| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chem | China national standards | MT | 899.79 | USD | 20251202 |
| Sinopec | China national standards | MT | 894.14 | USD | 20251202 |
| Beijing Yanshan Petro | China national standards | MT | 1221.85 | USD | 20251202 |
| Shandong Aite Chem | China national standards | MT | 1200.67 | USD | 20251202 |
| Zibo Lishuo Chem | China national standards | MT | 988.78 | USD | 20251202 |
| Lihuayi Shandong | China national standards | MT | 889.91 | USD | 20251202 |
| Shandong Laya Chem | China national standards | MT | 974.66 | USD | 20251202 |
| Sinopec | China national standards | MT | 889.91 | USD | 20251202 |
| Aite Zhejiang | China national standards | MT | 1158.29 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1299.55 | USD | 20251202 |