| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.15 | USD | 20250921 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 253.06 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.8 | USD | 20250920 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.15 | USD | 20250920 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 309.3 | USD | 20250920 |
| Shandong Kailong Chemical Technology Development Co., Ltd. | China national standards | MT | 281.18 | USD | 20250920 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 253.06 | USD | 20250920 |