 MILTON, NY, March 17, 2021 GLOBE NEWSWIRE -- via NewMediaWire -- Sono-Tek Corporation OTCQX: SOTK, the leading developer and manufacturer of ultrasonic coating systems, today announced that Dr. Chris Coccio, CEO, and Steve Harshbarger, President, will present a corporate overview at the Q1 Virtual Investor Summit on Tuesday, March 23rd at 10:00am EST. 