| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Zhaohua Chem | China national standards | MT | 349.94 | USD | 20250730 |
| Chizhou Xinyu Chem | China national standards | MT | 265.95 | USD | 20250730 |
| Shandong Qiangsen Chem | China national standards | MT | 188.97 | USD | 20250730 |
| Henan Huiyihai | China national standards | MT | 272.69 | USD | 20250729 |
| Henan Huiyi | China national standards | MT | 279.68 | USD | 20250729 |
| Shandong Qiangsen Chem | China national standards | MT | 188.78 | USD | 20250729 |
| Chizhou Xinyu Chem | China national standards | MT | 265.69 | USD | 20250729 |
| Henan Huiyi | China national standards | MT | 279.85 | USD | 20250728 |
| Henan Huiyihai | China national standards | MT | 272.85 | USD | 20250728 |
| Shandong Qiangsen Chem | China national standards | MT | 188.9 | USD | 20250728 |