| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 844.21 | USD | 20250901 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 844.71 | USD | 20250831 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 844.71 | USD | 20250829 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 844.32 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 843.79 | USD | 20250827 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 842.84 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 843.16 | USD | 20250825 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 841.27 | USD | 20250824 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 841.27 | USD | 20250822 |