| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong LuoHeng Chem | China national standards | MT | 1928.27 | USD | 20251011 |
| Shandong LuoHeng Chem | China national standards | MT | 1928.27 | USD | 20251010 |
| Shandong LuoHeng Chem | China national standards | MT | 1928.27 | USD | 20251010 |
| Shandong LuoHeng Chem | China national standards | MT | 1926.81 | USD | 20251009 |
| Shandong LuoHeng Chem | China national standards | MT | 1927.16 | USD | 20250929 |
| Shandong LuoHeng Chem | China national standards | MT | 1925.46 | USD | 20250928 |