| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.51 | USD | 20251107 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.28 | USD | 20251107 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.12 | USD | 20251106 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.34 | USD | 20251106 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.13 | USD | 20251105 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.92 | USD | 20251105 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.01 | USD | 20251104 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.22 | USD | 20251104 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.33 | USD | 20251103 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.11 | USD | 20251103 |