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.
Ningming County is located in the southwest border of Guangxi, bordering Luping County, Gaolu County, Tingli County, Lang Shan Province, Vietnam, and Pingliao County, Guangning Province. The county covers an area of 3705 square kilometers and has jurisdiction over 7 towns, 6 townships, 3 overseas Chinese farms, 162 administrative villages (communities) and 1086 natural villages, with a total population of 440000. Zhuang, Han, Yao and other ethnic groups live together, of which the Zhuang population accounts for 82.9%. There are Aidian national first-class ports and Aidian, Bandang, Beishan three border exchange points, the border line is 212 kilometers long, is the longest land border county in Guangxi. Ningming is rich in resources and excellent ecology, with an area of 1.25 million mu of arable land, an annual output of 100000 tons of grain and 3 million tons of sugarcane, a total forest area of 3.35 million mu and a forest coverage rate of 60.4%. It is a "national advanced county for grain production" and "national sucrose production base county".