| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.55 | USD | 20251105 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.78 | USD | 20251104 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.04 | USD | 20251103 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.86 | USD | 20251101 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.86 | USD | 20251031 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.09 | USD | 20251030 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.39 | USD | 20251029 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.2 | USD | 20251028 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.84 | USD | 20251027 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.16 | USD | 20251024 |