| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.47 | USD | 20251030 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.59 | USD | 20251030 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.95 | USD | 20251029 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.73 | USD | 20251028 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.58 | USD | 20251028 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.3 | USD | 20251027 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1212.5 | USD | 20251024 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1212.67 | USD | 20251023 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 972.46 | USD | 20251022 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1212.05 | USD | 20251022 |