| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.61 | USD | 20251011 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.61 | USD | 20251010 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.38 | USD | 20251009 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.58 | USD | 20251008 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.58 | USD | 20251006 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.58 | USD | 20251001 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.17 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.57 | USD | 20250924 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |