| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 389.95 | USD | 20251127 |
| Nantong Zhonghe Chem | China national standards | MT | 389.85 | USD | 20251126 |
| Nantong Zhonghe Chem | China national standards | MT | 389.69 | USD | 20251125 |
| Nantong Zhonghe Chem | China national standards | MT | 389.69 | USD | 20251125 |
| Nantong Zhonghe Chem | China national standards | MT | 389.57 | USD | 20251124 |
| Nantong Zhonghe Chem | China national standards | MT | 389.42 | USD | 20251121 |
| Nantong Zhonghe Chem | China national standards | MT | 389.25 | USD | 20251120 |
| Nantong Zhonghe Chem | China national standards | MT | 389.43 | USD | 20251119 |
| Nantong Zhonghe Chem | China national standards | MT | 389.52 | USD | 20251118 |
| Nantong Zhonghe Chem | China national standards | MT | 389.74 | USD | 20251117 |