| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 916.15 | USD | 20251017 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 915.56 | USD | 20251015 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 929.49 | USD | 20251013 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 943.02 | USD | 20251010 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 942.31 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1006.23 | USD | 20250924 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1005.54 | USD | 20250922 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1005.23 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1005.84 | USD | 20250918 |