| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 323.36 | USD | 20250919 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 210.89 | USD | 20250919 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 632.66 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 534.25 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 506.13 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 534.25 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 506.13 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 506.13 | USD | 20250919 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.48 | USD | 20250919 |