| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 196.95 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 203.98 | USD | 20250918 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.27 | USD | 20250918 |
| Shandong Haihua Group Co., Ltd. | China national standards | MT | 168.81 | USD | 20250918 |
| Shandong Haihua Group Co., Ltd. | China national standards | MT | 168.81 | USD | 20250918 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 211.01 | USD | 20250918 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 182.88 | USD | 20250918 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 203.98 | USD | 20250918 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 183.03 | USD | 20250916 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 204.15 | USD | 20250916 |