| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1188.37 | USD | 20250922 |
| Shandong Hongyang Chem | China national standards | MT | 1188.37 | USD | 20250922 |
| Shandong Hongyang Chem | China national standards | MT | 1188.0 | USD | 20250919 |
| Shandong Hongyang Chem | China national standards | MT | 1188.0 | USD | 20250919 |
| Shandong Hongyang Chem | China national standards | MT | 1188.72 | USD | 20250918 |
| Shandong Hongyang Chem | China national standards | MT | 1188.72 | USD | 20250918 |