| Country | Action | Action Date | Effective Date |
|---|
| Algeria | Extension | 14/01/1910 | |
| AUSTRIA | Declaration | 01/01/1905 | |
| AUSTRIA | Signature | 26/09/1906 | |
| AUSTRIA | Ratification | 24/09/1907 | |
| BELGIUM | Signature | 26/09/1906 | |
| BELGIUM | Ratification | 24/09/1907 | |
| Ceylon | Extension | 14/01/1910 | |
| DANZIG | Accession | 23/08/1921 | |
| DENMARK | Signature | 26/09/1906 | |
| Fiji | Extension | 14/01/1910 | |
| FRANCE | Signature | 26/09/1906 | |
| FRANCE | Ratification | 24/09/1907 | |
| FRANCE | Declaration | 14/01/1910 | |
| FRANCE | Declaration | 15/01/1910 | |
| FRANCE | Declaration | 05/07/1927 | |
| GERMANY | Signature | 26/09/1906 | |
| GERMANY | Ratification | 24/09/1907 | |
| Gibraltar | Extension | 14/01/1910 | |
| Gold Coast | Extension | 14/01/1910 | |
| HUNGARY | Declaration | 23/06/1925 | |
| ITALY | Signature | 26/09/1906 | |
| ITALY | Accession | 29/12/1909 | |
| Leeward Islands | Extension | 14/01/1910 | |
| LUXEMBOURG | Signature | 26/09/1906 | |
| LUXEMBOURG | Ratification Dated | 12/11/1906 | |
| LUXEMBOURG | Ratification | 24/09/1907 | |
| Morocco | Extension | 05/07/1927 | |
| NETHERLANDS THE | Signature | 26/09/1906 | |
| NETHERLANDS THE | Ratification | 24/09/1907 | |
| New Zealand | Extension | 14/01/1910 | |
| Nigeria, North | Extension | 14/01/1910 | |
| POLAND | Accession | 14/01/1921 | |
| PORTUGAL | Signature | 26/09/1906 | |
| PORTUGAL | Ratification | 24/09/1907 | |
| SPAIN | Signature | 26/09/1906 | |
| SWEDEN | Signature | 26/09/1906 | |
| SWEDEN | Accession | 14/01/1910 | |
| SWEDEN | Denunciation | 21/11/1950 | |
| SWITZERLAND | Signature | 26/09/1906 | |
| SWITZERLAND | Ratification | 24/09/1907 | |
| Trinidad | Extension | 14/01/1910 | |
| Tunis | Extension | 15/01/1910 | |
| Uganda | Extension | 14/01/1910 | |
| UNITED KINGDOM | Signature | 26/09/1906 | |
| UNITED KINGDOM | Ratification | 24/09/1907 | |
| UNITED KINGDOM | Denunciation | 29/01/1938 | |