| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Leavit Chem | 700 VOCs | MT | 537.03 | USD | 20251201 |
| Henan Baoxin Tech | China national standards | MT | 946.88 | USD | 20251201 |
| Hebei Junshen Tech | 700 VOCs | MT | 325.05 | USD | 20251201 |
| Henan Huiyihai | China national standards | MT | 211.9 | USD | 20251130 |
| Henan Kaijie Water | 1000 VOCs | MT | 1243.13 | USD | 20251130 |
| Henan Shunzhibang | China national standards | MT | 776.96 | USD | 20251130 |
| Henan Huiyi | China national standards | MT | 211.9 | USD | 20251130 |
| Henan Kaijie Water | China national standards | MT | 1059.49 | USD | 20251130 |
| Henan Huiyihai | 300 VOCs | MT | 211.9 | USD | 20251130 |
| Henan Huiyihai | 300 VOCs | MT | 324.91 | USD | 20251130 |