| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.17 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.24 | USD | 20251027 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.02 | USD | 20251023 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.82 | USD | 20251023 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.76 | USD | 20251021 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.7 | USD | 20251020 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.52 | 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 |