HK's Chief Executive said no violent behavior will be tolerated. Police fired 2 warning shots overnight to disperse a mob.
Insurance premiums increased from 1.3 trillion yuan in 2010 to 2.4 trillion yuan in 2015, regulatory data showed.
The standards must still be approved by the International Civil Aviation Organization's governing council later this year.
The three countries scheduled the meeting after DPRK conducted its fourth nuclear test on Jan 6.
Chinese authorities are on high alert as the country embraced the Spring Festival holiday.
People who report online "terrorist" content could get up to 100,000 yuan for each tip off.
The mayor of the island's Tainan city warned the toll could exceed 100.