| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1128.27 | USD | 20251120 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1142.37 | USD | 20251120 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1124.04 | USD | 20251120 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 874.41 | USD | 20251120 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 874.82 | USD | 20251119 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1124.82 | USD | 20251118 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1125.45 | USD | 20251117 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1143.81 | USD | 20251117 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1129.69 | USD | 20251117 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.51 | USD | 20251117 |