| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.29 | USD | 20250822 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.31 | USD | 20250822 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.35 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.38 | USD | 20250821 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.4 | USD | 20250821 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 280.17 | USD | 20250820 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.11 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.12 | USD | 20250820 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.13 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.18 | USD | 20250819 |