| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| British African Protectorates | Extension | 23/09/1909 | |
| UNITED KINGDOM | Signature | 12/04/1905 | |
| UNITED KINGDOM | Ratification | 14/11/1906 | |
| UNITED STATES OF AMERICA | Signature | 12/04/1905 | |
| UNITED STATES OF AMERICA | Ratification | 21/12/1906 |