My understanding, having received a 90 day non-imm B from KL less than 2 weeks ago while applying for a 1 year visa, is that it is converted/ can be extended by one year once you get a work permit.
CM today - back from overseas. Had the building management update my return online this morning (TM30 just needed a renewal, not the whole process), went to Prom with no paperwork, they stamped my old TM30 slip with new date. Done....but lets not mention how long the queue was :)
I took this screenshot this morning - every single time someone comes on here and says it's ok to overstay even for a short time, just pay the fine on the way out, Im going to post it.