| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xinbo Chem | China national standards | MT | 1157.02 | USD | 20251119 |
| Shiyou Yangzhou Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Jinan Xinbo Chem | China national standards | MT | 1128.8 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1114.69 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1100.58 | USD | 20251119 |
| Beijing Yanshan Petro | China national standards | MT | 907.27 | USD | 20251119 |
| Jinan Xinbo Chem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shanghai Guoke | China national standards | MT | 1281.18 | USD | 20251119 |