| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251011 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251010 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1075.92 | USD | 20251009 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.63 | USD | 20251008 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.63 | USD | 20251006 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.63 | USD | 20251001 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1075.16 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1075.16 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.6 | USD | 20250924 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1075.86 | USD | 20250922 |