| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyi | China national standards | MT | 211.1 | USD | 20251006 |
| Henan Kaijie Water | 1000 VOCs | MT | 1238.48 | USD | 20251006 |
| Henan Kaijie Water | China national standards | MT | 1055.52 | USD | 20251006 |
| Henan Huiyi | China national standards | MT | 211.1 | USD | 20251005 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251005 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251005 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.31 | USD | 20251005 |
| Henan LanenChem | Pharmaceutical Grade | MT | 1914.01 | USD | 20251005 |
| Henan Huiyihai | 300 VOCs | MT | 323.69 | USD | 20251005 |
| Henan Huiyihai | 300 VOCs | MT | 211.1 | USD | 20251005 |