| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.75 | USD | 20250819 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 771.15 | USD | 20250818 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.99 | USD | 20250814 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.85 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.11 | USD | 20250812 |
| 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 | 770.9 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 770.21 | USD | 20250806 |