| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.22 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.22 | USD | 20250918 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.91 | USD | 20250918 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 253.22 | USD | 20250918 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 267.29 | USD | 20250918 |
| Jiangxi JINGHAO Salt Chemical Co., Ltd. | China national standards | MT | 204.15 | USD | 20250916 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.99 | USD | 20250916 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.07 | USD | 20250916 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 175.92 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.99 | USD | 20250915 |