| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 886.72 | USD | 20251011 |
| Shandong Hongyang Chem | China national standards | MT | 886.72 | USD | 20251010 |
| Shandong Hongyang Chem | China national standards | MT | 886.05 | USD | 20251009 |
| Shandong Hongyang Chem | China national standards | MT | 886.64 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 885.43 | USD | 20250928 |
| Shandong Hongyang Chem | China national standards | MT | 885.73 | USD | 20250919 |