| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| All Territories under UK Sovereignty | Extension | 09/03/1893 | |
| British African Protectorates | Extension | 22/09/1909 | |
| ROUMANIA | Signature | 21/03/1893 | |
| ROUMANIA | Ratification | 25/02/1894 | 09/03/1894 |
| Solomon Islands Protectorate | Extension | 29/07/1937 | |
| UNITED KINGDOM | Signature | 21/03/1893 | |
| UNITED KINGDOM | Ratification | 12/05/1893 | |
| Zanzibar | Extension | 29/07/1937 |