BYDの資本関係・沿革について、Yahoo Finance公式の報道記事（https://finance.yahoo.com/news/byd-stock-drops-as-warren-buffetts-berkshire-hathaway-fully-exits-stake-165613035.html）で確認できます。Existing references describe BYD's business model (battery vertical integration) and comparison to Tesla; none mention Berkshire Hathaway or any investor history, so there is no overlap. It is also a distinct central claim from the EU tariff finding (ownership/investment history vs. trade regulation).具体的には「Berkshire initially bought into BYD in September 2008, during the throes of the financial crisis, with a 225 million share purchase worth around $230 million. Before it started selling parts of the stake late in the summer of 2022, Berkshire's stake was worth around $7.7 billion. A Q1 financial filing by Berkshire Hathaway Energy... listed the value of the investment as zero at the end of the quarter.」といった記載が確認できます。限界として、この記述は当該Sourceの時点のものであり、その後の変更が反映されているとは限りません。 The article does not provide the exact total dollar proceeds Berkshire received from the multi-year divestment process, only the initial cost and pre-sale peak value.Current Statusとして、2026年08月27日に当該Sourceを取得し、上記の内容を確認しました。Source種別としては、これは第三者であるYahoo Financeによる報道であり、企業の自己申告とは性質が異なりますが、報道時点の取材内容に基づくものです。