| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong LuoHeng Chem | China national standards | MT | 578.48 | USD | 20251121 |
| Shandong LuoHeng Chem | China national standards | MT | 578.48 | USD | 20251121 |
| Shandong LuoHeng Chem | China national standards | MT | 578.48 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 529.1 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 507.94 | USD | 20251121 |
| Shandong LuoHeng Chem | China national standards | MT | 578.48 | USD | 20251121 |
| Shandong Jinshenrun Chem | China national standards | MT | 578.48 | USD | 20251121 |
| Shandong Jinshenrun Chem | China national standards | MT | 564.37 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 507.94 | USD | 20251121 |
| Sinopec | China national standards | MT | 571.43 | USD | 20251121 |