| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1215.31 | USD | 20251208 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1126.28 | USD | 20251208 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.34 | USD | 20251208 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 876.34 | USD | 20251205 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1201.43 | USD | 20251205 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.55 | USD | 20251205 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1215.56 | USD | 20251205 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1126.77 | USD | 20251204 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1201.7 | USD | 20251204 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.77 | USD | 20251204 |