| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 844.99 | USD | 20251013 |
| Shandong Xima | China national standards | MT | 788.65 | USD | 20251013 |
| Shandong Qiangsen Chem | China national standards | MT | 816.82 | USD | 20251013 |
| Shandong Laya Chem | China national standards | MT | 788.65 | USD | 20251013 |
| Shandong Yeyang Chem | China national standards | MT | 788.65 | USD | 20251013 |
| Shandong Yeyang Chem | China national standards | MT | 816.82 | USD | 20251013 |
| Shandong Jinwen Chem | China national standards | MT | 985.82 | USD | 20251013 |
| Wanhua Chem | China national standards | MT | 1013.4 | USD | 20251012 |
| Sinopec | China national standards | MT | 844.5 | USD | 20251012 |
| Wanhua Yantai | China national standards | MT | 844.5 | USD | 20251012 |