| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| British African Protectorates | Extension | 23/09/1909 | |
| UNITED KINGDOM | Ratification | 25/03/1900 | |
| UNITED KINGDOM | Signature | 13/12/1900 | |
| UNITED STATES OF AMERICA | Signed | 13/12/1900 | |
| UNITED STATES OF AMERICA | Ratification | 28/03/1901 |