I am from Singapore too.
I sent out my application during early Sep last year.
Got the invitation last week for the coming Stage 1 in April.
It was soooo long and I almost forgotten about this application.
Anyway, that's about it.
I have a friend who also applied (1 - 2 months later), he got the rejection letter immediately after 2 weeks. So I was also very uncertain about their recruitment during then...
Anyway, we shall see... Good Luck!!