1975
Establishment of Diplomatic Relations with Palestine
Establishment of Diplomatic Relations with Palestine
1976
 Sri Lanka hosts 5th NAM
Sri Lanka hosts 5th NAM
1976
NAM Summit held
NAM Summit held
1976
Establishment of Diplomatic Relations with Qatar
Establishment of Diplomatic Relations with Qatar
1976
First Sri Lankan President of the United Nations General Assembly
First Sri Lankan President of the United Nations General Assembly

In 1976 H. Shirley Amerasinghe was appointed as the first Sri Lankan President of the 31st Session of the United Nations General Assembly.

1977
 Establishment of Diplomatic Relations with Korea
Establishment of Diplomatic Relations with Korea

Diplomatic Relations with the Republic of Korea established on 14 November 1977.

1978
Sri Lanka for Disarmament
Sri Lanka for Disarmament

Sri Lanka, proposed the first ever United Nations General Assembly Special Session on Disarmament, which was against nuclear weapons, small arms and the arms race in outer space.

1979
 Establishment of Diplomatic Relations with UAE
Establishment of Diplomatic Relations with UAE

Diplomatic Relations with the United Arab Emirates established in June 1979

1979
Opening of the High Commission of Sri Lanka in Dhaka, Bangladesh, June
1979
Opening of the Embassy of Sri Lanka in Abu Dhabi, United Arab Emirates.
1980
Opening of the Embassy of Sri Lanka in Malé, Maldives.
1981
Establishment of Diplomatic Relations with Oman
Establishment of Diplomatic Relations with Oman