Two credit rating agencies put PPG Industries Inc., a supplier of paints, coatings and chemicals, under review after the company offered to buy SigmaKalon Group for $3 billion.
Moody's Investors services put the Pittsburgh-based company's "A2" senior unsecured ratings and its "Prime-1" short-term rating under review for a possible downgrade.
Meanwhile, Standard & Poor's Ratings Services placed PPG's "A" corporate credit and its senior unsecured debt and commercial paper ratings on "CreditWatch" with negative implications.