| 22 December 1952 |
1 January 1954 |
International Telecommunication Convention (with Annexes, Final Protocol and Additional Protocol) |
| 18 May 1956 |
4 August 1959 |
Customs Convention on Containers [with Annexes and Protocol of Signature] |
| 3 October 1957 |
1 April 1959 |
Universal Postal Convention [together with Final Protocol, Detailed Regulations and Annexes, Provisions concerning Air Mail with their Final Protocol and Annexes] |
| 21 December 1959 |
1 January 1961 |
International Telecommunications Convention |
| 14 December 1960 |
22 May 1962 |
Convention against Discrimination in Education adopted by the General Conference of the United Nations Educational, Scientific and Cultural Organisation at its Eleventh Session |
| 30 March 1961 |
13 December 1964 |
Single Convention on Narcotic Drugs, 1961 |
| 16 October 1962 |
16 October 1962 |
Agreement (with annexes) between the Federation of Malaya and the United Kingdom (on behalf of Singapore) and Australia concerning the transaction of money order business between Malaya and Christmas Island. |
| 16 October 1962 |
16 October 1962 |
Agreement (with schedules) between the Federation of Malaya and the United Kingdom (on behalf of Singapore) and Australia concerning the exchange of postal parcels subject to trade charges between Malaya and Christmas Island. |
| 6 June 1963 |
1 July 1963 |
Agreement concerning the provision of treatment in Singapore hospitals of Asian residents of Christmas Island |
| 10 July 1964 |
1 January 1966 |
Constitution of the Universal Postal Union [with Final Protocol, General Regulations and Final Protocol thereto] |
| 10 July 1964 |
1 January 1966 |
Agreement concerning Postal Parcels [with Final Protocol, Detailed Regulations and Final Protocol thereto] |
| 10 July 1964 |
1 January 1966 |
Universal Postal Convention |
| 15 November 1965 |
10 February 1969 |
Convention on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters |
| 11 June 1968 |
5 September 1969 |
Customs Convention on the temporary Importation of Scientific Equipment |
| 14 November 1969 |
1 July 1971 |
Universal Postal Convention (with Final Protocol and Detailed Regulations) |
| 14 November 1969 |
1 July 1971 |
Additional Protocol to the Constitution of the Universal Postal Union (with Declarations, General Regulations, Final Protocol and Rules of Procedure of Congresses) |
| 14 November 1969 |
1 July 1971 |
Additional Protocol to the Constitution of the Universal Postal Union (with Declarations, General Regulations, Final Protocol and Rules of Procedure of Congresses) |
|
18 March 2007 |
Convention on the Protection and Promotion of the Diversity of Cultural Expressions |