| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| Pyramid™ PEI II2000 | Polymics, Ltd. | PEI | Pyramid™ PEI |
| Pyramid™ PEI II2150 | Polymics, Ltd. | PEI | Pyramid™ PEI |
| Pyramid™ PEI II2230 | Polymics, Ltd. | PEI | Pyramid™ PEI |
| Pyramid™ PEI II2250 | Polymics, Ltd. | PEI | Pyramid™ PEI |