| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 508.77 | USD | 20251201 |
| Shandong Yihe Chem | China national standards | MT | 515.84 | USD | 20251201 |
| Shandong Qiangsen Chem | China national standards | MT | 508.77 | USD | 20251201 |
| Shandong Yihe Chem | China national standards | MT | 537.03 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 628.9 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 508.77 | USD | 20251201 |
| Shandong Rongxin | Polyester Resin Grade | MT | 537.03 | USD | 20251201 |
| Sinopec | China national standards | MT | 635.96 | USD | 20251201 |
| Chengdu Rongjiaxin Chem | China national standards | MT | 678.36 | USD | 20251201 |
| Wuhan Hengjiu Chem | China national standards | MT | 621.83 | USD | 20251201 |