On 13 November 1999, the Director-General received a letter from the State Minister and Minister of Foreign Affairs of Portugal notify him that:
"In accordance with the Joint Declaration of the Government of the Portuguese Republic and the Government of the People’s Republic of China on the Question of Macau signed on 13 April 1987, the Portuguese Republic will continue to have international responsibility for Macau until 19 December 1999 and from that onwards the People’s Republic of China will resume the exercise of sovereignty over Macau with effect from 20 December 1999. From 20 December 1999 onwards the Portuguese Republic will cease to be responsible for the international rights and obligations arising from the application of the above-mentioned Convention to Macau"
Notification of extension to Macao: September 30, 1999.