| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| Botswana | October 29, 2003 | |||
| Cabo Verde | October 14, 2022 | |||
| Eswatini | March 6, 1997 | |||
| Gambia | August 3, 2021 | |||
| Lesotho | February 12, 1999 | |||
| Liberia | March 24, 2010 | |||
| Malawi | March 6, 1997 | |||
| Mozambique | August 5, 2020 | |||
| Namibia | January 14, 2004 | |||
| Sao Tome and Principe | February 27, 2016 | |||
| Uganda | November 21, 2000 | |||
| United Republic of Tanzania | September 1, 1999 | |||
| Zimbabwe | March 6, 1997 |