| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Yudeshun Chem | China national standards | MT | 1383.09 | USD | 20251028 |
| Xiamen Yudeshun Chem | China national standards | MT | 1381.64 | USD | 20251021 |
| Xiamen Yudeshun Chem | China national standards | MT | 1380.81 | USD | 20251020 |
| Xiamen Yudeshun Chem | China national standards | MT | 1380.38 | USD | 20251015 |
| Xiamen Yudeshun Chem | China national standards | MT | 1379.87 | USD | 20251014 |
| Xiamen Yudeshun Chem | China national standards | MT | 1380.15 | USD | 20251013 |
| Xiamen Yudeshun Chem | China national standards | MT | 1379.35 | USD | 20251011 |
| Xiamen Yudeshun Chem | China national standards | MT | 1379.35 | USD | 20251010 |
| Xiamen Yudeshun Chem | China national standards | MT | 1379.21 | USD | 20250930 |
| Xiamen Yudeshun Chem | China national standards | MT | 1379.17 | USD | 20250924 |