| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1257.7 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Wuhan Hengjiu Chem | China national standards | MT | 918.55 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1130.52 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Jinan Aochen Chem | China national standards | MT | 1314.23 | USD | 20251208 |
| Shandong Hualu | China national standards | MT | 1017.47 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 989.2 | USD | 20251208 |