| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 1002.98 | USD | 20251130 |
| Shandong Langchem | China national standards | MT | 1130.12 | USD | 20251129 |
| Shiyou Yangzhou Chem | China national standards | MT | 875.84 | USD | 20251129 |
| Shandong Jinshenrun Chem | China national standards | MT | 974.73 | USD | 20251129 |
| Lihuayi Weiyuan Chem | China national standards | MT | 875.84 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1115.99 | USD | 20251129 |
| Shandong Jinshenrun Chem | China national standards | MT | 974.73 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1101.87 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1108.93 | USD | 20251129 |
| Beijing Yanshan Petro | China national standards | MT | 974.73 | USD | 20251129 |