| Country | Action | Action Date | Effective Date |
|---|
| Australia | Extension | 30/04/1909 | |
| AUSTRIA-HUNGARY | Signature | 03/12/1903 | |
| AUSTRIA-HUNGARY | Ratification | 06/04/1907 | |
| BELGIUM | Signature | 03/12/1903 | |
| BELGIUM | Ratification | 06/04/1907 | |
| BRAZIL | Signature | 03/12/1903 | |
| BRAZIL | Ratification | 06/04/1907 | |
| CZECHOSLOVAKIA | Accession | 04/06/1921 | |
| DENMARK | Accession | 01/10/1910 | |
| East Indies | Withdrawal | 29/02/1912 | |
| EGYPT | Signature | 03/12/1903 | |
| EGYPT | Ratification | 25/10/1906 | |
| Falkland Islands | Extension | 01/01/1905 | |
| Fiji | Extension | 27/07/1910 | |
| FRANCE | Signature | 03/12/1903 | |
| FRANCE | Ratification | 06/04/1907 | |
| GERMANY | Signature | 03/12/1903 | |
| GERMANY | Ratification | 06/04/1907 | |
| GREECE | Signature | 03/12/1903 | |
| GREECE | Communication | 16/05/1904 | |
| HUNGARY | Notification | 07/06/1922 | |
| India | Accession | 01/01/1905 | |
| ITALY | Signature | 03/12/1903 | |
| ITALY | Ratification | 06/04/1907 | |
| Jamaica | Extension | 01/01/1905 | |
| Jamaica | Withdrawal | 17/03/1910 | |
| Leeward Islands | Extension | 01/01/1905 | |
| LUXEMBOURG | Signature | 03/12/1903 | |
| LUXEMBOURG | Ratification | 06/04/1907 | |
| MEXICO | Accession | 10/06/1909 | |
| MONTENEGRO | Signature | 03/12/1903 | |
| MONTENEGRO | Ratification | 06/04/1907 | |
| Natal | Extension | 01/01/1905 | |
| NETHERLANDS THE | Signature | 03/12/1903 | |
| NETHERLANDS THE | Ratification | 06/04/1907 | |
| Nigeria, South | Extension | 01/01/1905 | |
| NORWAY | Accession | 20/05/1911 | |
| Orange River Colony | Extension | 01/01/1905 | |
| PERSIA | Signature | 03/12/1903 | |
| PERSIA | Ratification | 06/04/1907 | |
| PERSIA | Declaration | 06/04/1907 | |
| PORTUGAL | Signature | 03/12/1903 | |
| PORTUGAL | Ratification | 06/10/1911 | |
| ROUMANIA | Signature | 03/12/1903 | |
| ROUMANIA | Ratification | 06/04/1907 | |
| RUSSIA | Signature | 03/12/1903 | |
| RUSSIA | Ratification | 06/04/1907 | |
| SERBIA | Signature | 03/12/1903 | |
| SERBIA | Communication | 14/07/1904 | |
| South Africa | Withdrawal | 10/12/1912 | |
| SPAIN | Signature | 03/12/1903 | |
| SPAIN | Ratification | 09/02/1909 | |
| SWEDEN | Accession | 20/12/1907 | |
| SWITZERLAND | Signature | 03/12/1903 | |
| SWITZERLAND | Ratification | 06/04/1907 | |
| The Gambia | Extension | 01/01/1905 | |
| UNITED KINGDOM | Signature | 03/12/1903 | |
| UNITED KINGDOM | Ratification | 06/04/1907 | |
| UNITED KINGDOM | Declaration | 06/04/1907 | |
| UNITED STATES OF AMERICA | Signature | 03/12/1903 | |
| UNITED STATES OF AMERICA | Ratification | 06/04/1907 | |
| UNITED STATES OF AMERICA | Declaration | 06/04/1907 | |
| UNITED STATES OF AMERICA | Withdrawal | 22/04/1922 | |
| West Indies | Withdrawal | 10/05/1909 | |
| Zanzibar | Extension | 16/12/1909 | |