Sierra Leone is a member of the Mano River Union (MRU), which includes Guinea, Sierra Leone, Liberia, and Côte d’Ivoire.  Sierra Leone is also a member of the Economic Community of West African States (ECOWAS), which includes fifteen countries: Benin, Burkina Faso, Cape Verde, Côte d’Ivoire, The Gambia, Ghana, Guinea Bissau, Guinea, Liberia, Mali, Niger, Nigeria, Senegal, Sierra Leone, and Togo.  ECOWAS is in the process of developing a customs union among its members, allowing for the free flow of goods and services between member nations and the use of a single currency.

Sierra Leone has a preferential trade agreement with European Union’s Everything But Arms, with the United States African Growth and Opportunity Act (AGOA), and a multilateral agreement with the African Continental Free Trade Agreement, a trade agreement between 55 African Union member states to create a single market and a single currency union.