| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chem | N220 | MT | 962.0 | USD | 20251211 |
| Shanxi Hengxin Chem | N220 | MT | 1004.44 | USD | 20251211 |
| Shanxi Hengxin Chem | N220 | MT | 1003.49 | USD | 20251210 |
| Shanxi Hengxin Chem | N220 | MT | 961.09 | USD | 20251210 |
| Shanxi Hengxin Chem | N220 | MT | 1003.21 | USD | 20251209 |
| Shanxi Hengxin Chem | N220 | MT | 1003.34 | USD | 20251208 |
| Shanxi Hengxin Chem | N220 | MT | 947.01 | USD | 20251205 |
| Shanxi Hengxin Chem | N220 | MT | 1003.55 | USD | 20251205 |
| Shanxi Hengxin Chem | N220 | MT | 1003.77 | USD | 20251204 |
| Shanxi Hengxin Chem | N220 | MT | 946.41 | USD | 20251202 |