| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.36 | USD | 20251104 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.47 | USD | 20251104 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 352.68 | USD | 20251104 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 634.83 | USD | 20251104 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.61 | USD | 20251104 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 352.68 | USD | 20251104 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 507.86 | USD | 20251104 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 507.86 | USD | 20251104 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 536.08 | USD | 20251104 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1241.45 | USD | 20251104 |