| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.53 | USD | 20250822 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.02 | USD | 20250821 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.63 | USD | 20250820 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.99 | USD | 20250819 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.52 | USD | 20250818 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.82 | USD | 20250816 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.82 | USD | 20250815 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.3 | USD | 20250814 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.12 | USD | 20250813 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.15 | USD | 20250812 |