The treaty between Britain and China that ended the First Opium War. The first Unequal Treaty, it ceded Hong Kong to Britain, broke the Chinese monopoly on trade, and opened the treaty ports of Xiamen (Amoy), Guangzhou (Canton), Fuzhou (Foochow), Ningbo (Ningpo), and Shanghai to foreign trade. Further treaties extended trade and residence privileges to other nations and set up the framework for Western economic expansion in China.