| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 805.67 | USD | 20251205 |
| Shandong Shuojia Chem | China national standards | MT | 727.93 | USD | 20251205 |
| Shandong Wonfull Petro | China national standards | MT | 714.5 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 805.67 | USD | 20251205 |
| Jinan Jinrihe Chem | China national standards | MT | 714.5 | USD | 20251205 |
| Shandong Wonfull Petro | China national standards | MT | 714.5 | USD | 20251205 |
| Jinan Aochen Chem | China national standards | MT | 848.07 | USD | 20251205 |
| Zibo Lishuo Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Shandong Wonfull Petro | China national standards | MT | 848.07 | USD | 20251205 |
| Shandong QiFa Chem | China national standards | MT | 890.67 | USD | 20251204 |