| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.47 | USD | 20250929 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.54 | USD | 20250929 |
| Henan Leavit Chemical Technology Co., Ltd. | 600 VOCs | MT | 351.36 | USD | 20250928 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.25 | USD | 20250928 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.2 | USD | 20250928 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.34 | USD | 20250928 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.63 | USD | 20250928 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 632.45 | USD | 20250928 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | 1000 VOCs | MT | 632.45 | USD | 20250928 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 351.36 | USD | 20250928 |