 ALBANY, NY ACCESSWIRE July 14, 2021 Mechanical Technology, Incorporated MTI or the Company, NASDAQ:MKTY, the parent company of MTI Instruments, Inc. MTI Instruments, a test and measurement instruments and systems business and EcoChain, Inc. EcoChain, a cryptocurrency mining business powered by renewable energy, has been invited to present at the Access to Giving Virtual Investor Conference, which is being held virtually on July 13th - 15th, 2021. Michael Toporek, CEO of MTI will present at the conference. 