| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.23 | USD | 20251021 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.95 | USD | 20251021 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.26 | USD | 20251021 |
| Hebei Junshen Environmental Technology Co., Ltd. | 700 VOCs | MT | 324.07 | USD | 20251020 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 309.98 | USD | 20251020 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 605.86 | USD | 20251020 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.7 | USD | 20251020 |
| Hebei Junshen Environmental Technology Co., Ltd. | 800 VOCs | MT | 422.84 | USD | 20251017 |
| Hebei Junshen Environmental Technology Co., Ltd. | 900 VOCs | MT | 606.07 | USD | 20251017 |
| Hebei Junshen Environmental Technology Co., Ltd. | 600 VOCs | MT | 310.08 | USD | 20251017 |