| Business | Phone |
| Chem-Mex Industries 4587 Firestone Blvd, South Gate 90280 | (323) 563-0573 |
| Los Angeles Chemical Co 4545 Ardine St, South Gate 90280 | (323) 562-9500 |
| Granitize 11022 Vulcan St, South Gate 90280 | (562) 923-5438 |
| P Q Corp 8401 Quartz Ave, South Gate 90280 | (323) 326-1100 |