China’s largest electric vehicle maker BYD’s first six-month net profit fell 29% to 1.17 billion yuan, or $ 180 million, amid rising material costs, the company reported in a paper Friday night. Revenue from the business backed by Warren Buffet increased 53.6% to 89.1 billion yuan. (Click here for the announcement.) Chinese electric vehicle makers have gained the attention of global stock investors over the past three years, in part thanks to hugely successful IPOs in the United States by upstarts Nio, XPeng and Li Auto. They have all doubled since listing due to the growing Chinese auto market, the…