| 22 April 1910 |
|
Agreement between Great Britain and Trengganu establishing a British Protectorate over Trengganu |
| 25 September 1923 |
|
Agreement of Friendship and regarding the Appointment of Officials (with additional Notes) |
| 6 June 1934 |
|
Agreement with Perak regarding Retrocession of the Windings territory to Perak |
| 28 June 1939 |
|
Denunciation of Boundary between Province Wellesley and State of Perak |
| 1 January 1946 |
1 January 1946 |
Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of India on the one hand and the Siamese Government on the other for the Termination of the State of War [With Exchanges of Notes and Memoranda between January 1, 1946 and May 8, 1947 concerning Property, Rights and Interests of Allied nationals in Siam] |
| 22 May 1958 |
|
Exchanges of Letters concerning Leases of Freehold Titles in Singapore for defence purposes |
| 9 May 1961 |
1 April 1961 |
Overseas Service Agreement between the United Kingdom and Singapore (No.11) |
| 6 June 1963 |
1 July 1963 |
Agreement concerning the provision of treatment in Singapore hospitals of Asian residents of Christmas Island |
| 30 August 1963 |
|
Agreement between the United Kingdom and Singapore for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income |
| 1 December 1966 |
23 March 1967 |
Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Singapore for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income |
| 1 August 1967 |
1 August 1967 |
Air Services Agreement for Air Services between and beyond their respective territories ( Singapore ) |
| 19 July 1968 |
|
Exchange of Letters (Understanding) concerning Defence Aid Arrangements 1968, and Appendices A, B, B (1), C, C (1), D, E. |
| 19 September 1968 |
25 September 1968 |
Exchanges of Notes and Letters concerning the Guarantee by the United Kingdom and the Maintenance of the Minimum Sterling Proportion by certain Overseas Sterling Area Governments (The Sterling Area Agreements) |
| 22 July 1975 |
22 July 1975 |
Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Singapore for the Promotion and Protection of Investments |