| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| STYRON™ 414 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ 421 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ 478 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ H9152T | Trinseo | PS (HIPS) | STYRON™ |
| STYRON™ 634 | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 6500 | Trinseo | PS (IRPS) | STYRON™ |
| STYRON™ 656D | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 610 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 5050 | Trinseo | PS (HIPS) | STYRON™ |
| STYRON™ 487 | Americas Styrenics LLC | PS (HIPS) | STYRON™ |
| STYRON™ 660 | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 680A | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 678E | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 670 | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 665 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 668 | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 678D | Americas Styrenics LLC | PS (GPPS) | STYRON™ |
| STYRON™ 636 BT | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 2678 MED | Trinseo | PS (GPPS) | STYRON™ |
| STYRON™ 686E | Trinseo | PS (GPPS) | STYRON™ |