| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong QiFa Chem | China national standards | MT | 890.17 | USD | 20251209 |
| Shandong Wonfull Petro | China national standards | MT | 713.55 | USD | 20251209 |
| Jinan Jinrihe Chem | China national standards | MT | 699.42 | USD | 20251209 |
| Shandong Qiangsen Chem | China national standards | MT | 805.39 | USD | 20251209 |
| Shandong Zhongke Taihua | China national standards | MT | 946.81 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 727.77 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 727.77 | USD | 20251208 |
| Shandong Zhongke Taihua | China national standards | MT | 946.81 | USD | 20251208 |
| Shandong Zhongke Taihua | China national standards | MT | 946.81 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 727.77 | USD | 20251208 |