Person ? Constantin Drosso
- From 1912-01-01 to 1912-12-31, Administrateur of Haute-Guinée (Mines de la)
- From 1912-01-01 to 1923-12-31, Administrateur of COMPAGNIE INDUSTRIELLE DU PLATINE
- From 1912-01-01 to 1927-12-31, Administrateur of Siguiri (Cie des Mines de).
- From 1912-01-01 to 1927-12-31, Administrateur of COMPAGNIE MINIERE DE GUINÉE
- From 1927-01-01 to 1933-12-31, Administrateur of COMPAGNIE INDUSTRIELLE DU PLATINE