| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Baipo Chem | China national standards | MT | 344.74 | USD | 20251127 |
| Shijiazhuang Baipo Chem | China national standards | MT | 340.41 | USD | 20251126 |
| Shijiazhuang Baipo Chem | China national standards | MT | 340.27 | USD | 20251125 |
| Shijiazhuang Baipo Chem | China national standards | MT | 337.35 | USD | 20251124 |
| Shijiazhuang Baipo Chem | China national standards | MT | 337.21 | USD | 20251121 |
| Shijiazhuang Baipo Chem | China national standards | MT | 337.07 | USD | 20251120 |
| Shijiazhuang Baipo Chem | China national standards | MT | 341.46 | USD | 20251119 |
| Shijiazhuang Baipo Chem | China national standards | MT | 341.54 | USD | 20251118 |
| Shijiazhuang Baipo Chem | China national standards | MT | 341.73 | USD | 20251117 |
| Shijiazhuang Baipo Chem | China national standards | MT | 341.69 | USD | 20251114 |