Amicale ESFF - Aluminium Martigny - Ampere - ASK - ATF - BMF - Brefond Calderys Carbones Cavenaghi Spa Condat CS Additive CTIF DK ELIT ELKEM EUROFUM Eurometa Europ Iron Ferry Capitain Firstalloys Foseco Frama GNR Spectro Huettenes Albertus Imerys JML KUTTNER La Fonte Ardenaise MFG Modeleur PLISSON Quartz Management RioTinto Sorelmetal Scoval Superior Graphite Wheelabrator