In the first half of this year, the California-based firm incurred a capital expenditure of USD 595 million on setting up data centres and storage infrastructure, among others.
Besides, Facebook shelled out USD 221 million on acquisitions and other assets such as patents.
"We anticipate making capital expenditures in 2013 of approximately USD 1.6 billion," Facebook said in a filing to the US Securities and Exchange Commission (SEC). Industry watchers feel that the company will be looking to capitalise on its user numbers and its mobile advertising base.
Bolstered by rising number of users in high growth markets like India and Brazil, Facebook raked in 61 percent USD 1.60 billion of its total revenues from advertising in the second quarter of this year.
Internet major Google, which is also competing with Facebook, generated 92 percent of its revenues from its advertisers in the six months ended June 30.
Facebook's investment plans for increasing infrastructure would get a boost as it posted strong second quarter results helped by a surge in user base and rising mobile ad revenue, which now represents 41 percent of its total revenue from advertising, they added.
Facebook posted a net income of USD 333 million for the April-June quarter against a loss of USD 157 million in year-ago period. Its revenue totalled USD 1.81 billion in the second quarter, an increase of 53 percent, compared with USD 1.18 billion in the second quarter of 2012.
"Cash used in investing activities during the first six months of 2013 primarily resulted from USD 595 million for capital expenditures related to the purchase of servers,
networking equipment, storage infrastructure and the construction of data centres," Facebook said
It also spent USD 221 million on acquisitions of businesses and other assets like patents, according to the filing.
On the back of surging user base in the emerging markets of India and Brazil, the social networking giant saw its monthly active users jump 21 percent to 1.15 billion at the end of June 2013.
"Users in India and Brazil represented key sources of growth in the second quarter of 2013 relative to the prior year," Facebook has said.
The firm's global daily active users (DAUs) rose by 27 percent to 699 million on average during June 2013 from 552 million during June 2012, again helped by growth in India, Brazil and other markets.