| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 351.84 | USD | 20251007 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.1 | USD | 20251007 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.84 | USD | 20251007 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 506.65 | USD | 20251007 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 506.65 | USD | 20251007 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 534.8 | USD | 20251007 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1238.48 | USD | 20251007 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 211.1 | USD | 20251006 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1238.48 | USD | 20251006 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 211.1 | USD | 20251005 |