| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 211.56 | USD | 20251105 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.56 | USD | 20251105 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 634.69 | USD | 20251105 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.48 | USD | 20251105 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.29 | USD | 20251105 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.4 | USD | 20251105 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 535.96 | USD | 20251105 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 507.75 | USD | 20251105 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 507.75 | USD | 20251105 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 352.6 | USD | 20251105 |