| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Yihe Chem | China national standards | MT | 818.28 | USD | 20251031 |
| Jinan Angxin Chem | China national standards | MT | 917.04 | USD | 20251031 |
| Jinan Angxin Chem | China national standards | MT | 917.04 | USD | 20251031 |
| Nanjing Runsheng Petro | China national standards | MT | 888.83 | USD | 20251031 |
| Shandong Laya Chem | China national standards | MT | 1001.69 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1100.45 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1100.45 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1079.29 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1255.64 | USD | 20251031 |