| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 1051.16 | USD | 20250813 |
| Shandong Junfeng | China national standards | MT | 911.0 | USD | 20250813 |
| Shandong Junfeng | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Qiangsen Chem | China national standards | MT | 925.02 | USD | 20250813 |
| Shandong Qiangsen Chem | China national standards | MT | 925.02 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1093.2 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1107.22 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1107.22 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1100.21 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1121.23 | USD | 20250813 |