| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 790.12 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 790.12 | USD | 20251123 |
| Wanhua Chem | China national standards | MT | 1044.09 | USD | 20251123 |
| Wanhua Yantai | China national standards | MT | 790.12 | USD | 20251123 |
| Sinopec | China national standards | MT | 790.12 | USD | 20251122 |
| Qingdao Shengze Chem | China national standards | MT | 1044.09 | USD | 20251122 |
| Shandong Laya Chem | China national standards | MT | 790.12 | USD | 20251122 |
| Satellite Chem | China national standards | MT | 874.78 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 818.34 | USD | 20251122 |
| Shandong Xima | China national standards | MT | 790.12 | USD | 20251122 |