| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong LuoHeng Chem | China national standards | MT | 337.23 | USD | 20251119 |
| Shandong LuoHeng Chem | China national standards | MT | 337.3 | USD | 20251118 |
| Shandong LuoHeng Chem | China national standards | MT | 337.45 | USD | 20251116 |
| Shandong LuoHeng Chem | China national standards | MT | 337.45 | USD | 20251115 |
| Shandong LuoHeng Chem | China national standards | MT | 337.45 | USD | 20251114 |
| Shandong LuoHeng Chem | China national standards | MT | 337.26 | USD | 20251113 |
| Shandong LuoHeng Chem | China national standards | MT | 337.26 | USD | 20251111 |
| Shandong LuoHeng Chem | China national standards | MT | 337.3 | USD | 20251110 |
| Shandong LuoHeng Chem | China national standards | MT | 337.09 | USD | 20251105 |
| Shandong LuoHeng Chem | China national standards | MT | 337.09 | USD | 20251105 |