一口通商
Following on from his success in Xinjiang, Lu received the appointment of Governor-general of Huguang then on 14September 1832 he became Governor-general of Liangguang with responsibility for Guangdong and Guangxi. Canton (now Guangzhou), the capital of Guangdong, had long been the epicentre of foreign trade with China. Lu now became responsible for the Canton System operated in the southern port by a group of Chinese merchants known as the Cohong from the Thirteen Factories on the banks of the Pearl River.