| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 967.46 | USD | 20250822 |
| Shandong Jinwen Chem | China national standards | MT | 1093.65 | USD | 20250822 |
| Qingdao Shengze Chem | China national standards | MT | 967.92 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 967.92 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 967.92 | USD | 20250821 |
| Shandong Xima | China national standards | MT | 911.81 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1242.86 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1167.11 | USD | 20250821 |
| Shandong Jinwen Chem | China national standards | MT | 1094.17 | USD | 20250821 |
| Shandong Jinwen Chem | China national standards | MT | 967.92 | USD | 20250821 |