| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1021.2 | USD | 20251015 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1020.82 | USD | 20251014 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1021.03 | USD | 20251013 |
| 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 |