A staff member maneuvers coal-carrying trains at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region, Nov. 23, 2021. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Zhu Wenzhe/Xinhua]

A staff member checks a train carriage at the Baotou west station in north China's Inner Mongolia Autonomous Region, Nov. 23, 2021. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Zhu Wenzhe/Xinhua]

Aerial photo taken on Nov. 23, 2021 shows a train being loaded at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Li Zhipeng/Xinhua]

Staff members spread frost-proof powder into a train carriage before loading at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region, Nov. 23, 2021. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Li Zhipeng/Xinhua]

Aerial photo taken on Nov. 23, 2021 shows a view of the Baotou west station, where up to 30,000 tonnes of coal is loaded to trains every day, in north China's Inner Mongolia Autonomous Region. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Zhu Wenzhe/Xinhua]

Aerial photo taken on Nov. 23, 2021 shows a train being loaded at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Li Zhipeng/Xinhua]

Aerial photo taken on Nov. 23, 2021 shows a train being loaded at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Li Zhipeng/Xinhua]

A staff member monitors the operation of loading gears at a loading station of a coal mine in Erdos, north China's Inner Mongolia Autonomous Region, Nov. 23, 2021. North China's Inner Mongolia Autonomous Region has made enormous efforts to ensure the supply of coal across the country, as coal consumption saw a surge in early winter. China Railway Hohhot Group Co., Ltd. has also been mobilized in various ways to ensure the transportation of coal for power generation and heating this winter and next spring. [Photo by Li Zhipeng/Xinhua]