| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 579.48 | USD | 20251210 |
| Shandong Mengkanda Chem | China national standards | MT | 452.28 | USD | 20251210 |
| Beijing Yanshan Petro | China national standards | MT | 636.02 | USD | 20251210 |
| Shandong Yushuo Chem | Polyester Grade | MT | 551.21 | USD | 20251210 |
| Shandong Fusheng | China national standards | MT | 508.81 | USD | 20251210 |
| Guangzhou Tianyue Chem | Polyester Grade | MT | 664.28 | USD | 20251210 |
| CNPC | China national standards | MT | 637.43 | USD | 20251210 |
| Shandong Jinshenrun Chem | China national standards | MT | 565.35 | USD | 20251210 |
| Shandong Shuojia Chem | China national standards | MT | 551.21 | USD | 20251210 |
| Shandong Zhiheng | China national standards | MT | 592.91 | USD | 20251210 |