| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1243.01 | USD | 20251126 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 635.36 | USD | 20251125 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 211.79 | USD | 20251125 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1242.48 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 508.29 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 508.29 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 352.98 | USD | 20251125 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 211.79 | USD | 20251125 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 324.74 | USD | 20251125 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 536.53 | USD | 20251125 |