| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251115 | |
| Sinopec | China national standards | MT | USD | 20251115 | |
| Shandong Langchem | China national standards | MT | USD | 20251115 | |
| Shandong Yaoming Chem | China national standards | MT | USD | 20251115 | |
| Aite Zhejiang | China national standards | MT | USD | 20251115 | |
| Huizhou Jincheng Petro | China national standards | MT | USD | 20251115 | |
| Qingdao Shengze Chem | China national standards | MT | USD | 20251115 | |
| Shandong Yihe Chem | China national standards | MT | USD | 20251115 | |
| Shandong Chambroad | China national standards | MT | USD | 20251115 | |
| CNPC | China national standards | MT | USD | 20251115 |
