You're welcome!
Not the best template but thank your lucky stars Singapore doesn't
have the same stringent workplace laws governing dismissals that
Australia does because firing employees here is really really
tough, esp since the Unions are so powerful. Even if the employees
are lazy and unproductive, you basically cannot touch them. Crazy!

Oh! I think after listing the wrongdoings, you can add the
paragraph, "Since all these are in direct violation with the
company's policies with regards to Punctuality, Giving Notice of
Absence, as well as an abuse of the company's assets and trust, the
company therefore, has to take appropriate action."