| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai | China national standards | MT | 211.1 | USD | 20251008 |
| Henan Huiyihai | 300 VOCs | MT | 323.69 | USD | 20251005 |
| Henan Huiyihai | 300 VOCs | MT | 211.1 | USD | 20251005 |
| Henan Huiyihai | China national standards | MT | 211.1 | USD | 20251005 |
| Henan Huiyihai | China national standards | MT | 211.1 | USD | 20251004 |
| Henan Huiyihai | 300 VOCs | MT | 323.69 | USD | 20251004 |
| Henan Huiyihai | 300 VOCs | MT | 211.1 | USD | 20251004 |
| Henan Huiyihai | 300 VOCs | MT | 211.1 | USD | 20251003 |
| Henan Huiyihai | 300 VOCs | MT | 323.69 | USD | 20251003 |
| Henan Huiyihai | China national standards | MT | 211.1 | USD | 20251003 |