| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.28 | USD | 20251121 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.06 | USD | 20251121 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.1 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.89 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.3 | USD | 20251119 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.08 | USD | 20251119 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.17 | USD | 20251118 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.39 | USD | 20251118 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.39 | USD | 20251117 |