| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.53 | USD | 20251124 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.64 | USD | 20251124 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.42 | USD | 20251119 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.3 | USD | 20251119 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.73 | USD | 20251119 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.53 | USD | 20251119 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.49 | USD | 20251118 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 423.39 | USD | 20251118 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.86 | USD | 20251118 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.6 | USD | 20251118 |