A party cadre conference held June 28, 1970 the name of the party was changed to the Marxist–Leninist Communist Party of Belgium (Parti communiste marxiste-léniniste de Belgique, abbreviated P.C.M.L.B.). Fernand Lefebvre was named second secretary of the party. The party was active within the 'Centre de diffusion et de documentation pour le Vietnam' and 'Comité national Palestine'.
