| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 281.05 | USD | 20250825 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.66 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.71 | USD | 20250825 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.76 | USD | 20250825 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.26 | USD | 20250824 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.31 | USD | 20250824 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.26 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.29 | USD | 20250823 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.31 | USD | 20250823 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.26 | USD | 20250822 |