Apple on Wednesday took its legal war with Qualcomm to China, filing lawsuits there accusing the chip-making giant of illegally wielding monopoly power.
Apple on Friday sued Qualcomm, accusing the California chipmaker of abusing its market power to demand unfair royalties, echoing charges filed days earlier by US antitrust regulators.
Mobile chip giant Qualcomm was hit Tuesday with a US antitrust suit alleging it abused its dominant position in the market for processors used in cell phones and other devices.
South Korea's antitrust regulator slapped a 1.03 trillion won ($865 million) fine on Qualcomm Inc. Wednesday for allegedly violating competition laws.
US chip maker Qualcomm on Tuesday said it will not split in two despite pressure by an activist investment fund.
The European Union's anti-trust watchdog says it suspects that Qualcomm illegally made exclusivity payments to a major customer and sold chipsets below cost to force a competitor out of the market.
Qualcomm has inked a technology licensing deal with smartphone maker Xiaomi - a major Chinese firm that previously balked at paying royalties for use of the San Diego company's patents.
Qualcomm says it will cut jobs, update its board and review its business structure options as part of an effort to improve its performance.
The EU launched an anti-competition probe Thursday into US computer chip giant Qualcomm, the latest of a series of investigations into top American companies.
Activist investor firm Jana Partners says Qualcomm should speed up a stock repurchase, look for ways to cut costs, and consider splitting itself up.