| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 189.29 | USD | 20250822 |
| Chizhou Xinyu Chem | China national standards | MT | 252.38 | USD | 20250822 |
| Henan Huiyihai | China national standards | MT | 273.54 | USD | 20250821 |
| Henan Huiyi | China national standards | MT | 280.56 | USD | 20250821 |
| Shandong Qiangsen Chem | China national standards | MT | 189.38 | USD | 20250821 |
| Chizhou Xinyu Chem | China national standards | MT | 252.5 | USD | 20250821 |
| Suzhou Zhaohua Chem | China national standards | MT | 350.22 | USD | 20250820 |
| Henan Huiyihai | China national standards | MT | 273.17 | USD | 20250820 |
| Henan Huiyi | China national standards | MT | 280.17 | USD | 20250820 |
| Shandong Qiangsen Chem | China national standards | MT | 189.12 | USD | 20250820 |