| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.54 | USD | 20251128 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.85 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.6 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.5 | USD | 20251126 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.75 | USD | 20251126 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.57 | USD | 20251125 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.34 | USD | 20251125 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.22 | USD | 20251124 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.45 | USD | 20251124 |