| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 349.66 | USD | 20250718 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 363.65 | USD | 20250718 | 
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 419.59 | USD | 20250718 | 
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 419.59 | USD | 20250718 | 
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 335.85 | USD | 20250717 | 
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 419.81 | USD | 20250717 | 
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 419.81 | USD | 20250717 | 
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.82 | USD | 20250717 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 363.83 | USD | 20250717 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 349.84 | USD | 20250717 |