| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.71 | USD | 20251112 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 607.06 | USD | 20251112 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 536.47 | USD | 20251112 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 352.94 | USD | 20251112 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 635.3 | USD | 20251112 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 508.24 | USD | 20251112 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1242.36 | USD | 20251112 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.77 | USD | 20251112 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 352.94 | USD | 20251112 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 508.24 | USD | 20251112 |