Australia:

• Asia Pacific Seamless Tubes Ltd.
• BHP Billiton
• Promet Engineers

Austria:

• Böhler Edelstahl
• Böhler Uddeholm
• Breitenfeld Edelstahl
• INTECO
• Österreichische Kontrollbank
• PLANSEE
• SBER - Schoeller Bleckmann Edelstahlrohre
• Stahl Judenburg
• Treibacher Industrie AG
• Siemens VAI

Bahrain:

• United Stainless Steel Comp. (USCO)
  
  

Belgium:

• Industeel (Arcelor Group)
  

Brazil:

• Acesita
• CBMM
• Villares Metals (Böhler Uddeholm)
  

Canada:

• Atlas Stainless (Slater Group)
• Atlas Specialty (Slater Group)
• Bombardier
• VALE INCO
• Sandvik Canada
• Xstrata Nickel
  

Chile:

• Molymet

China:

• Changshu Walsin
• Shanghai Krupp Stainless
• Shanxi Taigang Stainless Steel
• Tsingshan Group
  

Cuba:

• Acinox

Denmark:

• Damstahl a/s

Finland:

• Outokumpu Stainless

France:

• Air Liquide
• ArcelorMittal
• Ascometal Valti (Vallourec)
• Ugitech
• Industeel (ArcelorMittal)
• Salzgitter Mannesmann Stainless Tubes (SMST - DMV Stainless)
• Faurecia Exhaust Systems

Germany:

• Thyssen Krupp Stainless
• ThyssenKrupp Nirosta (TKN)
• Ilsenburger Grobblech
• KMR Stainless
• Georgsmarienhütte
• SMS - Demag
• Schmolz + Bickenbach
• Schmiedewerk Gröditz
• Mannesmann Ferrostaal
• Butting
• ELG Haniel Gruppe (Eisenlegierungen)

Greece:

• G. Christoforidis
  

India:

• Kalyani Steel
• FACOR
• Panchmahal Steel
• Jindal Stainless
• Mukand
• Usha Martin
• Viraj Group
• Venus Wire

Italy:

• ABS
• Acciaierie Valbruna
• Cogne
• Dalmine
• Inoxtech
• S.A.M.A.
• Rivit
• Sitindustrie
• Tubificio di Terni
  

Japan:

• Daido Steel
• Kobe Steel
• Mitsui
• Nachi Fujikoshi
• JFE Steel
• Nippon Yakin Kogyo
• Sanyo
• Sumitomo Metals (Tube)
• NSSC

• BHP Billiton
• Nedstaal
• Villares Metals International

Norway:

• Scana Steel

Portugal:

• Böllinghaus

Russia:

• Petroltrans / BMP Trading
• TMK

Singapore:

• BHP Billiton

Slovakia:

• Železiarne Podbrezová

Slovenia:

• Metal Ravne
  

South Africa:

• Samancor
• Columbus
• Barloworld (Salmac)
• Iscor
  

South Korea:

• Doosan
• POSCO / POSRI
• PSS
• BNG Steel Company
• Daekyung

Spain:

• Olarra
• Aceralava
• Condesa
• Tubacex
  

Sweden:

• Outokumpu Stainless
• Fagersta Stainless
• Fundia
• Ovako Steel
• IKEA
• Sandvik Materials Technology
• Kanthal
  

Switzerland:

• ABB Power Technologies
• Ferriere di Stabio

Thailand:

• Thainox

United Arab Emirates:

• Al Nasser Industries
• ETA

Ukraine:

• Dneprospetsstal (DSS)
• Interpipe
• Centravis

United Kingdom:

• Outokumpu Stainless
• ASR - Alloy Steel Rods
• IMOA - Int. Molybdenum Ass.
• Rio Tinto
  

U.S.A:

• Carpenter
• Castle Metals
• CMC
• Elgiloy
• Allegheny Technologies
• Ryerson Tull (Integris)
• Latrobe Special Steel
• Talley Metals
• Timken
• Sandmeyer Steel
• Macsteel
• Nucor
• Special Metals (SMC)
• USAP - Universal Stainless