| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyi | China national standards | MT | 281.57 | USD | 20250830 |
| Shandong Qiangsen Chem | China national standards | MT | 190.06 | USD | 20250830 |
| Henan Huiyihai | China national standards | MT | 274.53 | USD | 20250829 |
| Henan Huiyi | China national standards | MT | 281.57 | USD | 20250829 |
| Shandong Qiangsen Chem | China national standards | MT | 190.06 | USD | 20250829 |
| Chizhou Xinyu Chem | China national standards | MT | 253.41 | USD | 20250829 |
| Henan Huiyihai | China national standards | MT | 274.4 | USD | 20250828 |
| Henan Huiyi | China national standards | MT | 281.44 | USD | 20250828 |
| Chizhou Xinyu Chem | China national standards | MT | 253.3 | USD | 20250828 |
| Shandong Qiangsen Chem | China national standards | MT | 189.97 | USD | 20250828 |