| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.77 | USD | 20251206 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.03 | USD | 20251206 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.03 | USD | 20251205 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.77 | USD | 20251205 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 424.0 | USD | 20251203 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.74 | USD | 20251203 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.76 | USD | 20251202 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.51 | USD | 20251202 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.97 | USD | 20251201 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.71 | USD | 20251201 |