| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1102.49 | USD | 20251205 |
| Lihuayi Shandong | China national standards | MT | 975.28 | USD | 20251205 |
| Shandong Yihe Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1286.24 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 869.27 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1081.29 | USD | 20251205 |
| Shandong Zhiheng | China national standards | MT | 1257.97 | USD | 20251205 |
| Shandong Laya Chem | China national standards | MT | 1003.55 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1257.97 | USD | 20251205 |
| Jinan Angxin Chem | China national standards | MT | 961.14 | USD | 20251205 |