| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai | China national standards | MT | 175.26 | USD | 20250823 |
| Shandong Qiangsen Chem | China national standards | MT | 189.29 | USD | 20250823 |
| Jiangxi Jinghao Salt | China national standards | MT | 203.31 | USD | 20250823 |
| Henan Huiyihai | China national standards | MT | 175.26 | USD | 20250822 |
| Shandong Qiangsen Chem | China national standards | MT | 189.29 | USD | 20250822 |
| Jiangxi Jinghao Salt | China national standards | MT | 203.31 | USD | 20250822 |
| Henan Huiyihai | China national standards | MT | 175.35 | USD | 20250821 |
| Shandong Qiangsen Chem | China national standards | MT | 189.38 | USD | 20250821 |
| Jiangxi Jinghao Salt | China national standards | MT | 203.4 | USD | 20250821 |
| Suzhou Zhaohua Chem | China national standards | MT | 280.17 | USD | 20250820 |