** Shares of Australian copper stocks fell on U.S. President Donald Trump's tariff announcement
** Trump said he would impose a 50% tariff on imported copper
** Prices of the commodity also slipped on Tuesday as Trump tariff worries triggered selling MET/L
** Australian copper stocks such as Sandfire Resources SFR.AX lost as much as 10.8%, hitting its lowest level since May 9
** ASX-listed shares of Capstone Copper CSC.AX shed as much as 3.6%, hitting lowest level since June 26
(Reporting by Rajasik Mukherjee in Bengaluru)
((Rajasik.Mukherjee@thomsonreuters.com))