| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1195.97 | USD | 20250901 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1194.02 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1194.47 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1194.47 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.79 | USD | 20250822 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1192.36 | USD | 20250821 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1190.74 | USD | 20250820 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.16 | USD | 20250819 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.78 | USD | 20250818 |