Taxed at payment. Taxable amount is amount of the cash payment.
Although the exit tax rules are not as clear for cash-settled awards, expatriate employees ceasing employment or leaving Singapore may be deemed to have vested in the award and be subject to taxation upon termination/leaving Singapore.
Generally, yes, provided subsidiary bears the cost of award.
Written agreement recommended.
Income Tax:
Generally, no withholding (except for certain expatriates ceasing employment and/or leaving Singapore based on deemed award income, if applicable).
Reporting requirements apply.
Social Insurance Contributions:
Employer and employee Central Provident Fund contributions will be due, subject to applicable contribution ceilings.