| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| STYRON™ 404 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 421 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ 484 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ H9152T | Trinseo | PS (HIPS) | STYRON™ |
| STYRON™ 693 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 610 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 5050 | Trinseo | PS (HIPS) | STYRON™ |
| STYRON™ 486M | Trinseo | PS (HIPS) | STYRON™ |
| STYRON™ 487R | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ 666D | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 660 | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 685D | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 685DL | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 685F | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 670 | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 668 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 678D | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 666H | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 636 BT | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 685D | Trinseo | PS (GPPS) | STYRON™ |