| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.45 | USD | 20251117 |
| Henan Kaijie Water | China national standards | MT | 1059.08 | USD | 20251117 |
| Henan Kaijie Water | 1000 VOCs | MT | 1242.5 | USD | 20251116 |
| Henan Kaijie Water | China national standards | MT | 1058.95 | USD | 20251116 |
| Henan Shunzhibang | China national standards | MT | 776.56 | USD | 20251116 |
| Henan Huiyi | China national standards | MT | 211.79 | USD | 20251116 |
| Henan Huiyihai | 300 VOCs | MT | 324.74 | USD | 20251116 |
| Henan Huiyihai | 300 VOCs | MT | 211.79 | USD | 20251116 |
| Henan Huiyihai | China national standards | MT | 211.79 | USD | 20251116 |
| Henan Huiyihai | China national standards | MT | 211.79 | USD | 20251115 |