| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chem | China national standards | MT | 1067.0 | USD | 20251201 |
| Sinopec | China national standards | MT | 876.21 | USD | 20251201 |
| Jinan Angxin Chem | China national standards | MT | 918.61 | USD | 20251201 |
| Beijing Yanshan Petro | China national standards | MT | 876.21 | USD | 20251201 |
| Shanghai SinoMitsui | China national standards | MT | 876.21 | USD | 20251201 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1201.26 | USD | 20251201 |
| Jinan Xinbo Chem | China national standards | MT | 1130.6 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 876.21 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 876.21 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1130.6 | USD | 20251201 |