| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1079.27 | USD | 20251027 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1078.71 | USD | 20251023 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1078.53 | USD | 20251021 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1077.87 | USD | 20251020 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1078.24 | USD | 20251017 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1077.95 | USD | 20251016 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1077.54 | USD | 20251015 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1077.36 | USD | 20251013 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251012 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251011 |