| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 1792.17 | USD | 20251030 |
| Nantong Zhonghe Chem | China national standards | MT | 1792.7 | USD | 20251029 |
| Nantong Zhonghe Chem | China national standards | MT | 1792.37 | USD | 20251028 |
| Nantong Zhonghe Chem | China national standards | MT | 1791.74 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 1791.74 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 1790.55 | USD | 20251024 |
| Nantong Zhonghe Chem | China national standards | MT | 1790.8 | USD | 20251023 |
| Nantong Zhonghe Chem | China national standards | MT | 1789.89 | USD | 20251022 |
| Nantong Zhonghe Chem | China national standards | MT | 1790.5 | USD | 20251021 |
| Nantong Zhonghe Chem | China national standards | MT | 1789.41 | USD | 20251020 |