| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 888.83 | USD | 20251031 |
| Shandong Xima | China national standards | MT | 874.72 | USD | 20251031 |
| Shandong Shuojia Chem | China national standards | MT | 987.58 | USD | 20251031 |
| Nantong Zhonghe Chem | China national standards | MT | 931.15 | USD | 20251031 |
| Nantong Zhonghe Chem | China national standards | MT | 952.31 | USD | 20251031 |
| Hubei 789 Chem | China national standards | MT | 1199.21 | USD | 20251031 |
| Qingdao Shengze Chem | China national standards | MT | 973.48 | USD | 20251031 |
| Qingdao Shengze Chem | China national standards | MT | 973.48 | USD | 20251031 |
| Hubei 789 Chem | China national standards | MT | 1199.21 | USD | 20251031 |
| Shandong Guanjiu Energy | China national standards | MT | 959.37 | USD | 20251031 |