| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 791.08 | USD | 20251129 |
| Shandong Yeyang Chem | China national standards | MT | 776.96 | USD | 20251129 |
| CNPC | China national standards | MT | 805.21 | USD | 20251129 |
| Qingdao Shengze Chem | China national standards | MT | 713.39 | USD | 20251129 |
| Luxi Chem | China national standards | MT | 889.97 | USD | 20251129 |
| Luxi Chem | China national standards | MT | 762.83 | USD | 20251129 |
| Shandong Xima | China national standards | MT | 748.7 | USD | 20251129 |
| Liaocheng Yuanze Chem | China national standards | MT | 861.72 | USD | 20251129 |
| Shandong Energy | China national standards | MT | 791.08 | USD | 20251129 |
| Shandong Energy | China national standards | MT | 1017.11 | USD | 20251129 |