| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Qi Mat | China national standards | MT | 522.68 | USD | 20251128 |
| Shandong Qiangsen Chem | China national standards | MT | 508.55 | USD | 20251128 |
| Sinopec | China national standards | MT | 614.5 | USD | 20251128 |
| Shandong Zhiheng | China national standards | MT | 592.61 | USD | 20251128 |
| CNOOC | Polyester Grade | MT | 649.82 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 628.63 | USD | 20251128 |
| Shandong Hongshuo Chem | China national standards | MT | 494.43 | USD | 20251128 |
| Sinopec | China national standards | MT | 678.07 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 635.69 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 607.44 | USD | 20251128 |