SK Group Chairman Chey Tae-won will visit the United States to attend a ceremony marking SK hynix Inc.'s listing of its American depositary receipts on the Nasdaq market, industry sources said Thursday. Chey is scheduled to attend Friday's listing ceremony in New York, alongside SK hynix CEO Kwak Noh-jung and other senior executives, the sources said. During the event, Chey and the management team are expected to present SK hynix's technological competitiveness and long-term growth strategy to g