| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.52 | USD | 20251020 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.7 | USD | 20251020 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.65 | USD | 20251017 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.84 | USD | 20251017 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.73 | USD | 20251016 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.54 | USD | 20251016 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.39 | USD | 20251015 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.56 | USD | 20251015 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.33 | USD | 20251013 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.49 | USD | 20251013 |