a, Niger, Nigeria, Norway, Oman, Pakistan,
Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland,
Portugal, Qatar, Romania, Russia, Saint Lucia, Saint Vincent and the
Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia,
Senegal, Serbia and Montenegro, Seychelles, Singapore, Slovakia,
Slovenia, South Africa, Spain, Sri Lanka, Sudan, Suriname, Swaziland,
Sweden, Switzerland, Tajikistan, Tanzania, Thailand, Togo, Tonga,
Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda,
Ukraine, UAE, UK, US, Uruguay, Uzbekistan, Venezuela, Vietnam, Yemen,
Zambia, Zimbabwe

signatory states (countries that have signed, but not ratified, the
Convention) - (22) The Bahamas, Bhutan, Burma, Cambodia, Central
African Republic, Chad, Comoros, Democratic Republic of the Congo,
Republic of the Congo, Djibouti, Dominican Republic, Grenada, Guinea-
Bissau, Haiti, Honduras, Israel, Liberia, Madagascar, Marshall Islands,
Rwanda, Saint Kitts and Nevis, Sierra Leone; note - states have signed
but not ratified the convention

Organization of African Unity (OAU): see African Union

Organization of American States (OAS): established - 14 April 1890 as
the International Union of American Republics; 30 April 1948 adopted
present charter; effective - 13 December 1951

aim - to promote regional peace and security as well as economic and
social development

members - (35) Antigua and Barbuda, Argentina, The Bahamas, Barbados,
Belize, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba
(excluded from formal participation since 1962), Dominica, Dominican
Republic, Ecuador, El Salvador, Grenada, Guatemala, Guyana, Haiti,
Honduras, Jamaica, Mexico, Nicaragua, Panama, Paraguay, Peru, Saint
Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines,
Suriname, Trinidad and Tobago, US, Uruguay, Venezuela

observers - (56) Algeria, Angola, Armenia, Austria, Azerbaijan,
Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Egypt, Equatorial Guinea, Estonia, EU, Finland,
France, Georgia, Germany, Ghana, Greece, Holy See, Hungary, India,
Ireland, Israel, Italy, Japan, Kazakhstan, South Korea, Latvia,
Lebanon, Morocco, Netherlands, Norway, Pakistan, Philippines, Poland,
Portugal, Qatar, Romania, Russia, Saudi Arabia, Serbia and Montenegro,
Slovakia, Spain, Sri Lanka, Sweden, Switzerland, Thailand, Tunisia,
Turkey, Ukraine, UK, Yemen

Organization of Arab Petroleum Exporting Co