| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 535.16 | USD | 20251013 |
| Shandong Yihe Chem | China national standards | MT | 534.85 | USD | 20251011 |
| Shandong Yihe Chem | China national standards | MT | 527.81 | USD | 20251011 |
| Shandong Yihe Chem | China national standards | MT | 527.81 | USD | 20251010 |
| Shandong Yihe Chem | China national standards | MT | 534.85 | USD | 20251010 |
| Shandong Yihe Chem | China national standards | MT | 534.44 | USD | 20251009 |
| Shandong Yihe Chem | China national standards | MT | 527.41 | USD | 20251009 |
| Shandong Yihe Chem | China national standards | MT | 527.76 | USD | 20251008 |
| Shandong Yihe Chem | China national standards | MT | 534.8 | USD | 20251008 |
| Shandong Yihe Chem | China national standards | MT | 534.8 | USD | 20251007 |