| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.16 | USD | 20251015 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.78 | USD | 20251014 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.98 | USD | 20251013 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251012 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251011 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251010 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1012.63 | USD | 20251009 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251008 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.3 | USD | 20250930 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1012.81 | USD | 20250929 |