| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 539.81 | USD | 20250822 |
| Qingdao Shengze Chem | China national standards | MT | 540.07 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 540.07 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 540.07 | USD | 20250821 |
| Qingdao Shengze Chem | Polyester Grade | MT | 540.07 | USD | 20250821 |
| Qingdao Shengze Chem | Polyester Grade | MT | 539.34 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 539.34 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 539.34 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 539.53 | USD | 20250819 |
| Qingdao Shengze Chem | China national standards | MT | 539.53 | USD | 20250819 |