| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.74 | USD | 20251029 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.66 | USD | 20251029 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 211.74 | USD | 20251029 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 324.66 | USD | 20251029 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 211.74 | USD | 20251029 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | 800 VOCs | MT | 1058.68 | USD | 20251029 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 635.21 | USD | 20251029 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | China national standards | MT | 790.48 | USD | 20251029 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 352.89 | USD | 20251029 |
| Guangzhou Longyu Chemical Co., Ltd. | Industrial Grade | MT | 352.89 | USD | 20251029 |