The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Fengtai County, which belongs to Huainan City, Anhui Province, is located in the middle reaches of Huaihe River, the southern edge of Huaibei Plain, Mengcheng County of Bozhou City in the north, Lixin County of Bozhou City in the northwest, Yingshang County of Fuyang City in the west, Shou County of Huainan City in the south and Shou County of Huainan City in the east. The county is oblique to the southeast and northwest, with a length of 50 kilometers from north to south, 42 kilometers from east to west, and an area of 1100 square kilometers. Fengtai County, with coal and electricity as the pillar industry, is the largest county in deep well coal mining in China. It has been awarded the honorary titles such as the advanced county of national scientific and technological progress, the advanced county of national grain production, the advanced county of national water conservancy, the hometown of Chinese folk art, the hometown of Chinese folk song and dance, the advanced county of national legal publicity and education, the national garden county, the national civilized county and so on.