(Bloomberg) -- Warren Buffett’s Berkshire Hathaway Inc. raised its stakes in Mitsubishi Corp. and Mitsui & Co., a vote of confidence in the Japanese trading houses that stoked gains in their shares. A ...

Warren Buffett’s Berkshire Hathaway has increased its stake in trading house Mitsubishi Corp., taking it to more than 10%, the Japanese company said. Mitsubishi Corp. said Thursday that National ...