| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Lianchem | China national standards | MT | 1171.7 | USD | 20250909 |
| Shandong Langchem | China national standards | MT | 1168.88 | USD | 20250909 |
| Shandong Yeyang Chem | China national standards | MT | 1147.76 | USD | 20250909 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 1464.19 | USD | 20250908 |
| Shandong Xingpeng Chem | China national standards | MT | 1450.11 | USD | 20250908 |