| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 917.25 | USD | 20250806 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 917.8 | USD | 20250805 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 910.8 | USD | 20250805 |