The West African Economic and Monetary Union (WAEMU) was established by Treaty signed in Dakar on January 10, 1994, by the Heads of State and Government of seven West African nations sharing a common currency, the CFA Franc.
These founding members are Benin, Burkina Faso, Côte d’Ivoire, Mali, Niger, Senegal, and Togo. The Treaty entered into force on August 1, 1994, following ratification by Member States. Guinea-Bissau became the eighth member on May 2, 1997.