| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 450.4 | USD | 20251010 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 393.8 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 450.06 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1040.76 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1041.45 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 450.36 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 394.06 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250928 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 449.74 | USD | 20250928 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 450.34 | USD | 20250924 |