| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 804.23 | USD | 20251122 |
| Zibo Lishuo Chem | China national standards | MT | 818.34 | USD | 20251122 |
| Shandong Wonfull Petro | China national standards | MT | 684.3 | USD | 20251122 |
| Shandong Wonfull Petro | China national standards | MT | 705.47 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 804.23 | USD | 20251122 |
| Zibo Lishuo Chem | China national standards | MT | 818.34 | USD | 20251122 |
| Jinan Angxin Chem | China national standards | MT | 719.58 | USD | 20251122 |
| Shandong Wonfull Petro | China national standards | MT | 691.36 | USD | 20251122 |
| Jinan Jinrihe Chem | China national standards | MT | 684.3 | USD | 20251122 |
| Jinan Jinrihe Chem | China national standards | MT | 684.3 | USD | 20251122 |