| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Rongxin | Polyester Resin Grade | MT | 554.23 | USD | 20250929 |
| Zaozhuang Yitai | China national standards | MT | 633.01 | USD | 20250929 |
| Zaozhuang Yitai | China national standards | MT | 604.88 | USD | 20250929 |
| Shanghai Guoke | China national standards | MT | 738.51 | USD | 20250929 |
| Lihuayi Weiyuan Chem | China national standards | MT | 520.47 | USD | 20250929 |
| Beijing Yanshan Petro | China national standards | MT | 520.47 | USD | 20250929 |
| Shandong Yihe Chem | China national standards | MT | 527.51 | USD | 20250929 |
| Shandong Yihe Chem | China national standards | MT | 534.54 | USD | 20250929 |
| Jinan Angxin Chem | China national standards | MT | 618.94 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 506.41 | USD | 20250929 |