| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyi | China national standards | MT | 280.17 | USD | 20250724 |
| Shandong Qiangsen Chem | China national standards | MT | 189.12 | USD | 20250724 |
| Henan Huiyi | China national standards | MT | 280.06 | USD | 20250723 |
| Chizhou Xinyu Chem | China national standards | MT | 266.05 | USD | 20250723 |
| Shandong Qiangsen Chem | China national standards | MT | 189.04 | USD | 20250723 |
| Henan Huiyihai | China national standards | MT | 273.06 | USD | 20250723 |
| Henan Huiyi | China national standards | MT | 279.88 | USD | 20250722 |