| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chem | China national standards | MT | 253.3 | USD | 20250828 |
| Shandong Qiangsen Chem | China national standards | MT | 189.97 | USD | 20250828 |
| Henan Huiyihai | China national standards | MT | 274.23 | USD | 20250827 |
| Henan Huiyi | China national standards | MT | 281.26 | USD | 20250827 |
| Shandong Qiangsen Chem | China national standards | MT | 189.85 | USD | 20250827 |
| Chizhou Xinyu Chem | China national standards | MT | 253.14 | USD | 20250827 |
| Henan Huiyihai | China national standards | MT | 273.92 | USD | 20250826 |
| Henan Huiyi | China national standards | MT | 280.95 | USD | 20250826 |
| Chizhou Xinyu Chem | China national standards | MT | 252.85 | USD | 20250826 |
| Shandong Qiangsen Chem | China national standards | MT | 189.64 | USD | 20250826 |