SVP Extension for my Parents -

[carryoutsphere]

Hi Group,

My Parents and in Laws both are in Singapore for SVP. I am currently in SIngapore on Q1 Pass(EP). They are currently stamped to stay in Singapore for 30days. My Parents and Inlaws both have return ticket.

My Questions are :

1) Can we get extension of 30days more on my current Q1 Pass?
2) Do we need to have a sponsorer like PR Holder to extend My parents Pass for 30days or more.
3) What all documents required to get it extended? What is the procedure to get this extended? How much days before i should start the procedure for my parents SVP Extension?

Thanks in advance for your reply.