| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 885.32 | USD | 20250825 |
| Shandong Qiangsen Chem | China national standards | MT | 885.32 | USD | 20250825 |
| Nanjing Daze | China national standards | MT | 1121.69 | USD | 20250823 |
| Qingdao Shengze Chem | China national standards | MT | 967.46 | USD | 20250823 |
| Shandong Xima | China national standards | MT | 869.31 | USD | 20250823 |
| Shandong Qiangsen Chem | China national standards | MT | 883.33 | USD | 20250823 |
| Shandong Qiangsen Chem | China national standards | MT | 883.33 | USD | 20250823 |
| Nanjing Guanshan Energy | China national standards | MT | 1002.51 | USD | 20250822 |
| Qingdao Shengze Chem | China national standards | MT | 967.46 | USD | 20250822 |
| Qingdao Shengze Chem | China national standards | MT | 967.46 | USD | 20250822 |