| Company (majority shareholding) | Website | Country | Business Area |
|---|---|---|---|
| Terninox S.p.A. | www | Italy | Stainless Global |
| ThyssenKrupp Acciai Speciali Terni S.p.A. | www | Italy | Stainless Global |
| ThyssenKrupp Mexinox S.A. de C.V. | www | Mexico | Stainless Global |
| Tubificio di Terni S.p.A. | www | Italy | Stainless Global |
