| Vendor | Spec | Unit | Price | Currency | Date |
| Befar | China national standards | MT | 1157.28 | USD | 20251118 |
| Shandong Zhiheng | China national standards | MT | 1171.39 | USD | 20251118 |
| Shandong Zhiheng | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Yeyang Chem | China national standards | MT | 1241.96 | USD | 20251118 |
| Shandong Hongyang Chem | China national standards | MT | 1121.99 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1174.21 | USD | 20251118 |
| Befar | China national standards | MT | 889.63 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 988.48 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 1059.08 | USD | 20251117 |
| Shandong Hongyang Chem | China national standards | MT | 1189.0 | USD | 20251117 |