Shanghai is located on the west coast of the Pacific Ocean, the eastern edge of the Asian continent and the Yangtze River Delta. Shanghai's estuary is located at Wusongkou in the northeast, 39 miles away from Huangpu River, which naturally forms the outer sea of Neijiang.
According to the "three yuan and nine bureaus", during the operation of the central yuan, Shanghai's economic development should be ahead of Hong Kong's economic development. This is caused by human factors.