 Arab Republic of Egypt (Joining date:1969) |
 Libya (Joining date:1969) |
 Republic of Indonesia (Joining date:1969) |
 Republic of Togo (Joining date:1997) |
 Burkina Faso (Joining date:1974) |
 Malaysia (Joining date:1969) |
 Republic of Iraq (Joining date:1975) |
 Republic of Tunisia (Joining date:1969) |
 Cooperative Republic of Guyana (Joining date:1998) |
 People’s Democratic Republic of Algeria (Joining date:1969) |
 Republic of Kazakhstan (Joining date:1995) |
 Republic of Turkey (Joining date:1969) |
 Democratic Republic of Somalia (Joining date:1969) |
 People’s Republic of Bangladesh (Joining date:1974) |
 Republic of Lebanon (Joining date:1969) |
 Republic of Turkmenistan (Joining date:1992) |
 Federal Republic of Nigeria (Joining date:1986) |
 Republic of Albania (Joining date:1992) |
 Republic of Maldives (Joining date:1976) |
 Republic of Uganda (Joining date:1974) |
 Hashemite Kingdom of Jordan (Joining date:1969) |
 Republic of Azerbaijan(Joining date:1992) |
 Republic of Mali (Joining date:1969) |
 Republic of Uzbekistan (Joining date:1996) |
 Islamic Republic of Iran (Joining date:1969) |
 Republic of Benin (Joining date:1983) |
 Republic of Mozambique (Joining date:1994) |
 Republic of Yemen (Joining date:1969) |
 Islamic Republic of Mauritania (Joining date:1969) |
 Republic of Cameroon (Joining date:1974) |
 Republic of Niger (Joining date:1969) |
 State of Qatar (Joining date:1972) |
 Islamic Republic of Pakistan (Joining date:1969) |
 Republic of Chad (Joining date:1969) |
 Republic of Senegal (Joining date:1969) |
 Sultanate of Brunei Darussalam |
 Islamic Republic of Afghanistan (Joining date:1969) |
 Republic of Cote d’Ivoire (Ivory Coast) (Joining date:2001) |
 Republic of Sierra Leone (Joining date:1972) |
 Sultanate of Oman (Joining date:1972) |
 Kingdom of Bahrain (Joining date:1972) |
 Republic of Djibouti(Joining date:1978) |
 Republic of Tajikistan (Joining date:1992) |
 The State of Kuwait (Joining date:1969) |
 Kingdom of Morocco (Joining date:1969) |
 Republic of Gabon (Joining date:1974) |
 Republic of the Gambia (Joining date:1974) |
 The State of Palestine (Joining date:1969 |
 Kingdom of Saudi Arabia (Joining date:1969) |
 Republic of Guinea (Joining date:1969) |
 Republic of Sudan (Joining date: 1969) |
 The State of United Arab Emirates (Joining date: 1972) |
 Kyrgyz Republic (Joining date:1992) |
 Republic of Guinea-Bissau (Joining date:1974) |
 Republic of the Suriname (Joining date:1996) |
 Union of the Comoros (Joining date:1976) |
COMCEC
Bosnia and Herzegovina
Kingdom of Thailand
Russian Federation
TRNC
Central African Republic