| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 352.87 | USD | 20251124 |
| Henan Kaijie Water | China national standards | MT | 1058.2 | USD | 20251123 |
| Henan Shunzhibang | China national standards | MT | 776.01 | USD | 20251123 |
| Henan Huiyi | China national standards | MT | 211.64 | USD | 20251123 |
| Henan Huiyihai | 300 VOCs | MT | 324.51 | USD | 20251123 |
| Henan Huiyihai | China national standards | MT | 211.64 | USD | 20251123 |
| Henan Kaijie Water | 1000 VOCs | MT | 1241.62 | USD | 20251123 |
| Henan Huiyihai | 300 VOCs | MT | 211.64 | USD | 20251123 |
| Henan Shunzhibang | China national standards | MT | 776.01 | USD | 20251122 |
| Henan Sendi EnvTech | China national standards | MT | 352.73 | USD | 20251122 |