| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai | China national standards | MT | 274.03 | USD | 20250825 |
| Chizhou Xinyu Chem | China national standards | MT | 252.95 | USD | 20250825 |
| Shandong Qiangsen Chem | China national standards | MT | 189.71 | USD | 20250825 |
| Henan Huiyihai | China national standards | MT | 273.41 | USD | 20250824 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250824 |
| Henan Huiyihai | China national standards | MT | 273.41 | USD | 20250823 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250823 |
| Shandong Qiangsen Chem | China national standards | MT | 189.29 | USD | 20250823 |
| Henan Huiyihai | China national standards | MT | 273.41 | USD | 20250822 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250822 |