| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |
| Jinan Angxin Chem | China national standards | MT | 975.22 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1109.49 | USD | 20251210 |
| Shandong Shuojia Chem | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1286.16 | USD | 20251210 |
| Jinan Angxin Chem | China national standards | MT | 975.22 | USD | 20251210 |
| Shandong Shuojia Chem | China national standards | MT | 989.36 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |
| Shandong Jinshenrun Chem | China national standards | MT | 918.69 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |