| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 463.95 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 407.96 | USD | 20250918 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 464.23 | USD | 20250918 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |