| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Kaijie Water | China national standards | MT | 683.47 | USD | 20260105 |
| Henan Kaijie Water | China national standards | MT | USD | 20251226 | |
| Henan Kaijie Water | China national standards | MT | USD | 20251211 | |
| Henan Leavit Chem | 700 VOCs | MT | USD | 20251211 | |
| Shandong Jinwen Chem | China national standards | MT | USD | 20251211 | |
| Hebei Junshen Tech | 800 VOCs | MT | USD | 20251211 | |
| Henan Sendi EnvTech | 1000 VOCs | MT | USD | 20251211 | |
| Henan Qingmai Tech | 800 VOCs | MT | USD | 20251211 | |
| Henan Shunzhibang | China national standards | MT | USD | 20251211 | |
| Henan Huiyihai | 300 VOCs | MT | USD | 20251211 |