| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.12 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.26 | USD | 20250811 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.25 | USD | 20250811 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.5 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.51 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 784.92 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.9 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.21 | USD | 20250806 |