| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 394.06 | USD | 20251001 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.52 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 323.25 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 323.25 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 983.81 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.52 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.52 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 435.69 | USD | 20250926 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 394.05 | USD | 20250924 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 323.68 | USD | 20250924 |