| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1334.82 | USD | 20251126 |
| Sinopec | China national standards | MT | 1228.88 | USD | 20251126 |
| Shandong Yushuo Chem | China national standards | MT | 904.01 | USD | 20251126 |
| Shandong Yuhuang Chem | China national standards | MT | 1370.13 | USD | 20251126 |
| Sinopec | China national standards | MT | 889.88 | USD | 20251126 |
| Sinopec | China national standards | MT | 889.88 | USD | 20251126 |
| Beijing Yanshan Petro | China national standards | MT | 894.12 | USD | 20251126 |
| Lihuayi Shandong | China national standards | MT | 894.12 | USD | 20251126 |
| Shandong Shuojia Chem | China national standards | MT | 899.77 | USD | 20251126 |
| Shaanxi Yanchang Petro | China national standards | MT | 889.88 | USD | 20251126 |