Originally Posted by
garykung
Because West Kowloon is not within GD.
West Kowloon is practically similar to the U.S. preclearance port of entry in Canada. So when you clear the U.S. CBP in Canada, making you practically under the U.S. control, you are still in Canada for all other purposes.
In this case, by clearing West Kowloon port, you are within the Mainland control. Yet, you are still in Hong Kong for all other purposes.
So West Kowloon is a Mainland port managed by GD PSB in Hong Kong.
Interesting because West Kowloon HSR station is listed on a page titled
Checkpoints in SZ by the Shenzhen Gov't Online. I like how the entry/exit stamp says 西九龙 when that isn't even a city in Mainland China. That is very similar to the preclearance stamps that say MON for Montréal and TOR for Toronto. As much as I would like this stamp, I would not risk arrest.
Luohu (Lo Wu), Huanggang, Shekou and Fuyong ports are eligible for the VOA.
And Shenzhen airport.
AFAIK, VOA can only be obtained at those ports, but one can EXIT out of any Shenzhen Port TO HK.