Five banks were slapped with some 600 billion won ($393 million) in penalties by the financial watchdog Thursday over their mis-selling of equity-linked securities products tracking Hong Kong’s Hang Seng Index.

Five banks were slapped with some 600 billion won ($393 million) in penalties by the financial watchdog Thursday over their mis-selling of equity-l...

Five banks were slapped with some 600 billion won ($393 million) in penalties by the financial watchdog Thursday over their mis-selling of equity-linked securities products…