| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 424.13 | USD | 20251204 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 311.03 | USD | 20251204 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.76 | USD | 20251202 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 607.4 | USD | 20251202 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.76 | USD | 20251202 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.89 | USD | 20251202 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.91 | USD | 20251201 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 607.7 | USD | 20251201 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 325.05 | USD | 20251201 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.97 | USD | 20251201 |