| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Satellite Chem | China national standards | MT | 791.36 | USD | 20251208 |
| Sinopec | China national standards | MT | 777.23 | USD | 20251208 |
| Wanhua Yantai | China national standards | MT | 791.36 | USD | 20251208 |
| Shandong Laya Chem | China national standards | MT | 791.36 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1059.86 | USD | 20251208 |
| Wanhua Yantai | China national standards | MT | 897.35 | USD | 20251208 |
| Shandong Mingyu | China national standards | MT | 862.02 | USD | 20251208 |
| Shandong Xima | China national standards | MT | 791.36 | USD | 20251208 |
| Sinopec | China national standards | MT | 777.23 | USD | 20251208 |