Zhejiang Hongyu New Materials Co.,Ltd is established in 2008.As China"s high-tech newly modified organic bentonite manufacturers, the annual output of the nanoscale bentonite is 20,000 tons, refined bentonite 15,000 tons, activated clay 5,000 tons and quarternary ammonium salt 5,000 tons by using the most advanced producing technology and automated producing control system.