| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkanda Chem | China national standards | MT | 535.75 | USD | 20251024 |
| Shandong Mengkanda Chem | China national standards | MT | 535.83 | USD | 20251023 |
| Shandong Mengkanda Chem | China national standards | MT | 535.56 | USD | 20251022 |
| Shandong Mengkanda Chem | China national standards | MT | 535.6 | USD | 20251017 |
| Shandong Mengkanda Chem | China national standards | MT | 535.45 | USD | 20251016 |
| Shandong Mengkanda Chem | China national standards | MT | 535.05 | USD | 20251014 |
| Shandong Mengkanda Chem | China national standards | MT | 535.16 | USD | 20251013 |
| Shandong Mengkanda Chem | China national standards | MT | 534.8 | USD | 20250930 |
| Shandong Mengkanda Chem | China national standards | MT | 534.8 | USD | 20250930 |
| Shandong Mengkanda Chem | China national standards | MT | 534.07 | USD | 20250926 |