| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.61 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.54 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.58 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.59 | USD | 20250818 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.52 | USD | 20250818 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 350.52 | USD | 20250818 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.33 | USD | 20250817 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.27 | USD | 20250816 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 336.27 | USD | 20250815 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 350.28 | USD | 20250815 |