I checked & verified it with BizFile. I paid S$5 and extracted more information on it.

Registration Number: 201004959C
Company Name: FACEBOOK SINGAPORE PTE. LTD.
Type: LIMITED PRIVATE COMPANY
Description: ADVERTISING SALE
Address: 1 TEMASEK AVENUE, #27-01, MILLENIA TOWER, SINGAPORE (039192)
Paid Up Capital: S$1 (WTF?)