| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 875.51 | USD | 20251117 |
| Beijing Yanshan Petro | China national standards | MT | 1200.29 | USD | 20251117 |
| Qingdao Shengze Chem | China national standards | MT | 875.51 | USD | 20251117 |
| Shandong Junfeng | China national standards | MT | 988.48 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1115.57 | USD | 20251117 |
| Shanghai Guoke | China national standards | MT | 1282.2 | USD | 20251117 |
| Shandong Aite Chem | China national standards | MT | 1242.66 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1129.69 | USD | 20251117 |
| Beijing Yanshan Petro | China national standards | MT | 875.51 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1101.45 | USD | 20251117 |