| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.41 | USD | 20251211 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.74 | USD | 20251210 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.01 | USD | 20251210 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.63 | USD | 20251209 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.68 | USD | 20251208 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.77 | USD | 20251207 |