| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.21 | USD | 20251008 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.21 | USD | 20251006 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.06 | USD | 20251006 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.06 | USD | 20251001 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.21 | USD | 20251001 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 421.63 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.52 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.52 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 421.63 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.2 | USD | 20250924 |