The company has been caught in a political firestorm because of the city's pro-democracy demonstrations, and warned earlier this week that it could fire employees who take part in illegal protests. Hundreds of its flights were canceled when protesters overran the airport.
Paul Loo, the airline's chief commercial officer, also resigned, the company said in a stock exchange filing.
Cathay's (CPCAY) stock has plummeted nearly 24% since April.
This is a developing story and will be updated ...