| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251128 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.25 | USD | 20251127 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.01 | USD | 20251126 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.58 | USD | 20251125 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1016.27 | USD | 20251124 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.87 | USD | 20251122 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.87 | USD | 20251121 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.44 | USD | 20251120 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1015.92 | USD | 20251119 |