| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 862.15 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 847.78 | USD | 20251209 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 876.34 | USD | 20251205 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 946.41 | USD | 20251202 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 946.88 | USD | 20251201 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 932.48 | USD | 20251127 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 917.74 | USD | 20251125 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 903.0 | USD | 20251121 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 860.9 | USD | 20251118 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.92 | USD | 20251114 |