| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.86 | USD | 20250922 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.24 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 225.02 | USD | 20250922 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.9 | USD | 20250922 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | China national standards | MT | 407.84 | USD | 20250922 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |
| Henan Lianying Water Treatment Materials Co., Ltd. | China national standards | MT | 337.52 | USD | 20250922 |
| Shandong Kailong Chemical Technology Development Co., Ltd. | China national standards | MT | 224.95 | USD | 20250921 |
| Jinan Kunfeng Chemical Co., Ltd. | China national standards | MT | 330.39 | USD | 20250921 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.18 | USD | 20250921 |