| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 508.84 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 513.08 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 513.08 | USD | 20251205 |
| Sinopec | China national standards | MT | 678.45 | USD | 20251205 |
| Shandong Yihe Chem | China national standards | MT | 537.11 | USD | 20251205 |
| Shandong Fusheng | China national standards | MT | 508.84 | USD | 20251205 |
| Shandong Yushuo Chem | Polyester Grade | MT | 593.65 | USD | 20251205 |
| Shandong Shuojia Chem | Polyester Grade | MT | 678.45 | USD | 20251205 |
| Sinopec | China national standards | MT | 636.05 | USD | 20251205 |
| Shandong Zhiheng | China national standards | MT | 592.94 | USD | 20251205 |