| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 529.74 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 529.74 | USD | 20251130 |
| Shandong Jinshenrun Chem | China national standards | MT | 565.06 | USD | 20251130 |
| Jinan Qi Mat | China national standards | MT | 522.68 | USD | 20251130 |
| Shandong Hualu | Polyester Resin Grade | MT | 522.68 | USD | 20251130 |
| Sinopec | China national standards | MT | 678.07 | USD | 20251130 |
| Jinan Jinrihe Chem | China national standards | MT | 579.19 | USD | 20251130 |
| Qingdao Shengze Chem | Polyester Grade | MT | 529.74 | USD | 20251130 |
| Qingdao Shengze Chem | Polyester Resin Grade | MT | 529.74 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 529.74 | USD | 20251129 |