| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.9 | USD | 20250907 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 204.04 | USD | 20250907 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.9 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.97 | USD | 20250906 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.9 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.97 | USD | 20250905 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 281.48 | USD | 20250904 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 204.08 | USD | 20250904 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.0 | USD | 20250904 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.84 | USD | 20250902 |