As you Asking for the Contact details of the Singapore branch of the Bank of America the contact details Are given below

Singapore
OUE Bayfront #14-01
50 Collyer Quay
Singapore 049321
Tel: +65.6678.0000

For knowing the Contact details of the Any other branches of the Bank of America you may go to the Official Site of the Bank of America

the page may look as Follow

Bank of America



There At the Top of the page you may get the menu of Location click on It After clicking you may redirect to the page from there you may get the Contact details of the Any other location of the bank of America

For your convince Here I am giving you the Snapshot of that page

Bank of America branch locator