| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai | China national standards | MT | 274.3 | USD | 20250902 |
| Henan Huiyi | China national standards | MT | 281.34 | USD | 20250902 |
| Suzhou Zhaohua Chem | China national standards | MT | 351.76 | USD | 20250901 |
| Henan Huiyi | China national standards | MT | 281.4 | USD | 20250901 |
| Henan Huiyihai | China national standards | MT | 274.37 | USD | 20250901 |
| Chizhou Xinyu Chem | China national standards | MT | 253.26 | USD | 20250901 |
| Shandong Qiangsen Chem | China national standards | MT | 189.95 | USD | 20250901 |
| Henan Huiyi | China national standards | MT | 281.57 | USD | 20250831 |
| Henan Huiyihai | China national standards | MT | 274.53 | USD | 20250831 |
| Henan Huiyi | China national standards | MT | 281.57 | USD | 20250830 |