| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 947.01 | USD | 20251205 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1003.55 | USD | 20251205 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1003.77 | USD | 20251204 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 946.41 | USD | 20251202 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.79 | USD | 20251202 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1215.39 | USD | 20251201 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.88 | USD | 20251128 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.76 | USD | 20251126 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 946.38 | USD | 20251126 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.24 | USD | 20251125 |