He returned to government in 1976 when he became Managing Director of the National Diamond Mining Company until 1987 .
Koroma began his political career as Attorney General in 1967 and 1968 .
Koroma returned to government in 1976 when Koroma became Managing Director of the National Diamond Mining Company until 1987 .
Koroma began his political career as Attorney General in 1967 and 1968 .