| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 210.82 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.25 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.2 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.34 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.63 | USD | 20250926 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.36 | USD | 20250926 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.36 | USD | 20250926 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 505.96 | USD | 20250926 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 505.96 | USD | 20250926 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 505.96 | USD | 20250926 |