| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| GPPC SAN D-20 | GPPC Chemical Co., Ltd. | SAN | GPPC |
| GPPC PS-350 | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |
| GPPC PS-333 | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |
| GPPC PS-350K | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |
| GPPC SAN D-12 | GPPC Chemical Co., Ltd. | SAN | GPPC |
| GPPC PS-350S | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |
| GPPC PS-316 | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |
| GPPC PS-302 | GPPC Chemical Co., Ltd. | PS (HIPS) | GPPC |