Don't forget, you have to earn a certain amount to gain an EP. You would also have to maintain that in order to renew the EP as well. Again, this would be tantamount to the employer being amiable to some crap like that, which I doubt. Again, like anything else, once abused, screwed. I'm sure that MOM checks with IRAS on income reported (if PR they would check with CPF as well). So, vacations and/or sabbaticals as long as they are reasonable should not be a problem.
SOME PEOPLE TRY TO TURN BACK THEIR ODOMETERS. NOT ME. I WANT PEOPLE TO KNOW WHY I LOOK THIS WAY. I'VE TRAVELED A LONG WAY, AND SOME OF THE ROADS WEREN'T PAVED. ~ Will Rogers