| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.65 | USD | 20251127 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1045.51 | USD | 20251127 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 410.87 | USD | 20251125 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.34 | USD | 20251125 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1044.81 | USD | 20251125 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1044.09 | USD | 20251121 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.02 | USD | 20251121 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 410.58 | USD | 20251121 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1044.37 | USD | 20251118 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.14 | USD | 20251118 |