| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.9 | USD | 20250828 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 204.04 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.97 | USD | 20250828 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.79 | USD | 20250827 |
| China Salt Kunshan Co., Ltd. | China national standards | MT | 246.1 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.85 | USD | 20250827 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.92 | USD | 20250827 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.59 | USD | 20250826 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.69 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.64 | USD | 20250826 |