![Jef Roos](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Jef Roos is a professional who has held director positions at ArcelorMittal Luxembourg SA, Sidmar Nv, and Aperam Stainless Belgium NV.
He was also a director at Cegeka NV from 2008 to 2011.
Dr. Roos holds a doctorate degree from Colorado School of Mines.
| Sociétés | Poste | Fin |
|---|---|---|
| ARBED | Directeur/Membre du Conseil | - |
Aperam Stainless Belgium NV
 Aperam Stainless Belgium NV Other Metals/MineralsNon-Energy Minerals Manufactures non-ferrous metal scrap | Directeur/Membre du Conseil | - |
Sidmar Nv
 Sidmar Nv SteelNon-Energy Minerals Produces steel | Directeur/Membre du Conseil | - |
Cegeka NV
 Cegeka NV Information Technology ServicesTechnology Services Provides information technology, consulting, AI, data and cloud services | Directeur/Membre du Conseil | - |
Actives
Inactives
Sociétés cotées
Entreprise privées
| Entreprise privées | 5 |
|---|---|
ArcelorMittal Luxembourg SA
 ArcelorMittal Luxembourg SA SteelNon-Energy Minerals Manufactures steel and steel products | Non-Energy Minerals |
Sidmar Nv
Sidmar Nv SteelNon-Energy Minerals Produces steel | Non-Energy Minerals |
Aperam Stainless Belgium NV
Aperam Stainless Belgium NV Other Metals/MineralsNon-Energy Minerals Manufactures non-ferrous metal scrap | Non-Energy Minerals |
Cegeka NV
Cegeka NV Information Technology ServicesTechnology Services Provides information technology, consulting, AI, data and cloud services | Technology Services |
Colorado School of Mines
 Colorado School of Mines Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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