| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 1435.51 | USD | 20251004 |
| Jinan Dezheng Chem | China national standards | MT | 1435.51 | USD | 20250930 |
| Jinan Dezheng Chem | China national standards | MT | 1435.51 | USD | 20250930 |
| Jinan Dezheng Chem | China national standards | MT | 1435.51 | USD | 20250930 |
| Jinan Dezheng Chem | China national standards | MT | 1435.51 | USD | 20250930 |
| Jinan Dezheng Chem | China national standards | MT | 1434.82 | USD | 20250929 |
| Jinan Dezheng Chem | China national standards | MT | 1434.82 | USD | 20250929 |
| Jinan Dezheng Chem | China national standards | MT | 1434.82 | USD | 20250929 |
| Jinan Dezheng Chem | China national standards | MT | 1434.82 | USD | 20250929 |
| Jinan Dezheng Chem | China national standards | MT | 1433.55 | USD | 20250927 |