| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 188.82 | USD | 20250801 |
| Shandong Fusheng | China national standards | MT | 209.8 | USD | 20250801 |
| Henan Huiyi | China national standards | MT | 279.74 | USD | 20250731 |
| Shandong Qiangsen Chem | China national standards | MT | 188.83 | USD | 20250731 |
| Henan Huiyihai | China national standards | MT | 272.75 | USD | 20250731 |
| Chizhou Xinyu Chem | China national standards | MT | 265.76 | USD | 20250731 |
| Henan Huiyihai | China national standards | MT | 272.95 | USD | 20250730 |
| Henan Huiyi | China national standards | MT | 279.95 | USD | 20250730 |
| Suzhou Zhaohua Chem | China national standards | MT | 349.94 | USD | 20250730 |
| Chizhou Xinyu Chem | China national standards | MT | 265.95 | USD | 20250730 |