| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Qiangsen Chem | China national standards | MT | 1046.88 | USD | 20251211 |
| Shandong Xima | China national standards | MT | 976.15 | USD | 20251211 |
| Nanjing Runsheng Petro | China national standards | MT | 947.85 | USD | 20251211 |
| Sinopec | China national standards | MT | 919.56 | USD | 20251211 |