| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Yudeshun Chem | China national standards | MT | 1340.39 | USD | 20251121 |
| Shandong Zhiheng | China national standards | MT | 1171.08 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 1382.72 | USD | 20251121 |
| Sinopec | China national standards | MT | 1227.51 | USD | 20251121 |
| Xiamen Yudeshun Chem | China national standards | MT | 1340.39 | USD | 20251121 |
| CNPC | China national standards | MT | 1213.4 | USD | 20251121 |
| Zibo Lishuo Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 1044.09 | USD | 20251121 |
| Zibo Lishuo Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Aite Chem | China national standards | MT | 1199.29 | USD | 20251121 |