Warren Buffett says looking for big businesses to buy

Billionaire investor Warren Buffett said on Monday that he was looking at more acquisition targets after a $9 billion buy of US specialty chemical maker Lubrizol by his Berkshire Hathaway last week.

"We are looking for large businesses to buy...we are ready to invest in any country," the chairman and chief executive of Berkshire Hathaway told reporters during his visit to South Korea to attend a ground-breaking ceremony for a factory run by a unit of an Israeli firm owned by his investment vehicle.

Sitting on $38 billion of cash equivalent at the end of last year, Berkshire needs "major acquisitions," Buffett said in his annual letter to its shareholders last month.