| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1164.31 | USD | 20250821 |
| Dongying Lianchem | China national standards | MT | 1167.11 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1178.34 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1167.11 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1167.11 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1167.11 | USD | 20250821 |
| Dongying Lianchem | China national standards | MT | 1192.36 | USD | 20250821 |
| Jiangsu Haixing Chem | China national standards | MT | 1136.25 | USD | 20250821 |
| Dongying Lianchem | China national standards | MT | 1192.36 | USD | 20250821 |
| Jiangsu Haixing Chem | China national standards | MT | 1136.25 | USD | 20250821 |