TOKYO -- Warren Buffett's Berkshire Hathaway has increased its stake in Mitsubishi Corp. to over 10%, the Japanese trading house revealed on Thursday, boosting its share price in the Tokyo market.
Japanese trading house's share price jumps close to 3%

Warren Buffett's Berkshire Hathaway has investments in five Japanese trading companies including Mitsubishi Corp.
TOKYO -- Warren Buffett's Berkshire Hathaway has increased its stake in Mitsubishi Corp. to over 10%, the Japanese trading house revealed on Thursday, boosting its share price in the Tokyo market.