The city of Shànghǎi, 上海 Shanghai, situated on the Huangpu River at the delta of the Yangtze, is the most populous city in China and one of the most populous cities in the world, as well as the second autonomous municipality of the country. Shanghai is seen as the economic capital of China. With the development of the past decades, Shanghai is an economic, financial and trade centre, and communications major centre. Its port, the first in the country, is one of the busiest in the world.