| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.01 | USD | 20251110 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1129.05 | USD | 20251110 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 889.38 | USD | 20251107 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.26 | USD | 20251107 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1051.73 | USD | 20251107 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 874.9 | USD | 20251106 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 888.56 | USD | 20251105 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1114.23 | USD | 20251105 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1128.33 | USD | 20251105 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 874.46 | USD | 20251105 |