| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 627.38 | USD | 20251021 |
| Beijing Yanshan Petro | China national standards | MT | 634.43 | USD | 20251021 |
| Sinopec | China national standards | MT | 634.43 | USD | 20251021 |
| Sinopec | China national standards | MT | 613.28 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 507.54 | USD | 20251021 |
| Shandong Fusheng | China national standards | MT | 704.92 | USD | 20251021 |
| Shandong Fusheng | China national standards | MT | 563.94 | USD | 20251021 |
| Shandong Laya Chem | China national standards | MT | 521.64 | USD | 20251021 |
| Beijing Yanshan Petro | China national standards | MT | 521.64 | USD | 20251021 |
| Shandong Zhiheng | China national standards | MT | 634.43 | USD | 20251021 |