| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251201 | |
| Shandong Aite Chem | China national standards | MT | USD | 20251201 | |
| Shandong Changyi Petro | China national standards | MT | USD | 20251201 | |
| Huizhou Jincheng Petro | China national standards | MT | USD | 20251201 | |
| Shandong Langchem | China national standards | MT | USD | 20251201 | |
| Xingtai Risun | China national standards | MT | USD | 20251201 | |
| Shandong Jinwen Chem | China national standards | MT | USD | 20251201 | |
| Sinopec | China national standards | MT | USD | 20251201 | |
| CNPC | China national standards | MT | USD | 20251201 | |
| Zhenghe | China national standards | MT | USD | 20251201 |
