| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai | 300 VOCs | MT | 324.53 | USD | 20251119 |
| Henan Huiyihai | 300 VOCs | MT | 211.65 | USD | 20251119 |
| Henan Huiyi | China national standards | MT | 211.65 | USD | 20251119 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 634.95 | USD | 20251119 |
| Henan Sendi EnvTech | China national standards | MT | 352.75 | USD | 20251119 |
| Henan Sendi EnvTech | China national standards | MT | 352.75 | USD | 20251119 |
| Shandong Jinwen Chem | China national standards | MT | 508.07 | USD | 20251118 |
| Henan Baoxin Tech | China national standards | MT | 945.58 | USD | 20251118 |
| Henan Kaijie Water | China national standards | MT | 1058.48 | USD | 20251118 |
| Shandong Jinwen Chem | Purified Water | MT | 508.07 | USD | 20251118 |