| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.31 | USD | 20250925 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.31 | USD | 20250924 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.31 | USD | 20250923 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.6 | USD | 20250922 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.29 | USD | 20250920 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.29 | USD | 20250919 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.91 | USD | 20250918 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.74 | USD | 20250916 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.32 | USD | 20250915 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.85 | USD | 20250913 |