| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.15 | USD | 20250726 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.68 | USD | 20250724 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.23 | USD | 20250723 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1119.51 | USD | 20250722 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1118.54 | USD | 20250721 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1119.49 | USD | 20250717 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1118.47 | USD | 20250716 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1118.91 | USD | 20250715 |