| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 869.27 | USD | 20251205 |
| Shandong Jinwen Chem | China national standards | MT | 1045.95 | USD | 20251205 |
| Nanjing Runsheng Petro | China national standards | MT | 989.41 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 869.27 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Yihe Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Hubei 789 Chem | China national standards | MT | 1272.1 | USD | 20251205 |
| Jinan Angxin Chem | China national standards | MT | 961.14 | USD | 20251205 |
| Shandong Yaoming Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Shandong Fusheng | China national standards | MT | 819.8 | USD | 20251205 |