| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1189.22 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 1187.6 | USD | 20250928 |
| Shandong Hongyang Chem | China national standards | MT | 1187.6 | USD | 20250928 |
| Shandong Hongyang Chem | China national standards | MT | 1187.6 | USD | 20250926 |
| Shandong Hongyang Chem | China national standards | MT | 1187.6 | USD | 20250926 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250925 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250925 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Hongyang Chem | China national standards | MT | 1189.19 | USD | 20250923 |