Can I come back to work when my permit is cancelled due to absenteeism in Singapore?

Of course. You need to apply for reconsideration and successfully restore your license before you can return to work in Singapore. When you apply for reconsideration, you need to provide detailed explanations to the Immigration and Checkpoints Authority of Singapore (ICA) and submit supporting documents to prove the reasons for your failure to attend the class. If your application for reconsideration is approved, you can get a new permit and return to work in Singapore. However, if your application for reconsideration is not approved, you can't go back to work in Singapore.