The Treaty of Nanking or Nanjing was a peace treaty which ended the First Opium War (1839–42) between the United Kingdom and the Qing dynasty of China on 29 August 1842. It was the first of what the Chinese later called the unequal treaties on the ground that Britain had no obligations in return.
In the wake of China's military defeat, with British warships poised to attack Nanking, representatives from the British and Qing Empires negotiated on board HMS Cornwallis anchored at the city. On 29 August 1842, British representative Sir Henry Pottinger and Qing representatives Qiying, Yilibu, and Niu Jian signed the treaty. It consisted of thirteen articles and was ratified by Queen Victoria and the Daoguang Emperor nine months later. A copy of the treaty is kept by the British government while another copy is kept by the Ministry of Foreign Affairs of Taiwan at the National Palace Museum in Taipei.
The fundamental purpose of the treaty was to change the framework of foreign trade imposed by the Canton System, which had been in force since 1760. Under Article V, the treaty abolished the former monopoly of the Cohong and their Thirteen Factories in Canton. Four additional "treaty ports" opened for foreign trade alongside Canton (Shameen Island from 1859 until 1943): Amoy (Xiamen until 1930), Foochowfoo (Fuzhou), Ningpo (Ningbo) and Shanghai (until 1943), where foreign merchants were to be allowed to trade with anyone they wished. Britain also gained the right to send consuls to the treaty ports, which were given the right to communicate directly with local Chinese officials (Article II). The treaty stipulated that trade in the treaty ports should be subject to fixed tariffs, which were to be agreed upon between the British and the Qing governments (Article X).
The Qing government was obliged to pay the British government six million silver dollars for the opium that had been confiscated by Lin Zexu in 1839 (Article IV), 3 million dollars in compensation for debts that the Hong merchants in Canton owed British merchants (Article V), and a further 12 million dollars in war reparations for the cost of the war (VI). The total sum of 21 million dollars was to be paid in installments over three years and the Qing government would be charged an annual interest rate of 5 percent for the money that was not paid in a timely manner (Article VII).
The Qing government undertook to release all British prisoners of war (Article VIII) and to give a general amnesty to all Chinese subjects who had cooperated with the British during the war (Article IX).
The British on their part, undertook to withdraw all of their troops from Nanking, the Grand Canal and the military post at Zhenhai, as well as not to interfere with China trade generally, after the emperor had given his assent to the treaty and the first installment of money had been received (Article XII). British troops would remain in Gulangyu and Zhaobaoshan until the Qing government had paid reparations in full (Article XII).
In 1841, a rough outline for a treaty was sent for the guidance of Plenipotentiary Charles Elliot. It had a blank after the words "the cession of the islands of". Pottinger sent this old draft treaty on shore, with the letter s struck out of islands and the words Hong Kong placed after it. Robert Montgomery Martin, treasurer of Hong Kong, wrote in an official report:
The terms of peace having been read, Elepoo the senior commissioner paused, expecting something more, and at length said "is that all?" Mr. Morrison enquired of Lieutenant-colonel Malcolm [Pottinger's secretary] if there was anything else, and being answered in the negative, Elepoo immediately and with great tact closed the negotiation by saying, "all shall be granted—it is settled—it is finished."
The Qing government agreed to make Hong Kong Island a crown colony, ceding it to the British Queen "in perpetuity" (常遠, Cháng yuǎn, in the Chinese version of the treaty), to provide British traders with a harbour where they could "careen and refit their ships and keep stores for that purpose" (Article III). Pottinger was later appointed the first governor of Hong Kong.
In 1860, the colony was extended with the Kowloon peninsula and in 1898, the Second Convention of Peking further expanded the colony with the 99-year lease of the New Territories. In 1984, the governments of the United Kingdom and the People's Republic of China (PRC) concluded the Sino-British Joint Declaration on the Question of Hong Kong, under which the sovereignty of the leased territories, together with Hong Kong Island and Kowloon (south of Boundary Street) ceded under the Convention of Peking (1860), was transferred to the PRC on 1 July 1997.
Because of the brevity of the Treaty of Nanking and its terms being phrased only as general stipulations, the British and Chinese representatives agreed that a supplementary treaty should be concluded to establish more detailed regulations for relations. On 3 October 1843, the parties concluded the supplementary Treaty of the Bogue at the Bocca Tigris outside Canton.
Nevertheless, the treaties of 1842–43 left several unsettled issues. In particular they did not resolve the status of the opium trade. Although the American treaty of 1844 explicitly banned Americans from selling opium, the trade continued as both the British and American merchants were only subject to the legal control of their consuls. The opium trade was later legalised in the Treaties of Tianjin, which China concluded after the Second Opium War resulted in another defeat for the Qing Dynasty.
The Nanking Treaty ended the old Canton System and created a new framework for China's foreign relations and overseas trade which would last for almost a hundred years. From the Chinese perspective, the most injurious terms were the fixed trade tariff, extraterritoriality, and the most favoured nation provisions. These were conceded partly out of expediency and partly because Qing officials did not yet know of international law or understand the long term consequences. The tariff fixed at 5% was higher than before, the concept of extraterritoriality seemed to put the burden on foreigners to police themselves, and most favoured nation treatment appeared to set the foreigners one against the others. Although China regained tariff autonomy in the 1920s, extraterritoriality was not formally abolished until 1943.
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