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.
Lianyuan City, which belongs to Loudi City, Hunan Province, is located in the central part of Hunan Province, the northern margin of Hengshao Basin, the upper reaches of Lianshui and Sunshui. Lianyuan City, with a total area of 1830 square kilometers, has jurisdiction over 19 township offices and 1 high-tech zone, with a resident population of 983000 by the end of 2017. Lianyuan is located in the geometric center of Hunan and is an important transportation hub in central Hunan. Lou-Xin Expressway, Changshaolou Expressway, Erguang Expressway and Shanghai-Kunming High-speed Railway run through the whole territory. Lianyuan City is rich in natural resources, known as "sea of coal", "hometown of building materials" and "hometown of non-ferrous metals". It is Hunan energy and raw material base, 100 key coal-producing counties and cities, national well-known coal machinery production base, and national grain-producing counties. In 2018, Lianyuan City achieved a GDP of 29.06 billion yuan.