General Electric Co., Merck KGaA, Sigma-Aldrich Corp. and Canon Inc. are the latest companies to risk hefty penalties as the European Commission clamps down on violations of its merger approval procedures.

Months after the EU fined Facebook $125 million for giving misleading information during a deal review, regulators accused GE of doing the same during the review of its €1.5 billion takeover of LM Wind Power, the European Commission said Thursday.

Merck KGaA and Sigma-Aldrich also got objections for failing to provide information on a research project for chemicals during a 2015 merger review, it said. A third complaint went to Canon, which implemented the takeover of a Toshiba unit before getting approval.