| Business | Phone |
| Cer-Met Inc 12010 University City Blvd, Charlotte 28213 | (704) 455-2100 |
| Skamol Americas Inc 8318 Pineville Mathws Rd # 267, Charlotte 28226 | (704) 544-1015 |
| Rhi Refractories 2915 Providence Rd, Charlotte 28211 | (704) 770-0405 |
| Harbison Walker Refractories 4221 Joe St # B, Charlotte 28206 | (704) 599-6540 |