| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.2 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 604.34 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 421.63 | USD | 20250926 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.61 | USD | 20250924 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 323.68 | USD | 20250924 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 605.15 | USD | 20250924 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.2 | USD | 20250924 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.2 | USD | 20250923 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 605.15 | USD | 20250923 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.61 | USD | 20250923 |