| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.21 | USD | 20250813 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.22 | USD | 20250813 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.19 | USD | 20250813 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.03 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.03 | USD | 20250812 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 203.03 | USD | 20250812 |
| Quanzhou Harley Chemical Co., Ltd. | China national standards | MT | 217.07 | USD | 20250811 |
| China Salt Kunshan Co., Ltd. | China national standards | MT | 245.08 | USD | 20250811 |
| China Salt Kunshan Co., Ltd. | China national standards | MT | 245.08 | USD | 20250811 |