The Mesa Chamber of Commerce is holding is 99th annual Leadership Awards dinner April 19, honoring the best in business, education, tourism and community service. The event is scheduled at 6:30 p.m. at the Hilton Phoenix East/Mesa, 1011 W. Holmes Ave. The cost is $50 per person or $450 for a table of 10. Registration is required at www.mesachamber.org or by calling (480) 969-1307, Ext. 26.