| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 512.97 | USD | 20251208 |
| Qingdao Shengze Chem | Polyester Grade | MT | 491.78 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 512.97 | USD | 20251208 |
| Shandong Jinwen Chem | China national standards | MT | 508.73 | USD | 20251208 |
| Beijing Yanshan Petro | China national standards | MT | 635.92 | USD | 20251208 |
| Shandong Fusheng | China national standards | MT | 508.73 | USD | 20251208 |
| Sinopec | China national standards | MT | 614.72 | USD | 20251208 |
| Shandong Yushuo Chem | Polyester Grade | MT | 551.13 | USD | 20251208 |
| Shandong Hualu | Polyester Resin Grade | MT | 491.78 | USD | 20251208 |
| Shandong Jinshenrun Chem | China national standards | MT | 565.26 | USD | 20251208 |