| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.55 | USD | 20251202 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1045.29 | USD | 20251202 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.79 | USD | 20251201 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1045.8 | USD | 20251201 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 411.26 | USD | 20251201 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 411.14 | USD | 20251127 |
| 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 |