| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.93 | USD | 20251009 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | China national standards | MT | 787.6 | USD | 20251009 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | 800 VOCs | MT | 1054.82 | USD | 20251009 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.96 | USD | 20251009 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.61 | USD | 20251009 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 506.31 | USD | 20251009 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 506.31 | USD | 20251009 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 534.44 | USD | 20251009 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 632.89 | USD | 20251009 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 351.61 | USD | 20251009 |