| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.71 | USD | 20251201 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 324.91 | USD | 20251128 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 324.96 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.6 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.6 | USD | 20251127 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 988.76 | USD | 20251126 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.5 | USD | 20251126 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.5 | USD | 20251126 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 324.88 | USD | 20251126 |