| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.2 | USD | 20250829 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.02 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.33 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.02 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 393.77 | USD | 20250827 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1040.67 | USD | 20250827 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 393.77 | USD | 20250827 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 393.32 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1039.5 | USD | 20250826 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 393.32 | USD | 20250826 |