| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Qidi Chem | China national standards | MT | 204.95 | USD | 20251205 |
| Changzhou Qidi Chem | China national standards | MT | 205.0 | USD | 20251204 |
| Changzhou Qidi Chem | China national standards | MT | 204.92 | USD | 20251201 |
| Changzhou Qidi Chem | China national standards | MT | 204.81 | USD | 20251126 |
| Changzhou Qidi Chem | China national standards | MT | 204.59 | USD | 20251121 |
| Changzhou Qidi Chem | China national standards | MT | 204.71 | USD | 20251112 |
| Changzhou Qidi Chem | China national standards | MT | 204.61 | USD | 20251111 |
| Changzhou Qidi Chem | China national standards | MT | 204.61 | USD | 20251106 |