| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251023 | |
| Shandong Jinwen Chem | China national standards | MT | USD | 20251023 | |
| Sinopec | China national standards | MT | USD | 20251023 | |
| Shandong Langchem | China national standards | MT | USD | 20251023 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251023 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251023 | |
| Shandong Yihe Chem | China national standards | MT | USD | 20251023 | |
| Shandong Chambroad | China national standards | MT | USD | 20251023 | |
| Shandong Mengkanda Chem | China national standards | MT | USD | 20251023 | |
| Shandong Mingyu | China national standards | MT | USD | 20251023 |
