons by 2018, with an average annual growth rate of about 9%. At the same time, the application fields and directions of products have gradually developed from traditional metallurgy, casting, drilling mud and other industries to environmental materials, food and medicine, new agricultural and livestock materials, new building materials and other fields. As a mineral functional material, bentonite has become an important supporting material for the development of modern high-tech industry in China.