| AG de Dillinger Hüttenwerke, Alemania |
| ALLVAC SC, Richburg, EEUU |
| ALTA Steel, Edmonton, Canadá |
| ALUSUISSE, Chippis, Suiza |
| ANGANG, China |
| ARBED, Differdange, Luxemburgo |
| Aubert & Duval, Francia |
| Badische Stahlwerke, Kehl, Alemania |
| Berndorf Band, Austria |
| BGH Edelstahl Freital GmbH, Alemania |
| Böhler Edelstahl, Kapfenberg, Austria |
| BUDERUS Edelstahl, Wetzlar, Alemania |
| Changwon Special Steel, Corea del sur |
| Chapparal Steel, EEUU |
| Charter Steel, Saukville WI, EEUU |
| China Steel Corporation (CSC), Taiwan |
| Cockerill - Sambre, Bélgica |
| Corus Ijmuiden, Países Bajos |
| Corus Stahl Service Center, Gelsenkirchen, Alemania |
| Dalian Steel Rolling Mill, China |
| EBG Ges. f. elektromagn. Werkstoffe, Bochum, Alemania |
| EKO Stahl, Eisenhüttenstadt, Alemania |
| EWS – Edelstahlwerke Südwestfalen, Siegen, Alemania |
| Fagersta Stainless AB, Suecia |
| Friedrichs KOCKS GmbH, Hilden, Alemania |
| FUNDIA Nedstaal, Países Bajos |
| Fundia Wire Oy AB, Dalsbruk, Finlandia |
| Gerdau Acos Finos Piratini, Brasil |
| GFW (Ges. für Warmumformung), Witten, Alemania |
| HOESCH Hohenlimburg, Hagen, Alemania |
| HOOGOVENS Ijmuiden, Países Bajos |
| Ilsenburger Grobblech GmbH, Ilsenburg, Alemania |
| ILVA Turin (actualmente A.S.T.), Italia |
| IMPHY S.A., Francia |
| ISPAT Hamburger Stahlwerke, Alemania |
| ISPAT, Kazajstán |
| ISPAT SIDBEC, Longueuil works, Canadá |
| ISPAT Walzdraht Hochfeld GmbH, Alemania |
| Jupiter LTD, Kastroma, Rusia |
| KRUPP HOESCH Stahl AG, Bochum, Alemania |
| Mannesmann Röhrenwerke, Zeithain, Alemania |
| Mannesmannröhren Werke AG, Mülheim (Rolling Mill), Alemania |
| Nippon Steel (NSC) Hikari works, Japón |
| NLKM, Rusia |
| North American Stainless Steel, EEUU |
| NSC Muroran works, Japón |
| NUCOR Corp., Nebraska, EEUU |
| Odermath Stahlwerke, Monheim, Alemania |
| OVAKO Suecia |
| POSCO, Pohang Iron and Steel, Corea del sur |
| Preussag Stahl AG, Salzgitter, Alemania |
| Rasselstein Hoesch GmbH, Plant Andernach, Alemania |
| Reiner Brach GmbH, Bremen, Alemania |
| REPUBLIC Eng. Steel, Lackawana, EEUU |
| Republic Engineered Products LLC, Lorain, EEUU |
| Salzgitter Flachstahl GmbH, Salzgitter, Alemania |
| Schleifenbaum & Steinmetz, Siegen, Alemania |
| Shanghai BAOSTEEL Group Corp., China |
| Shougang Corp., Beijing, China |
| SIDBEC-DOSCO (ISPAT), Canadá |
| Siderar Argentinia, San Nicdos, Argentina |
| SKET Magdeburg, Alemania |
| SMS Demag AG, Hilchenbach, Alemania |
| SMS-Meer |
| Stahlwerk Annahütte Max Aicher GmbH, Hammerau, Alemania |
| Stelco, Hilton works, Hamilton, Canadá |
| TECNAR, Canadá |
| Thyssen Krupp Stahl AG, Duisburg, Alemania |
| THYSSEN Nedstaal B.V., Países Bajos |
| Thyssen Schweißtechnik, Hamm, Alemania |
| THYSSEN Stahl AG Duisburg, Alemania |
| ThyssenKrupp Stahl AG, Bochum, Alemania |
| ThyssenKrupp Stahl AG, Bruckhausen, Alemania |
| Timken Latrobe |
| Tong Hua, China |
| USS Kobe, Loraine, EEUU |
| Vallourec & Mannesmann Tubes, Francia |
| Vallourec & Mannesmann Tubes, Düsseldorf - Rath, Alemania |
| Vallourec & Mannesmann Tubes, Düsseldorf-Reisholz, Alemania |
| VALTI, Francia |
| VALTI, Krefeld, Alemania |
| VOEST Alpine, Linz, Austria |
| von Moos Stahl AG, Luzern, Suiza |
| Walter Patz Stahlservicecenter Mudersbach, Alemania |
| WRG Wälzlagerrohr GmbH, Alemania |
| WUHAN Iron & Steel (WISCO), China |
| Xing Cheng, China |
