| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.02 | USD | 20251106 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.5 | USD | 20251105 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.73 | USD | 20251104 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.99 | USD | 20251103 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.8 | USD | 20251101 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.8 | USD | 20251031 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.03 | USD | 20251030 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.33 | USD | 20251029 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251028 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.79 | USD | 20251027 |