| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkanda Chem | China national standards | MT | 1000.38 | USD | 20251020 |
| Shandong Mengkanda Chem | China national standards | MT | 1000.72 | USD | 20251017 |
| Shandong Mengkanda Chem | China national standards | MT | 1000.45 | USD | 20251016 |
| Shandong Mengkanda Chem | China national standards | MT | 999.7 | USD | 20251014 |
| Shandong Mengkanda Chem | China national standards | MT | 999.9 | USD | 20251013 |
| Shandong Mengkanda Chem | China national standards | MT | 999.23 | USD | 20250930 |
| Shandong Mengkanda Chem | China national standards | MT | 999.23 | USD | 20250930 |
| Shandong Mengkanda Chem | China national standards | MT | 998.2 | USD | 20250919 |