| Vendor | Spec | Unit | Price | Currency | Date |
| WengFu DaZhou Chemical Co., Ltd. | 85% | MT | 1031.47 | USD | 20251209 |
| WengFu DaZhou Chemical Co., Ltd. | 85% | MT | 1031.82 | USD | 20251205 |
| WengFu DaZhou Chemical Co., Ltd. | 85% | MT | 1030.11 | USD | 20251111 |
| WengFu DaZhou Chemical Co., Ltd. | 85% | MT | 1030.1 | USD | 20251103 |
| WengFu DaZhou Chemical Co., Ltd. | 85% | MT | 1028.07 | USD | 20251013 |