The National Union of the Unions of the Workers of Benin (UNSTB) was, from its founding in 1974 until the 1990s, the sole union federation in Benin. It was originally closely related to the People's Revolutionary Party of Benin (PRPB). The UNSTB is affiliated with the International Trade Union Confederation. See also Trade unions in Benin References Trade unions in Benin International Trade Union Confederation Trade unions established in 1974