CountryActionAction DateEffective Date
All Territories under UK SovereigntyExtension12/09/1908
Malay States, FederatedExtension28/11/1935
Malay States, UnfederatedExtension28/11/1935
PARAGUAYSignature12/09/1908
UNITED KINGDOMSignature12/09/1908
UNITED KINGDOMRatification30/01/1911