| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.94 | USD | 20251208 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1243.57 | USD | 20251208 |
| Henan Qingmai Environmental Protection Technology Co., Ltd. | China national standards | MT | 791.36 | USD | 20251208 |
| Henan Leavit Chemical Technology Co., Ltd. | 400 VOCs | MT | 508.73 | USD | 20251208 |
| Guangzhou Longyu Chemical Co., Ltd. | Industrial Grade | MT | 353.29 | USD | 20251208 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 325.02 | USD | 20251208 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 508.73 | USD | 20251208 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 325.09 | USD | 20251207 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1243.83 | USD | 20251207 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 212.02 | USD | 20251207 |