| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Rongxin | Polyester Resin Grade | MT | 548.65 | USD | 20251105 |
| Shandong Qiangsen Chem | China national standards | MT | 507.75 | USD | 20251105 |
| Shanghai Guoke | China national standards | MT | 698.16 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 507.75 | USD | 20251105 |
| Sinopec | China national standards | MT | 613.53 | USD | 20251105 |
| Sinopec | China national standards | MT | 634.69 | USD | 20251105 |
| Beijing Yanshan Petro | China national standards | MT | 634.69 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 627.64 | USD | 20251105 |
| CNPC | China national standards | MT | 636.1 | USD | 20251105 |
| Shandong Jinwen Chem | China national standards | MT | 507.75 | USD | 20251105 |