| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chem | China national standards | MT | 1363.74 | USD | 20250919 |
| Sinopec | China national standards | MT | 1223.15 | USD | 20250919 |
| Lihuayi Shandong | China national standards | MT | 1377.8 | USD | 20250919 |
| Shandong Aite Chem | China national standards | MT | 1195.03 | USD | 20250919 |
| Shandong Laya Chem | China national standards | MT | 970.08 | USD | 20250919 |
| Hubei 789 Chem | China national standards | MT | 1293.44 | USD | 20250919 |
| Hubei 789 Chem | China national standards | MT | 1293.44 | USD | 20250919 |
| Xiamen Yudeshun Chem | China national standards | MT | 1335.62 | USD | 20250919 |
| Xiamen Yudeshun Chem | China national standards | MT | 1335.62 | USD | 20250919 |
| Shandong Yushuo Chem | China national standards | MT | 970.08 | USD | 20250919 |