| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong LuoHeng Chem | China national standards | MT | 337.62 | USD | 20251129 |
| Shandong LuoHeng Chem | China national standards | MT | 337.62 | USD | 20251128 |
| Shandong LuoHeng Chem | China national standards | MT | 337.62 | USD | 20251128 |
| Shandong LuoHeng Chem | China national standards | MT | 337.67 | USD | 20251127 |
| Shandong LuoHeng Chem | China national standards | MT | 337.67 | USD | 20251127 |
| Shandong LuoHeng Chem | China national standards | MT | 337.59 | USD | 20251126 |
| Shandong LuoHeng Chem | China national standards | MT | 337.45 | USD | 20251125 |
| Shandong LuoHeng Chem | China national standards | MT | 337.35 | USD | 20251124 |
| Shandong LuoHeng Chem | China national standards | MT | 337.21 | USD | 20251121 |
| Shandong LuoHeng Chem | China national standards | MT | 337.21 | USD | 20251121 |