| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.96 | USD | 20250922 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.96 | USD | 20250922 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.88 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.88 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 256.03 | USD | 20250918 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 256.03 | USD | 20250918 |