| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 689.67 | USD | 20251011 |
| Nantong Zhonghe Chem | China national standards | MT | 703.75 | USD | 20251011 |
| Nantong Zhonghe Chem | China national standards | MT | 703.75 | USD | 20251010 |
| Nantong Zhonghe Chem | China national standards | MT | 689.67 | USD | 20251010 |
| Nantong Zhonghe Chem | China national standards | MT | 689.15 | USD | 20251009 |
| Nantong Zhonghe Chem | China national standards | MT | 703.22 | USD | 20251009 |
| Nantong Zhonghe Chem | China national standards | MT | 703.68 | USD | 20250930 |
| Nantong Zhonghe Chem | China national standards | MT | 689.61 | USD | 20250930 |
| Nantong Zhonghe Chem | China national standards | MT | 689.28 | USD | 20250929 |
| Nantong Zhonghe Chem | China national standards | MT | 689.28 | USD | 20250929 |