| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 636.02 | USD | 20251210 |
| Shandong Jinwen Chem | China national standards | MT | 636.02 | USD | 20251210 |
| Shandong Langchem | 90% | MT | 452.28 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 407.05 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 402.81 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 424.01 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 424.01 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 424.01 | USD | 20251210 |
| Shandong Baishui Chem | China national standards | MT | 470.65 | USD | 20251210 |
| Shandong Qiangsen Chem | China national standards | MT | 452.28 | USD | 20251210 |