| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1058.48 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 1143.16 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 818.56 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 790.34 | USD | 20251028 |
| Wanhua Yantai | China national standards | MT | 846.79 | USD | 20251028 |
| Wanhua Yantai | China national standards | MT | 896.18 | USD | 20251028 |
| Shandong Jinwen Chem | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Kaitai Petro | China national standards | MT | 889.13 | USD | 20251028 |
| Shandong Kaitai Petro | China national standards | MT | 917.35 | USD | 20251028 |
| Shandong Laya Chem | China national standards | MT | 790.34 | USD | 20251028 |