| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA | Signature | 05/03/1902 | |
| AUSTRIA | Ratification | 31/01/1903 | |
| AUSTRIA-HUNGARY | Signature | 05/03/1902 | |
| BELGIUM | Signature | 05/03/1902 | |
| BELGIUM | Ratification | 18/06/1902 | |
| FRANCE | Signature | 05/03/1902 | |
| FRANCE | Ratification | 29/01/1903 | |
| GERMANY | Signature | 05/03/1902 | |
| GERMANY | Ratification | 15/01/1903 | |
| HUNGARY | Signature | 05/03/1902 | |
| HUNGARY | Ratification | 31/01/1903 | |
| ITALY | Signature | 05/03/1902 | |
| ITALY | Ratification | 01/02/1903 | |
| ITALY | Denunciation | 26/08/1912 | 01/09/1913 |
| LUXEMBOURG | Accession | 01/01/1905 | |
| NETHERLANDS THE | Signature | 05/03/1902 | |
| NETHERLANDS THE | Ratification | 30/01/1903 | |
| PERU | Ratification | 01/09/1903 | |
| SPAIN | Signature | 05/03/1902 | |
| SWEDEN | Signature | 05/03/1902 | |
| SWITZERLAND | Accession | 01/09/1906 | |
| UNITED KINGDOM | Signature | 05/03/1902 | |
| UNITED KINGDOM | Ratification | 31/01/1903 | |
| UNITED KINGDOM | Declaration | 31/01/1903 | |
| UNITED KINGDOM | Withdrawal | 05/08/1912 | 01/09/1913 |