According to the article, it's impossible to go to intermediate stations from Singapore except for Iskandar Puteri.
That's because passport control points just serve at KL, Iskandar Puteri, and Singapore.
So, passengers from Singapore to intermediate stations other than Iskandar Puteri have to change trains at Iskandar Puteri.
Like Hung Hom Station in Hong Kong, emigration inspection and immigration inspection should be done at one site.
In this case, both of the inspection should be done at Singapore(Jurong East).
