Връзки
Viohalco - www.viohalco.gr
Halcor SA - www.halcor.gr
Fitco SA - www.fitco.gr
Bridgnorth Aluminium - www.starlitho.co.uk
Българска Асоциация на Металургичната Индустрия - www.bcm-bg.com
Hellenic Copper Development Institute - www.copperalliance.eu/gr
European Copper Institute - www.copperalliance.eu
International Copper Alliance - www.copperalliance.org