| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 351.97 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.21 | USD | 20250908 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 379.94 | USD | 20250906 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.72 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.87 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.98 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.01 | USD | 20250906 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 379.94 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.01 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.87 | USD | 20250905 |