| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 957.46 | USD | 20251014 |
| Shandong Hongyang Chem | China national standards | MT | 957.65 | USD | 20251013 |
| Shandong Hongyang Chem | China national standards | MT | 957.1 | USD | 20251011 |
| Shandong Hongyang Chem | China national standards | MT | 956.37 | USD | 20251009 |
| Shandong Hongyang Chem | China national standards | MT | 957.01 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 955.7 | USD | 20250928 |
| Shandong Hongyang Chem | China national standards | MT | 955.7 | USD | 20250926 |
| Shandong Hongyang Chem | China national standards | MT | 956.98 | USD | 20250925 |
| Shandong Hongyang Chem | China national standards | MT | 956.98 | USD | 20250924 |
| Shandong Hongyang Chem | China national standards | MT | 956.98 | USD | 20250923 |