| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| All Territories under UK Sovereignty | Extension | 24/09/1910 | |
| British African Protectorates | Extension | 04/04/1912 | |
| GREECE | Signature | 24/09/1910 | |
| GREECE | Ratification | 05/12/1911 | |
| Malay States, Federated | Extension | 03/02/1919 | |
| Malay States, Unfederated | Extension | 02/10/1934 | |
| Solomon Islands Protectorate | Extension | 03/03/1937 | |
| UNITED KINGDOM | Signature | 24/09/1910 | |
| UNITED KINGDOM | Ratification | 31/10/1910 | |
| Zanzibar | Extension | 03/03/1937 |