| Business | Phone |
| Inland Steel Co 4400 Railroad Ave, East Chicago 46312 | (219) 399-5506 |
| Ispat Inland Inc 3300 Dickey Rd, East Chicago 46312 | (219) 399-1200 |
| Martin Enterprises 3210 Watling St, East Chicago 46312 | (219) 397-3286 |
| Mittal Steel Usa Indiana Hrbr 3001 Dickey Rd, East Chicago 46312 | (219) 391-2000 |