| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251216 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251216 | |
| CNPC | China national standards | MT | USD | 20251216 | |
| Shandong Yeyang Chem | China national standards | MT | USD | 20251216 | |
| CNPC | China national standards | MT | USD | 20251216 | |
| Shandong Jinwen Chem | China national standards | MT | USD | 20251216 | |
| Derun Chem | China national standards | MT | USD | 20251216 | |
| Sinopec | China national standards | MT | USD | 20251216 | |
| Shandong Langchem | China national standards | MT | USD | 20251216 | |
| Shandong Mengkanda Chem | China national standards | MT | USD | 20251216 |
