| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.07 | USD | 20251017 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.08 | USD | 20251017 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.18 | USD | 20251017 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.42 | USD | 20251017 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 634.26 | USD | 20251017 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 352.37 | USD | 20251017 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 352.37 | USD | 20251017 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 507.41 | USD | 20251017 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 507.41 | USD | 20251017 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 535.6 | USD | 20251017 |