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.
Maanshan, referred to as "Ma", is a prefecture-level city in Anhui Province, located in the eastern part of Anhui Province and the confluence area of Jiangsu and Anhui Province. it is a member city of Hefei Metropolitan area, Nanjing Metropolitan area, member cities of Yangtze River Delta Urban agglomeration, cities along Yangtze River Economic Belt and Wanjiang City Belt to undertake industrial transfer demonstration area; it has jurisdiction over 3 districts and 3 counties with a total area of 4049 square kilometers. In 2018, the resident population was 2.337 million. Ma'anshan, which straddles the Yangtze River and borders Nanjing, has been known as "Jinling barrier and Jiankang lock key" since ancient times. As early as the six dynasties, many famous princes and virtuous scholars lingered in Maanshan, leaving many monuments and cultural relics. It has successively won the national civilized cities, national public cultural service standardization construction pilot cities, national science and technology pilot cities, southern Anhui international tourism culture demonstration zone, and the first batch of countries.