| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2180.89 | USD | 20250901 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2152.75 | USD | 20250901 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2149.24 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2177.33 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2149.24 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2150.05 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2178.16 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2150.05 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2150.05 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2145.23 | USD | 20250822 |