Regulators said the giant American chip maker had offered financial incentives to ensure manufacturers bought equipment solely from the company.
European antitrust officials hammered Qualcomm with a $1.2 billion fine on Wednesday, saying the American chip maker, whose technology underpins much of the world's mobile phone industry, had abused its dominant market position to squeeze out competitors.
The penalty of 997 million euros follows a two-year investigation and is the latest move by regional regulators against a United States tech giant. Officials in Brussels say that Qualcomm offered financial incentives to Apple so that it would buy equipment solely from the chip maker. Qualcomm immediately said it would appeal the ruling, which would probably extend the case, originally announced in the summer of 2015, for years to come.