| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 424.41 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 424.41 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 424.41 | USD | 20251211 |
| Shandong Qiancheng | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Qiancheng | Industrial Grade | MT | 509.29 | USD | 20251211 |
| Shandong Qiancheng | China national standards | MT | 1046.88 | USD | 20251211 |
| Shandong Qiancheng | 90% | MT | 396.12 | USD | 20251211 |
| Changzhou Qidi Chem | China national standards | MT | 438.56 | USD | 20251211 |
| Shandong Shuojia Chem | China national standards | MT | 438.56 | USD | 20251211 |
| Shandong Shuojia Chem | China national standards | MT | 438.56 | USD | 20251211 |