| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 986.89 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 916.4 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1099.68 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1113.77 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1113.77 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1106.72 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1127.87 | USD | 20251021 |
| Beijing Yanshan Petro | China national standards | MT | 1113.77 | USD | 20251021 |
| Shandong Zhiheng | China national standards | MT | 1113.77 | USD | 20251021 |