| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 1043.65 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1100.06 | USD | 20251120 |
| Nanjing Runsheng Petro | China national standards | MT | 888.51 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 1255.2 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1283.41 | USD | 20251120 |
| Shandong Zhenkun | China national standards | MT | 1078.91 | USD | 20251120 |
| Shandong Yihe Chem | China national standards | MT | 818.0 | USD | 20251120 |
| Shandong Fusheng | China national standards | MT | 818.0 | USD | 20251120 |