| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chem | N220 | MT | 931.35 | USD | 20251106 |
| Shanxi Hengxin Chem | N220 | MT | 1212.96 | USD | 20251105 |
| Shanxi Hengxin Chem | N220 | MT | 931.32 | USD | 20251103 |
| Shanxi Hengxin Chem | N220 | MT | 1213.54 | USD | 20251103 |
| Shanxi Hengxin Chem | N220 | MT | 1213.32 | USD | 20251102 |
| Shanxi Hengxin Chem | N220 | MT | 1213.32 | USD | 20251031 |
| Shanxi Hengxin Chem | N220 | MT | 945.47 | USD | 20251030 |
| Shanxi Hengxin Chem | N220 | MT | 1213.59 | USD | 20251030 |
| Shanxi Hengxin Chem | N220 | MT | 1213.95 | USD | 20251029 |
| Shanxi Hengxin Chem | N220 | MT | 1213.73 | USD | 20251028 |