| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | Polyester Grade | MT | 542.02 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 542.02 | USD | 20250831 |
| Nanjing Daze | China national standards | MT | 774.32 | USD | 20250831 |
| Nanjing Daze | China national standards | MT | 774.32 | USD | 20250830 |
| Qingdao Shengze Chem | Polyester Grade | MT | 542.02 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 542.02 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 542.02 | USD | 20250830 |
| Shandong Qiangsen Chem | China national standards | MT | 506.83 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 542.02 | USD | 20250829 |
| Hebei Platinum Run | China national standards | MT | 575.81 | USD | 20250829 |