Shanghai, referred to as "Shanghai" or "Shen", is the birthplace of the Communist Party of China, the People's Republic of China municipality, the National Center City, the mega-city, the international economy, finance, trade, shipping, Science and Technology Innovation Center and integrated Transportation hub, the first open coastal cities. Located at the mouth of the Yangtze River, Shanghai is the leading city in the Yangtze River Economic Belt and the core city of G60 corridor.
Across the East China Sea and Japan's Kyushu Island, south of the Hangzhouwan, north, west and Jiangsu, Zhejiang provinces connected. The Tang Dynasty set the Huating County, the Song Dynasty Shanghai town, the Yuan Dynasty established Shanghai County. Shanghai is a national historical and cultural city, Jiangsu and Zhejiang Wu Yue culture and the introduction of the Western industrial culture into the formation of Shanghai's unique Haipai culture.
1843 years later, Shanghai became the commercial port of opening to the outside city and rapidly developed into the most prosperous ports and economic and financial center in the Far East, known as the "ten miles of Shiliangchang". Shanghai land area of 6340.5 square kilometers, under the jurisdiction of 16 municipal districts, is a northern subtropical monsoon climate. Shanghai has the highest GDP in China and the second largest in Asian cities. Shanghai is the world's leading financial center, the global population size and one of the largest metropolitan areas, by GAWC named the world's first-tier cities sixth. Shanghai "National Center City Index" ranked second in China, the total household deposits and per capita household deposits are the second highest in the country.
In the 2017, the total number of high-tech enterprises in Shanghai reached 7,642, ranking first in Forbes "list of the best commercial cities in mainland China". Shanghai port Container throughput ranks first in the world and has the first free trade zone in China (Shanghai) in mainland China. Shanghai's Yangtze River Delta Urban agglomeration is one of the six largest urban groups in the world.