| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1049.19 | USD | 20251013 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 887.24 | USD | 20251013 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 929.49 | USD | 20251013 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 928.95 | USD | 20251012 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 886.72 | USD | 20251010 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 928.95 | USD | 20251010 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 886.05 | USD | 20251009 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 928.24 | USD | 20251009 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1111.08 | USD | 20251009 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1097.02 | USD | 20251009 |