| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.45 | USD | 20251030 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.66 | USD | 20251029 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.55 | USD | 20251029 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.98 | USD | 20251029 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.47 | USD | 20251029 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.17 | USD | 20251024 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.25 | USD | 20251024 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.96 | USD | 20251024 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.27 | USD | 20251024 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.23 | USD | 20251021 |