| OCI | Auditor |
| AIB-Vinçotte International NV | Lutgart Hendriks |
| AIB-Vinçotte International NV | Peter D'haeyere |
| B&S QUALICERT | Bruno Van Delsen |
| B&S QUALICERT | Sophie Cuvelier |
| PROMAG sprl | Noël Maes |
| SCHOUTEN CERTIFICATION B.V. | Henny Verrips |
| SCHOUTEN CERTIFICATION B.V. | John Tersteeg |
| SCHOUTEN CERTIFICATION B.V. | Leen Sintnicolaas |
| SCHOUTEN CERTIFICATION B.V. | Marloes Rossewij |
| SCHOUTEN CERTIFICATION B.V. | Roelie Witting |
| SGS BELGIUM NV (OCI) | Chris Ranschaert |
| SGS BELGIUM NV (OCI) | Els Dezuttere |
| SGS BELGIUM NV (OCI) | Eric Lecleir |
| SGS BELGIUM NV (OCI) | Kristof Vandevelde |
| SGS NEDERLAND B.V. | Eddy Heuvelink |
| SGS NEDERLAND B.V. | Ilze Jenneskens |
| SGS NEDERLAND B.V. | Pieter de Louw |
| TÜV NORD INTEGRA BVBA | Bart Bonroy |
| TÜV NORD INTEGRA BVBA | Jurgen Byl |
| TÜV NORD INTEGRA BVBA | Sabrina Daerden |
| VINCOTTE PROCERVIQ SA | Marie-Paule Doguet |
| VINCOTTE PROCERVIQ SA | Pieter Danau |