| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |
| Shandong Huize Chem | China national standards | MT | 1045.89 | USD | 20251210 |
| Liao Jinxinda | China national standards | MT | 855.09 | USD | 20251210 |
| Nantong Zhonghe Chem | China national standards | MT | 1122.21 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 1130.69 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 932.82 | USD | 20251210 |
| Shandong Qiangsen Chem | China national standards | MT | 989.36 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |