| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.44 | USD | 20251012 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.44 | USD | 20251011 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.44 | USD | 20251010 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.66 | USD | 20251009 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.34 | USD | 20251008 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.34 | USD | 20250930 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1019.85 | USD | 20250929 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1018.95 | USD | 20250928 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1018.95 | USD | 20250927 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1018.95 | USD | 20250926 |