For Singaporeans and Permanent Residents, you will just need to bring along your NRIC. For foreigners, a copy of your passport and a copy of bank/credit card statement which indicates your place of residence. Information that you need to confirm before setting up a company are:
Proposed company name
Registered address
Nature of business (maximum 2)
Paid up share capital
Director and Shareholder
Residential address (proof of address is required, e.g. Phone bill, utility bill. etc)
For further information regarding Incorporation, read more.