| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Sinopec | China national standards | MT | USD | 20251201 | |
| CNPC | China national standards | MT | USD | 20251201 | |
| Zhenghe | China national standards | MT | USD | 20251201 | |
| Shandong Yihe Chem | China national standards | MT | USD | 20251201 | |
| Derun Chem | China national standards | MT | USD | 20251201 | |
| Shandong Yaoming Chem | China national standards | MT | USD | 20251201 | |
| Shandong Chambroad | China national standards | MT | USD | 20251201 | |
| Jinan Jiaxing Chem | China national standards | MT | USD | 20251201 | |
| Qingdao Shengze Chem | China national standards | MT | USD | 20251201 | |
| Qilu Petrochem | China national standards | MT | USD | 20251201 |
