| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 975.28 | USD | 20251205 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 918.16 | USD | 20251202 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 911.54 | USD | 20251201 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 897.16 | USD | 20251127 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 868.33 | USD | 20251125 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 832.45 | USD | 20251121 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.56 | USD | 20251118 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.92 | USD | 20251114 |