| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 541.83 | USD | 20250915 |
| Shandong Huize Chem | Polyester Resin Grade | MT | 605.16 | USD | 20250915 |
| Jinan Qiwei Chem | China national standards | MT | 575.6 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 541.83 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 541.83 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 541.83 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 541.83 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 506.64 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 506.64 | USD | 20250915 |
| Shandong Jinwen Chem | China national standards | MT | 506.64 | USD | 20250915 |