| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.68 | USD | 20250923 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.91 | USD | 20250922 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.73 | USD | 20250922 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.4 | USD | 20250922 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.46 | USD | 20250922 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.36 | USD | 20250919 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.3 | USD | 20250919 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.54 | USD | 20250919 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.77 | USD | 20250919 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.56 | USD | 20250918 |