Tesla CEO Elon Musk has flagged concerns about differential tariff and market access terms between China and the U.S. With Tesla’s production based on the U.S. it faces 25% duties on exports to the U.S. That may be one reason it reportedly considered setting up assembly in the Shanghai Free Trade Zone. Yet, Tesla’s position may be hindered by potential section 301 tariffs by the Trump administration against Chinese exports, which may draw retaliation from the Chinese government. Mr. Musk’s comments come after imports by Tesla Beijing fell 23% in the fourth quarter vs. the third, where...