| Vendor | Spec | Unit | Price | Currency | Date |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1054.76 | USD | 20250922 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 928.19 | USD | 20250922 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1026.64 | USD | 20250922 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1096.95 | USD | 20250922 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1111.02 | USD | 20250922 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1026.32 | USD | 20250920 |
| Wengfu (GROUP) Co., Ltd. | Industrial Grade;优等级 | MT | 1054.44 | USD | 20250919 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 927.9 | USD | 20250919 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1026.32 | USD | 20250919 |
| Wengfu (GROUP) Co., Ltd. | 85% | MT | 1110.67 | USD | 20250919 |