| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1299.64 | USD | 20251129 |
| Shaanxi Yanchang Petro | China national standards | MT | 1200.75 | USD | 20251129 |
| Lihuayi Shandong | China national standards | MT | 889.97 | USD | 20251129 |
| Beijing Yanshan Petro | China national standards | MT | 932.35 | USD | 20251129 |
| Lihuayi Shandong | China national standards | MT | 1031.23 | USD | 20251129 |
| Sinopec | China national standards | MT | 1229.0 | USD | 20251129 |
| Shandong Xima | China national standards | MT | 974.73 | USD | 20251129 |
| Zibo Lishuo Chem | China national standards | MT | 988.85 | USD | 20251128 |
| Zibo Lishuo Chem | China national standards | MT | 988.85 | USD | 20251128 |
| Zibo Lishuo Chem | China national standards | MT | 988.85 | USD | 20251128 |