| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 247.72 | USD | 20251010 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 235.05 | USD | 20251010 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 247.72 | USD | 20251010 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 237.69 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 237.69 | USD | 20251009 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 244.88 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 244.88 | USD | 20250930 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 237.52 | USD | 20250928 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 253.32 | USD | 20250924 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 253.32 | USD | 20250924 |