Denox Environmental & Technology Holdings Limited, an investment holding company, designs, develops, manufactures, and sells DeNOx catalysts in the People's Republic of China and internationally. It offers plate-type DeNOx catalysts, honey-comb DeNOx catalysts, and DeNOx catalysts for vehicles. The company sells its plate-type DeNOx catalysts to coal-fired power plants; engineering, procurement, and construction services providers; and boiler manufacturers. It also develops catalysts for diesel-powered vehicles and natural gas-powered vehicles. The company was founded in 2010 and is headquartered in Beijing, the People's Republic of China.