| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.24 | USD | 20251125 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.88 | USD | 20251124 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.4 | USD | 20251122 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.33 | USD | 20251121 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.46 | USD | 20251119 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.58 | USD | 20251118 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.73 | USD | 20251118 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.41 | USD | 20251117 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.99 | USD | 20251114 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1214.26 | USD | 20251114 |