| Nom | Prénom | Mandat | Power |
|---|---|---|---|
| BARDON | Renaud | 1970-07 | |
| SIGMA CHEMICAL FOREIGN HOLDING COMPANY O'DONNELL | Anthony | 1966-02 | |
| ALDRICH CHEMICAL FOREIGN HOLDING COMPANY O'DONNELL | ANTHONY | 1966-02 | |
| ROSENBERGER | DIDIER | 1966-04 | Person with the authority to habitually bind the company |