| Country | Action | Action Date | Effective Date |
|---|
| All Territories under UK Sovereignty | Extension | 26/09/1898 | |
| Aruba | Extension | 01/01/1986 | |
| Cameroons | Extension | 27/01/1928 | |
| Caribbean part of the Netherlands | Extension | 10/10/2010 | |
| Curacao | Extension | 10/10/2010 | |
| Nauru | Extension | 27/01/1928 | |
| NETHERLANDS THE | Signature | 26/09/1898 | |
| NETHERLANDS THE | Ratification | 05/11/1898 | |
| New Guinea | Extension | 27/01/1928 | |
| Palestine, Mandated Territories (exc. Trans-Jordan) | Extension | 27/01/1928 | |
| Sint Maarten | Extension | 10/10/2010 | |
| South West Africa | Extension | 27/01/1928 | |
| Tanganyika | Extension | 27/01/1928 | |
| Togoland | Extension | 27/01/1928 | |
| Transjordan | Extension | 05/04/1932 | |
| UNITED KINGDOM | Signature | 26/09/1898 | |
| UNITED KINGDOM | Ratification | 19/11/1898 | |
| Western Samoa (UK) | Extension | 27/01/1928 | |