Beijing Datong Environmental Co. Ltd. established at 2012. At present, the enterprise group has three large-scale production base with a total area of 150,000 square meters. 1, Dalian production base is located at Dalian city Liaoning Provence.The base concentrates on produce active lime. It has an active lime rotary kiln with an annual output of 120,000tons active lime for metallurgical use. 2, Yi county production base is located at Yi county Hebei Provence. The base has five powder processing production line with an annual output of 150,000 tons calcium oxide CaO and 100,000 tons calcium hydroxide Ca(OH)2. 3, Laiyuan county production base is located at Laiyuan county Hebei Provence. The base have four mine tailing disposal lines. And the annually tailing waste rock processing capability is 4,000,000 tons. The group has 120 employee, including a 15 members technical team. It has long-term cooperation with lots of high education institutions such as Tsinghua University, Beijing University of Chemical Technology, China University of Geosciences and Building Materials College. In 2017, the turnover was 320 million CNY, including total exports 128 million CNY. The main export areas are North America, Australia, the Middle East and Southeast Asia. And the group also has two long term cooperation ports Tianjin and Changxingdao.