| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Zhengyuan Hydro | China national standards | MT | 325.8 | USD | 20260104 |
| Shandong Hualu | China national standards | MT | 351.41 | USD | 20251231 |
| Shandong Hualu | China national standards | MT | 355.38 | USD | 20251230 |
| Shandong Hualu | China national standards | MT | 355.38 | USD | 20251230 |
| Shandong Hualu | China national standards | MT | 359.73 | USD | 20251229 |
| Hebei Zhengyuan Hydro | China national standards | MT | 329.87 | USD | 20251229 |
| Hebei Zhengyuan Hydro | China national standards | MT | 329.87 | USD | 20251229 |
| Shandong Hualu | China national standards | MT | 359.73 | USD | 20251229 |
| Shandong Shuntian Chem | China national standards | MT | 326.74 | USD | 20251225 |
| Shandong Shuntian Chem | China national standards | MT | 339.53 | USD | 20251211 |