wcs wrote:If you were in the US studying full time you may have a slim chance at getting a renewal for a year. Then you move back to Singapore year end, and share all that new knowledge in Singapore for the benefit of local companies.

wcs, I beg to differ on this. Those that were allowed to reapply for PR for further studies are usually on student visa studying in NUS or NTU when they were offered PR. Or on local scholarship. They were offered a place in overseas Uni for further studies and they give up their PR upon recommendation by ICA and comes back to SG after their MBA or PHD .
Even that their Overseas studies were at recognised Uni by SG Gahmen.
I have NOT come across whereby one was offered or apply PR thru work or living here BUT went overseas after that to work somewhere else and were given REP when the first one expired while living or working overseas all the time of his PR period.
Overseas work for that matter assigned by parent company in Singapore is a valid reason provided Income Tax are paid here in SG.
CPF contribution , owning a HDB house is NOT seen as contributing to SG economy and socio-benefits.
The positive thinker sees the invisible, feels the intangible, and achieves the impossible.Yahoo !!!