| Company | Member Type | Country | More details |
|---|---|---|---|
| CARPROMETAL SPA | Ordinary Member | Italy | |
| CASIER RECYCLING NV | Ordinary Member | Belgium | |
| CASS, INC. | Gold Member | United States | |
| CATERPILLAR S.A.R.L. INDUSTRIAL MARKETS | Gold Member | Switzerland | |
| CDC EUROPE ASIA SAS | Gold Member | France | |
| CEKREZI METAL LTD | Gold Member | Albania | |
| CELL-DATA COMMODITY SRL | Ordinary Member | Italy | |
| CELLMARK METALS | Ordinary Member | Sweden | |
| CENTRAL EUROPEAN SCRAP TRADING KFT | Gold Member | Hungary | |
| CENTURY ALUMINIUM MFG CO LTD | Gold Member | India | |
| CFBOOTH LIMITED | Gold Member | United Kingdom | |
| CHATARRAS MIGUEL HERNANDEZ,S.L | Ordinary Member | Spain | |
| CHIHO ENVIRONMENTAL GROUP | Gold Member | China | |
| CHILANGA AB | Ordinary Member | Sweden | |
| CHINA METALLURGICAL INFORMATION AND STANDARDIZATION INSTITUTE | Ordinary Member | China | |
| CI ACA ALUMINIOS COBRES Y ACEROS SAS | Ordinary Member | Colombia | |
| CINDA HESHENG CERTIFICATION CONSULTING CO LIMITED | Ordinary Member | China | |
| CITY METALS RECYCLING LTD | Gold Member | United Kingdom | |
| CMR GREEN TECHNOLOGIES LTD | Gold Member | India | |
| CMRA - CHINA NONFERROUS METALS INDUSTRY ASSOCIATION RECYCLING METAL BRANCH | Member Federation | China | |
| CNA METALS GROUP | Gold Member | United States | |
| CO.MET.FER. SPA | Ordinary Member | Italy | |
| COHEN BROTHERS, INC. | Gold Member | United States | |
| COM.STEEL SPA | Ordinary Member | Italy | |
| COMBINED METAL INDUSTRIES | Gold Member | Canada |