| Business | Phone |
| Advance International Trading 1215 Executive Dr W 109, Richardson 75081 | (972) 234-8333 |
| Allwin Trading Inc 1405 Exchange Dr, Richardson 75081 | (972) 889-0309 |
| Ferro Trading 1701 N Greenville Ave, Richardson 75081 | (972) 792-8800 |
| Regent Trading 336 Melrose Dr, Richardson 75080 | (972) 238-8035 |