| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.18 | USD | 20250819 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.2 | USD | 20250819 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.3 | USD | 20250818 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.26 | USD | 20250818 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.28 | USD | 20250818 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.16 | USD | 20250817 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.14 | USD | 20250817 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.16 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.15 | USD | 20250816 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.14 | USD | 20250816 |