| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 818.0 | USD | 20251120 |
| Shandong Fusheng | China national standards | MT | 789.79 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 1015.44 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 951.98 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 796.84 | USD | 20251120 |
| Nanjing Runsheng Petro | China national standards | MT | 1551.37 | USD | 20251120 |
| Nanjing Runsheng Petro | Industrial Grade | MT | 902.62 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 937.87 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 902.62 | USD | 20251120 |
| Shandong Wells Chem | China national standards | MT | 909.67 | USD | 20251120 |