** Shares of electric vehicle makers fall premarket after U.S. President Donald Trump imposed baseline 10% tariffs on most imports into the United States

** Rivian RIVN.O and Tesla TSLA.O fall ~3% each, Lucid LCID.O slumps 5%

** The base tariffs go into effect on April 5, while higher reciprocal tariffs on major trading partners on April 9

** Trump's 25% auto tariffs took effect on Thursday and said the 25% duties on auto parts would kick in on May 3

** EV firm executives including Tesla's Elon Musk had flagged that higher duties could affect the price of parts and result in higher costs for the companies

** Up to last close, TSLA down ~30%, LCID down 20%, RIVN down ~6% YTD

(Reporting by Zaheer Kachwala in Bengaluru)

((Zaheer.Kachwala@thomsonreuters.com))