| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 970.44 | USD | 20251009 |
| Sinopec | China national standards | MT | 1223.59 | USD | 20251009 |
| Shandong Yuhuang Chem | China national standards | MT | 1364.24 | USD | 20251009 |
| Sinopec | China national standards | MT | 1223.59 | USD | 20251009 |
| Shandong Yuhuang Chem | China national standards | MT | 1364.24 | USD | 20251009 |
| Sinopec | China national standards | MT | 1223.59 | USD | 20251009 |
| Sinopec | China national standards | MT | 1223.59 | USD | 20251009 |
| Lihuayi Shandong | China national standards | MT | 1378.3 | USD | 20251009 |
| Lihuayi Shandong | China national standards | MT | 1378.3 | USD | 20251009 |
| Shandong Aite Chem | China national standards | MT | 1195.47 | USD | 20251009 |