| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 886.21 | USD | 20250902 |
| Shandong Qiangsen Chem | China national standards | MT | 886.21 | USD | 20250902 |
| Shandong Huize Chem | China national standards | MT | 1055.02 | USD | 20250902 |
| Qingdao Shengze Chem | China national standards | MT | 970.61 | USD | 20250902 |
| Qingdao Shengze Chem | China national standards | MT | 970.61 | USD | 20250902 |
| Shandong Fusheng | China national standards | MT | 1097.22 | USD | 20250902 |
| Shandong Fusheng | China national standards | MT | 886.21 | USD | 20250902 |
| Qingdao Shengze Chem | China national standards | MT | 970.61 | USD | 20250902 |
| Qingdao Shengze Chem | China national standards | MT | 970.85 | USD | 20250901 |
| Nanjing Daze | China national standards | MT | 1125.62 | USD | 20250901 |