| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| Tianjin Shengtongtai Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.01 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.05 | USD | 20250924 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250923 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250923 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.12 | USD | 20250923 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250923 |