| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.77 | USD | 20251204 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1126.77 | USD | 20251204 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.48 | USD | 20251203 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1200.67 | USD | 20251202 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1214.79 | USD | 20251202 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1002.91 | USD | 20251202 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1125.8 | USD | 20251202 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.78 | USD | 20251202 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1215.39 | USD | 20251201 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1003.41 | USD | 20251201 |