HONG KONG— Warren Buffett’s funding agency mentioned it offered shares of Chinese electric-vehicle maker BYD Co. 1211 -0.45% for about $46 million. Berkshire Hathaway Inc. BRK.B -0.71% offered 1.33 million of BYD’s Hong Kong-listed shares final Wednesday at a median of 277.10 Hong Kong {dollars} a share, equal to round $35 a share, in response to a submitting to the Hong Kong’s inventory trade. The sale, which got here days earlier than the automotive maker mentioned its January-June revenue tripled in contrast with a yr in the past, diminished Berkshire’s holdings in BYD from 220 million shares to 218.7 million...