European shares opened slightly lower on Tuesday, weighed down by planemaker Airbus and its suppliers, which took a hit from proposed U.S. tariffs, while an event-packed week kept investors cautious.
At 0728 GMT, the pan-European STOXX 600 index dipped 0.07 percent at 387.80, with Paris's CAC down 0.2 percent at 5,473.65 and Frankfurt's trade-sensitive DAX off 0.1 percent at 11,944.08.
Shares of planemaker Airbus dropped 2.5 percent after the U.S. Trade Representative proposed tariffs on a list of European Union products including large commercial aircraft and parts. Washington is seeking to retaliate for more than $11 billion worth of EU subsidies to Airbus that the World Trade Organization has found cause "adverse effects" for the United States.
Airbus suppliers such as Safran, Leonardo and Dassault lost between 0.7 percent and 1.2 percent.
Source : Reuters