When did the Transfer of sovereignty over Hong Kong happen?
Transfer of sovereignty over Hong Kong The transfer of sovereignty over Hong Kong from the United Kingdom to China, referred to as "the Handover" internationally or "the Return" in China, took place on 1 July 1997. The landmark event marked the end of British administration in Hong Kong, and is often regarded as the watershed of the British Empire.
Sino-British New Equal Treaty The Sino-British New Equal Treaty, or the Sino-British Treaty for the Relinquishment of Extra-Territorial Rights in China was a bilateral treaty concluded between the British and the Chinese governments in Chongqing on 11 January 1943. The formal name of the treaty was "Treaty Between His Majesty in Respect of the United Kingdom and India and His Excellency the President of the National Government of the Republic of China for the Relinquishment of Extra-Territorial Rights in China and the Regulation of Related Matters".