Denox Environmental & Technology Holdings Limited, an investment holding company, designs, develops, manufactures, and sells DeNOx catalysts in the People's Republic of China, Southeast Asia, and Europe. It offers plate-type DeNOx catalysts, honey-comb DeNOx catalysts, and DeNOx catalysts for vehicles. The company sells its plate-type and honey-comb DeNOx catalysts to coal-fired power plants; engineering, procurement, and c