| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1164.97 | USD | 20250812 |
| Shandong Langchem | China national standards | MT | 1176.17 | USD | 20250812 |
| Dongying Lianchem | China national standards | MT | 1164.97 | USD | 20250812 |
| Shandong Langchem | China national standards | MT | 1162.17 | USD | 20250812 |
| Qingdao Shengze Chem | China national standards | MT | 1400.21 | USD | 20250812 |
| Qingdao Shengze Chem | China national standards | MT | 1400.21 | USD | 20250812 |
| Shandong Junfeng | China national standards | MT | 910.13 | USD | 20250812 |
| Shandong Junfeng | China national standards | MT | 917.14 | USD | 20250812 |
| Shandong Xingpeng Chem | China national standards | MT | 1400.21 | USD | 20250812 |
| Jiangsu Haixing Chem | China national standards | MT | 1134.17 | USD | 20250812 |