| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.23 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.17 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.37 | USD | 20250811 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.73 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.31 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.31 | USD | 20250806 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.98 | USD | 20250805 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.53 | USD | 20250804 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1118.94 | USD | 20250801 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1119.4 | USD | 20250728 |