| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chem | China national standards | MT | 875.4 | USD | 20251116 |
| Shandong Jinshenrun Chem | China national standards | MT | 988.35 | USD | 20251116 |
| Shandong Xingpeng Chem | China national standards | MT | 861.28 | USD | 20251116 |
| Beijing Yanshan Petro | China national standards | MT | 988.35 | USD | 20251116 |
| Qingdao Shengze Chem | China national standards | MT | 875.4 | USD | 20251116 |
| Shandong Junfeng | China national standards | MT | 917.76 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1115.43 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1115.43 | USD | 20251115 |
| Lihuayi Weiyuan Chem | China national standards | MT | 995.41 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1101.31 | USD | 20251115 |