| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | Polyester Grade | MT | 540.07 | USD | 20250821 |
| Shandong Fusheng | China national standards | MT | 701.39 | USD | 20250821 |
| Shandong Fusheng | China national standards | MT | 701.39 | USD | 20250821 |
| Shandong Qiangsen Chem | China national standards | MT | 505.0 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 505.0 | USD | 20250821 |
| Shandong Jinwen Chem | China national standards | MT | 505.0 | USD | 20250821 |
| Nanjing Daze | China national standards | MT | 771.53 | USD | 20250821 |
| Shandong Mengkanda Chem | China national standards | MT | 532.33 | USD | 20250820 |
| Qingdao Shengze Chem | Polyester Grade | MT | 539.34 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 539.34 | USD | 20250820 |