 However, China insisted for a year before 2000 as the Sino-British Joint Liaison Group in Hong Kong would be dissolved in 2000 as envisioned in 1986 (the Joint Liaison Group would be dissolved in 1999).Eventually the year 1999 was agreed upon.On 13 April 1987, the Joint Declaration on the Question of Macau by the governments of the People's Republic of China and the Portuguese Republic was formally signed by the Prime Ministers of both governments in Beijing.