| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.56 | USD | 20251113 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.53 | USD | 20251112 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 607.06 | USD | 20251112 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.59 | USD | 20251112 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.71 | USD | 20251112 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.56 | USD | 20251111 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.33 | USD | 20251111 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.78 | USD | 20251111 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.45 | USD | 20251111 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.49 | USD | 20251110 |