| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 825.72 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1284.46 | USD | 20251124 |
| Shandong Yihe Chem | China national standards | MT | 818.67 | USD | 20251124 |
| Shandong Yihe Chem | China national standards | MT | 818.67 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1108.02 | USD | 20251124 |
| Lihuayi Shandong | China national standards | MT | 889.24 | USD | 20251124 |
| Jinan Angxin Chem | China national standards | MT | 861.01 | USD | 20251124 |
| Jinan Angxin Chem | China national standards | MT | 861.01 | USD | 20251124 |
| Shandong Xima | China national standards | MT | 988.04 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1256.23 | USD | 20251124 |