Members of the public are advised that, the service of KMB Route No. B9 (Tuen Mun Station – Heung Yuen Wai Boundary Control Point) will be enhanced from 2 September 2023. Details are as follows:
| Mondays to Fridays (except public holidays) | ||
| From Tuen Mun Station | From Heung Yuen Wai Boundary Control Point | Headway* |
| 9.00 a.m. to 4.00 p.m. | 10.30 a.m. to 10.30 p.m. | 30 minutes |
| Saturdays, Sundays and public holidays | ||
| From Tuen Mun Station | From Heung Yuen Wai Boundary Control Point | Headway* |
| 6.00 a.m. to 8.00 p.m. | 7.30 a.m. to 10.30 p.m. | 30 minutes |
* The bus company will operate special departures originate from YOHO Mall II (northbound) and terminate at Yoho Mall Transport Interchange (southbound) subject to passenger demand.
Notices will be displayed by the bus company to inform passengers of the above arrangement.