| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chem | N220 | MT | 1214.79 | USD | 20251202 |
| Shanxi Hengxin Chem | N220 | MT | 1215.39 | USD | 20251201 |
| Shanxi Hengxin Chem | N220 | MT | 1214.88 | USD | 20251128 |
| Shanxi Hengxin Chem | N220 | MT | 946.38 | USD | 20251126 |
| Shanxi Hengxin Chem | N220 | MT | 1214.76 | USD | 20251126 |
| Shanxi Hengxin Chem | N220 | MT | 1214.24 | USD | 20251125 |
| Shanxi Hengxin Chem | N220 | MT | 1213.88 | USD | 20251124 |
| Shanxi Hengxin Chem | N220 | MT | 1213.4 | USD | 20251122 |
| Shanxi Hengxin Chem | N220 | MT | 945.33 | USD | 20251121 |
| Shanxi Hengxin Chem | N220 | MT | 1213.46 | USD | 20251119 |