| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.06 | USD | 20251121 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 394.89 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 394.89 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 987.24 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 324.38 | USD | 20251120 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.08 | USD | 20251119 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.08 | USD | 20251119 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 987.92 | USD | 20251118 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.17 | USD | 20251118 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 324.6 | USD | 20251118 |