| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.06 | USD | 20250916 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.76 | USD | 20250915 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.13 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.02 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.06 | USD | 20250915 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 351.84 | USD | 20250915 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.84 | USD | 20250915 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.94 | USD | 20250913 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.94 | USD | 20250912 |