| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.85 | USD | 20251014 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 605.45 | USD | 20251014 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | 800 VOCs | MT | 1056.03 | USD | 20251014 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 211.21 | USD | 20251014 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 323.85 | USD | 20251014 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 211.21 | USD | 20251014 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 352.01 | USD | 20251014 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 633.62 | USD | 20251014 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1239.07 | USD | 20251014 |