| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
| Algeria | June 3, 1991 | Ratification: June 21, 1995 | July 21, 1995 | |
| Angola | June 3, 1991 | Ratification: April 11, 1992 | May 12, 1994 | |
| Benin | February 27, 1992 | Ratification: May 10, 1999 | June 9, 1999 | |
| Botswana | June 3, 1991 | Ratification: June 27, 1996 | July 27, 1996 | |
| Burkina Faso | June 3, 1991 | Ratification: May 19, 1992 | May 12, 1994 | |
| Burundi | June 3, 1991 | Ratification: August 5, 1992 | May 12, 1994 | |
| Cameroon | June 3, 1991 | Ratification: December 20, 1995 | January 19, 1996 | |
| Cape Verde | June 3, 1991 | Ratification: April 12, 1993 | May 12, 1994 | |
| Central African Republic | June 3, 1991 | Ratification: June 18, 1993 | May 12, 1994 | |
| Chad | June 3, 1991 | Ratification: June 26, 1993 | May 12, 1994 | |
| Comoros | June 3, 1991 | Ratification: June 6, 1994 | July 6, 1994 | |
| Congo | June 3, 1991 | Ratification: July 30, 1996 | September 29, 1996 | |
| Côte d'Ivoire | June 3, 1991 | Ratification: February 22, 1993 | May 12, 1994 | |
| Democratic Republic of the Congo | June 3, 1991 | Ratification: June 19, 1993 | May 12, 1994 | |
| Djibouti | June 3, 1991 | | | |
| Egypt | June 3, 1991 | Ratification: December 18, 1992 | May 12, 1994 | |
| Equatorial Guinea | June 3, 1991 | Ratification: December 20, 2002 | January 19, 2003 | |
| Eritrea | | | | |
| Ethiopia | June 3, 1991 | Ratification: November 5, 1992 | May 12, 1994 | |
| Gabon | June 3, 1991 | Ratification: November 6, 2007 | December 6, 2007 | |
| Gambia | June 3, 1991 | Ratification: April 20, 1993 | May 12, 1994 | |
| Ghana | June 3, 1991 | Ratification: September 25, 1991 | May 12, 1994 | |
| Guinea | June 3, 1991 | Ratification: July 17, 1992 | May 12, 1994 | |
| Guinea-Bissau | June 3, 1991 | Ratification: June 24, 1992 | May 12, 1994 | |
| Kenya | June 3, 1991 | Ratification: June 18, 1993 | May 12, 1994 | |
| Lesotho | June 3, 1991 | Ratification: August 12, 1997 | September 11, 1997 | |
| Liberia | June 3, 1991 | Ratification: June 23, 1993 | May 12, 1994 | |
| Libya | June 3, 1991 | Ratification: November 2, 1992 | May 12, 1994 | |
| Madagascar | June 3, 1991 | | | |
| Malawi | June 3, 1991 | Ratification: June 26, 1993 | May 12, 1994 | |
| Mali | June 3, 1991 | Ratification: November 13, 1992 | May 12, 1994 | |
| Mauritania | June 3, 1991 | Ratification: November 20, 2001 | December 20, 2001 | |
| Mauritius | June 3, 1991 | Ratification: February 14, 1992 | May 12, 1994 | |
| Mozambique | June 3, 1991 | Ratification: May 14, 1992 | May 12, 1994 | |
| Namibia | June 3, 1991 | Ratification: June 28, 1992 | May 12, 1994 | |
| Niger | June 3, 1991 | Ratification: June 22, 1992 | May 12, 1994 | |
| Nigeria | June 3, 1991 | Ratification: December 31, 1991 | May 12, 1994 | |
| Rwanda | June 3, 1991 | Ratification: October 1, 1993 | May 12, 1994 | |
| Sao Tome and Principe | June 3, 1991 | Ratification: June 2, 1993 | May 12, 1994 | |
| Senegal | June 3, 1991 | Ratification: February 26, 1992 | May 12, 1994 | |
| Seychelles | June 3, 1991 | Ratification: October 11, 1991 | May 12, 1994 | |
| Sierra Leone | June 3, 1991 | Ratification: March 15, 1994 | May 12, 1994 | |
| Somalia | June 3, 1991 | | | |
| South Africa | October 10, 1997 | Ratification: May 31, 2001 | June 30, 2001 | |
| Sudan | June 3, 1991 | Ratification: February 8, 1993 | May 12, 1994 | |
| Swaziland | June 29, 1992 | Ratification: June 6, 2001 | July 6, 2001 | |
| Togo | June 3, 1991 | Ratification: May 5, 1998 | June 4, 1998 | |
| Tunisia | June 3, 1991 | Ratification: May 3, 1994 | June 2, 1994 | |
| Uganda | June 3, 1991 | Ratification: December 31, 1991 | May 12, 1994 | |
| United Republic of Tanzania | June 3, 1991 | Ratification: January 10, 1992 | May 12, 1994 | |
| Zambia | June 3, 1991 | Ratification: October 26, 1992 | May 12, 1994 | |
| Zimbabwe | June 3, 1991 | Ratification: November 6, 1991 | May 12, 1994 | |