Aohan Banner, Chifeng City, Inner Mongolia Autonomous Region flag, located in the eastern part of the Inner Mongolia Autonomous Region, southeast of Chifeng City, located in the eastern section of the Yanshan Mountains Nuruerhu Mountain northern foothills, the southern edge of the horqin sandland, belonging to the mesothermal semi-arid continental monsoon climate, adjacent to seven banners, counties, districts (cities), with a total area of 8,300 square kilometers. As of October 2022, Aohan Banner governs 2 streets, 11 towns, 4 townships, 1 soum, and another township-level unit. As of the end of 2020, Aohan Banner has a total population of 597,600 people. Aohan, is the name of the Mongolian tribe in the Ming Dynasty, the Chinese meaning of "boss", also do "king" of the solution. In the early Ming Dynasty, for the Daning Wei; Qing Chongde first year (1638), the Aohan Department for the Aohan Banner, belonging to the Zhao Uda Alliance; Republic of China twenty-six years (1937), the flag territory of the new Huixian, and the Aohan Banner coexist, the implementation of the partition of the Mongolian and Chinese; Republic of China thirty-eight years (1949) in March, the abolition of the flag and county joint form, reclaiming the Aohan Banner, belonging to the jurisdiction of the Jehol Province; January 1956, the Aohan Banner to the In January 1956, Aohan Banner was transferred to the Inner Mongolia Autonomous Region, under the Zhaowuda League; in 1969, Aohan Banner was transferred to Liaoning Province; in 1979, Aohan Banner was reintegrated into the Inner Mongolia Autonomous Region. The main attractions of Aohan Banner include Aohan Hot Spring City, Dahei Mountain Nature Reserve, Qingquan Valley Scenic Area, and Ringshui Jade Waterfall, etc. On December 28, 2022, Aohan Banner was selected as the "Seventh Batch of Demonstration Counties (Municipalities and Districts) for Basically Realizing the Whole Process of Mechanization of the Production of Major Crops in the Country." On December 30, 2022, Aohan Banner was selected as the "Four Good Cities" of 2022, and was awarded the "Four Best Cities of 2022". On December 30, 2022, Aohan Banner was selected as one of the "Four Good Rural Roads" National Demonstration Counties in 2022. In January 2023, Aohan Banner was selected as one of the "Fifth Batch of Counties (Districts) Achieving the Standard of Water-saving Social Construction". In 2022, Aohan Banner realized a gross domestic product (GDP) of 17.73 billion yuan, an increase of 0.9% year-on-year; fixed-asset investment of 4.18 billion yuan, a year-on-year decrease of 9.7%; general public budget revenue of 466 million yuan, an increase of 6%; disposable income per capita of urban and rural residents reached 35,562 yuan and 16,456 yuan respectively, an increase of 5.8% and 8.5% year-on-year.