| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1201.26 | USD | 20251201 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1126.36 | USD | 20251201 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.84 | USD | 20251129 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1214.88 | USD | 20251128 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1200.75 | USD | 20251128 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 875.84 | USD | 20251128 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1126.04 | USD | 20251127 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1125.77 | USD | 20251126 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1200.63 | USD | 20251126 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1125.77 | USD | 20251126 |