| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | China national standards | MT | 1080.92 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1102.12 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1109.18 | USD | 20251209 |
| Hualu Holdings | China national standards | MT | 1314.06 | USD | 20251209 |
| Lihuayi Shandong | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Hualu | China national standards | MT | 1017.34 | USD | 20251209 |
| Aite Zhejiang | China national standards | MT | 1073.86 | USD | 20251209 |
| Shandong Laya Chem | China national standards | MT | 1003.21 | USD | 20251209 |
| Shandong Fusheng | China national standards | MT | 819.52 | USD | 20251209 |