| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1125.62 | USD | 20250901 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1123.78 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1124.21 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1124.21 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.69 | USD | 20250822 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1122.22 | USD | 20250821 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1120.7 | USD | 20250820 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.09 | USD | 20250819 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.67 | USD | 20250818 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1121.44 | USD | 20250814 |