| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 819.63 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 777.23 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 727.77 | USD | 20251208 |
| Zibo Qixiang Chem | China national standards | MT | 714.5 | USD | 20251207 |
| Shandong Wonfull Petro | China national standards | MT | 714.5 | USD | 20251207 |
| Shandong Wonfull Petro | China national standards | MT | 713.79 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 699.66 | USD | 20251207 |
| Shandong Wonfull Petro | China national standards | MT | 714.5 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 714.5 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 714.5 | USD | 20251207 |