| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.39 | USD | 20251110 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.86 | USD | 20251110 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.6 | USD | 20251110 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.49 | USD | 20251110 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1241.96 | USD | 20251110 |
| Henan Kaijie Water Treatment Co., Ltd. | 1000 VOCs | MT | 1242.31 | USD | 20251109 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 211.76 | USD | 20251109 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | 300 VOCs | MT | 324.69 | USD | 20251109 |
| Henan Leavit Chemical Technology Co., Ltd. | 700 VOCs | MT | 536.45 | USD | 20251109 |
| Henan Leavit Chemical Technology Co., Ltd. | 500 VOCs | MT | 508.22 | USD | 20251109 |