| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 1582.01 | USD | 20251126 |
| Nantong Zhonghe Chem | China national standards | MT | 1581.34 | USD | 20251125 |
| Nantong Zhonghe Chem | China national standards | MT | 1581.34 | USD | 20251125 |
| Nantong Zhonghe Chem | China national standards | MT | 1580.87 | USD | 20251124 |
| Nantong Zhonghe Chem | China national standards | MT | 1580.25 | USD | 20251121 |
| Nantong Zhonghe Chem | China national standards | MT | 1579.58 | USD | 20251120 |
| Nantong Zhonghe Chem | China national standards | MT | 1580.31 | USD | 20251119 |
| Nantong Zhonghe Chem | China national standards | MT | 1792.37 | USD | 20251118 |
| Nantong Zhonghe Chem | China national standards | MT | 1580.67 | USD | 20251118 |
| Nantong Zhonghe Chem | China national standards | MT | 1793.38 | USD | 20251117 |