| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 774.05 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 788.12 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 774.05 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 788.12 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 703.68 | USD | 20250930 |
| Shandong Zhiheng | China national standards | MT | 703.68 | USD | 20250930 |
| JIN Yimeng | China national standards | MT | 886.64 | USD | 20250930 |
| Shandong Aite Chem | China national standards | MT | 633.01 | USD | 20250929 |
| Shandong Aite Chem | China national standards | MT | 745.54 | USD | 20250929 |