| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 633.31 | USD | 20250930 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 351.84 | USD | 20250930 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 534.8 | USD | 20250930 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 506.65 | USD | 20250930 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 506.65 | USD | 20250930 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.84 | USD | 20250930 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1237.88 | USD | 20250929 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.01 | USD | 20250929 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.88 | USD | 20250929 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.47 | USD | 20250929 |