| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 816.26 | USD | 20250915 |
| Shandong Yeyang Chem | China national standards | MT | 774.04 | USD | 20250915 |
| Shandong Laya Chem | China national standards | MT | 788.11 | USD | 20250915 |
| Nanjing Baitu Chem | China national standards | MT | 844.4 | USD | 20250915 |
| Nanjing Baitu Chem | China national standards | MT | 844.4 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 816.68 | USD | 20250914 |
| Qingdao Shengze Chem | China national standards | MT | 816.68 | USD | 20250914 |
| Shandong Xingpeng Chem | China national standards | MT | 830.76 | USD | 20250914 |
| Shandong Qiancheng | China national standards | MT | 844.84 | USD | 20250913 |
| Qingdao Shengze Chem | China national standards | MT | 816.81 | USD | 20250909 |