| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 973.13 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1071.86 | USD | 20251120 |
| Nanjing Runsheng Petro | China national standards | MT | 1043.65 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1249.56 | USD | 20251120 |
| Luxi Chem | China national standards | MT | 1001.34 | USD | 20251120 |
| Nanjing Runsheng Petro | China national standards | MT | 1043.65 | USD | 20251120 |
| Shandong Jinwen Chem | China national standards | MT | 973.13 | USD | 20251120 |
| Shandong Shuojia Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Shandong Shuojia Chem | China national standards | MT | 881.87 | USD | 20251119 |
| Shandong Shuojia Chem | China national standards | MT | 874.82 | USD | 20251119 |