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Sigma Labs to Operate as Sigma Additive Solutions

Change Reflects Strategic Initiative to Deploy Technology on Thousands of Production Printers Sigma Additive Solutions to Begin Trading on the Nasdaq Capital Market (NASDAQ) Under New Ticker Symbol ‘SASI’ on May 19, 2022  Sigma Labs, Inc. (NASDAQ:SGLB) (“Sigma”, “we,” “our,” or the “Company”), a leading developer