| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINE REPUBLIC | Signature | 03/11/1906 | |
| ARGENTINE REPUBLIC | Ratification | 27/12/1911 | |
| Australia | Extension | 03/11/1906 | |
| AUSTRIA-HUNGARY | Signature | 03/11/1906 | |
| AUSTRIA-HUNGARY | Ratification | 17/01/1909 | |
| Bahamas | Extension | 03/11/1906 | |
| Barbados | Extension | 03/11/1906 | |
| Basutoland | Extension | 03/11/1906 | |
| Bechuanaland | Extension | 03/11/1906 | |
| BELGIUM | Signature | 03/11/1906 | |
| BELGIUM | Ratification | 21/02/1907 | |
| Bermuda | Extension | 03/11/1906 | |
| BOSNIA AND HERZEGOVINA | Accession | 23/12/1911 | |
| BRAZIL | Signature | 03/11/1906 | |
| BRAZIL | Ratification | 02/07/1908 | |
| British East Africa | Extension | 03/11/1906 | |
| British Guiana | Extension | 03/11/1906 | |
| British Honduras | Extension | 03/11/1906 | |
| BULGARIA | Signature | 03/11/1906 | |
| BULGARIA | Ratification | 29/05/1908 | |
| Canada | Extension | 03/11/1906 | |
| Ceylon | Extension | 03/11/1906 | |
| CHILE | Signature | 03/11/1906 | |
| CONGO | Accession | 16/09/1911 | |
| Curacao | Extension | | 01/06/1910 |
| Cyprus | Extension | 03/11/1906 | |
| DENMARK | Signature | 03/11/1906 | |
| DENMARK | Ratification | 10/06/1907 | |
| EGYPT | Accession | 03/02/1912 | |
| Falkland Islands | Extension | 03/11/1906 | |
| Fiji | Extension | 03/11/1906 | |
| FRANCE | Accession | 01/01/1905 | |
| FRANCE | Signature | 03/11/1906 | |
| FRANCE | Ratification | 23/02/1910 | |
| GERMANY | Extension | 01/01/1905 | |
| GERMANY | Signature | 03/11/1906 | |
| GERMANY | Ratification | 18/03/1908 | |
| Gibraltar | Extension | 03/11/1906 | |
| Gold Coast | Extension | 03/11/1906 | |
| GREECE | Signature | 03/11/1906 | |
| GREECE | Ratification | 22/06/1912 | |
| Hong Kong | Extension | 03/11/1906 | |
| India | Extension | 03/11/1906 | |
| ITALY | Signature | 03/11/1906 | |
| ITALY | Ratification | 03/05/1912 | |
| ITALY | Extension | 27/11/1912 | |
| Jamaica | Extension | 03/11/1906 | |
| JAPAN | Signature | 03/11/1906 | |
| JAPAN | Ratification | 14/06/1908 | |
| JAPAN | Reservation | 14/06/1908 | |
| JAPAN | Extension | 13/02/1912 | |
| Leeward Islands | Extension | 03/11/1906 | |
| Malta | Extension | 03/11/1906 | |
| Mauritius | Extension | 03/11/1906 | |
| MEXICO | Signature | 03/11/1906 | |
| MEXICO | Ratification | 15/10/1907 | |
| MONACO | Signature | 03/11/1906 | |
| MONACO | Ratification | 30/05/1910 | |
| MOROCCO | Accession | 22/02/1911 | |
| NETHERLANDS THE | Signature | 03/11/1906 | |
| NETHERLANDS THE | Ratification | 14/07/1907 | |
| New Zealand | Extension | 03/11/1906 | |
| Newfoundland (UK) | Extension | 06/01/1913 | |
| Nigeria, North | Extension | 03/11/1906 | |
| Nigeria, South | Extension | 03/11/1906 | |
| Northern Rhodesia | Extension | 03/11/1906 | |
| NORWAY | Signature | 03/11/1906 | |
| NORWAY | Ratification | 19/10/1907 | |
| Nyasaland | Extension | 03/11/1906 | |
| PERSIA | Signature | 03/11/1906 | |
| PERSIA | Ratification | 23/10/1911 | |
| PORTUGAL | Signature | 03/11/1906 | |
| PORTUGAL | Ratification | 26/02/1909 | |
| PORTUGAL | Extension | 22/12/1911 | |
| ROUMANIA | Signature | 03/11/1906 | |
| ROUMANIA | Ratification | 31/05/1907 | |
| RUSSIA | Signature | 03/11/1906 | |
| RUSSIA | Ratification | 08/07/1908 | |
| SAN MARINO | Accession | 08/05/1912 | |
| SIAM | Accession | 18/05/1912 | |
| Somaliland Protectorate | Extension | 03/11/1906 | |
| South Africa | Extension | 03/11/1906 | |
| SOUTH AFRICA | Accession | 01/10/1910 | |
| Southern Rhodesia | Extension | 03/11/1906 | |
| SPAIN | Signature | 03/11/1906 | |
| SPAIN | Ratification | 29/05/1908 | |
| SPAIN | Extension | 08/05/1912 | |
| St Helena | Extension | 03/11/1906 | |
| Straits Settlements | Extension | 03/11/1906 | |
| Swaziland | Extension | 03/11/1906 | |
| SWEDEN | Signature | 03/11/1906 | |
| SWEDEN | Ratification | 06/02/1908 | |
| The Gambia | Extension | 03/11/1906 | |
| Trinidad | Extension | 03/11/1906 | |
| TUNIS | Accession | 01/01/1905 | |
| TURKEY | Signature | 03/11/1906 | |
| Turks And Caicos Islands | Extension | 03/11/1906 | |
| Uganda | Extension | 03/11/1906 | |
| UNITED KINGDOM | Signature | 03/11/1906 | |
| UNITED KINGDOM | Ratification | 30/06/1908 | |
| UNITED STATES OF AMERICA | Signature | 03/11/1906 | |
| UNITED STATES OF AMERICA | Ratification | 17/05/1912 | |
| URUGUAY | Signature | 03/11/1906 | |
| URUGUAY | Ratification | 11/06/1912 | |
| Weihaiwei | Extension | 03/11/1906 | |
| Windward Islands | Extension | 03/11/1906 | |