All right. Jin Feng coal mine in Ningxia is good. Jinfeng Mine attaches great importance to the construction of green mines, and has also set up a special leading group to be responsible for implementation, formulate scientific and reasonable control measures, comprehensively carry out the construction of green mines, and complete the planning and construction objectives on time. In the treatment of mine solid waste-coal gangue, Jinfeng Mine has always attached equal importance to pollution control and ecological restoration, and invested a lot of money in loess covering, slope cutting and vegetation planting, which effectively improved the environmental sanitation and air quality around the mining area.