OMAHA, Nebraska -- In the 60 years that Warren Buffett has led Berkshire Hathaway, the U.S. investment company's share price has soared on the strength of a portfolio that has grown to include Japan's biggest trading houses.
Billionaire says Berkshire has no plans to sell shares of trading houses

Berkshire Hathaway chairman Warren Buffett is seen on a screen speaking at the company's annual shareholders' meeting in Omaha, Nebraska, on May 3. © Reuters
OMAHA, Nebraska -- In the 60 years that Warren Buffett has led Berkshire Hathaway, the U.S. investment company's share price has soared on the strength of a portfolio that has grown to include Japan's biggest trading houses.