| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2150.05 | USD | 20250825 |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2145.23 | USD | 20250822 |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2146.25 | USD | 20250821 |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2143.34 | USD | 20250820 |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2144.09 | USD | 20250819 |
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2145.2 | USD | 20250818 |