RPT-Merck KGaA says to overcome EU concerns on Sigma-Aldrich deal
May 19, 2015 at 05:32 AM EDT
FRANKFURT, May 19 (Reuters) - Merck KGaA said European Union antitrust regulators had concerns "of a limited nature" about its planned takeover of laboratory supplies maker Sigma-Aldrich but it expects to wrap up the deal around mid-year.