| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA-HUNGARY | Signature | 28/05/1881 | |
| AUSTRIA-HUNGARY | Ratification Dated | 20/04/1882 | |
| AUSTRIA-HUNGARY | Ratification | 20/05/1882 | |
| FRANCE | Signature | 28/05/1881 | |
| FRANCE | Ratification Dated | 20/04/1882 | |
| FRANCE | Ratification | 20/05/1882 | |
| GERMANY | Signature | 28/05/1881 | |
| GERMANY | Ratification Dated | 12/04/1882 | |
| GERMANY | Ratification | 20/05/1882 | |
| ITALY | Signature | 28/05/1881 | |
| ITALY | Ratification Dated | 08/01/1882 | |
| ITALY | Ratification | 20/05/1882 | |
| ROUMANIA | Signature | 28/05/1881 | |
| ROUMANIA | Ratification Dated | 05/05/1882 | |
| ROUMANIA | Ratification | 20/05/1882 | |
| RUSSIA | Signature | 28/05/1881 | |
| RUSSIA | Ratification Dated | 05/11/1881 | |
| RUSSIA | Ratification | 20/05/1882 | |
| TURKEY | Signature | 28/05/1881 | |
| TURKEY | Ratification Dated | 22/03/1882 | |
| TURKEY | Ratification | 20/05/1882 | |
| UNITED KINGDOM | Signature | 28/05/1881 | |
| UNITED KINGDOM | Ratification | 26/12/1881 | |
| UNITED KINGDOM | Ratification Dated | 26/12/1881 | |
| UNITED KINGDOM | Ratification | 20/05/1882 | |