| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1522.22 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1169.85 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1172.67 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1172.67 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1183.95 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1172.67 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1172.67 | USD | 20251017 |
| Shandong Yeyang Chem | China national standards | MT | 1148.71 | USD | 20251017 |
| Qingdao Chengxin Chem | China national standards | MT | 915.91 | USD | 20251016 |
| Jinan Dezheng Chem | China national standards | MT | 1606.36 | USD | 20251016 |