| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Chem | Polyester Resin Grade | MT | 526.28 | USD | 20251123 |
| Jinan Jinrihe Chem | China national standards | MT | 578.48 | USD | 20251123 |
| CNOOC | China national standards | MT | 564.37 | USD | 20251123 |
| Shandong Jinshenrun Chem | China national standards | MT | 578.48 | USD | 20251123 |
| Qingdao Shengze Chem | Polyester Grade | MT | 529.1 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 529.1 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 514.99 | USD | 20251123 |
| Sinopec | China national standards | MT | 677.25 | USD | 20251123 |
| Hualu Holdings | China national standards | MT | 677.25 | USD | 20251122 |
| Shandong Yuanhe Chem | Polyester Grade | MT | 691.36 | USD | 20251122 |