| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.28 | USD | 20250806 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.89 | USD | 20250805 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.48 | USD | 20250804 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.04 | USD | 20250803 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.04 | USD | 20250801 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.07 | USD | 20250731 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.82 | USD | 20250730 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1013.83 | USD | 20250729 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.45 | USD | 20250728 |