SummaryMJSA Expo is happening from 10 March 2019, Sunday to 12 March 2019, Tuesday at Jacob K. Javits Convention Center in New York City, NY. The organizer of the event is Mjsa, Inc.. MJSA Expo is open to trade visitors. The estimated number of exhibitors is 200. The frequency of MJSA Expo is annual. The event has been running since 1968.