| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.6 | USD | 20251201 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.17 | USD | 20251128 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.32 | USD | 20251127 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.07 | USD | 20251126 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.64 | USD | 20251125 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1023.33 | USD | 20251124 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.93 | USD | 20251122 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.93 | USD | 20251121 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.49 | USD | 20251120 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1022.97 | USD | 20251119 |