 Strong Sequential Improvements Across All Business Segments Driven by Successful Implementation and Execution of Ongoing Strategic Initiatives Introduced in Q3 2020 Company Provides Preliminary 2021 Revenue Guidance of 18.0 Million, Profitability and Positive Cash Flow JACKSONVILLE, FL ACCESSWIRE March 25, 2021 Duos Technologies Group, Inc. Duos or the Company NASDAQ:DUOT, a provider of intelligent security analytical technology solutions, reported financial results for the fourth quarter and full year ended December 31, 2020. Fourth Quarter 2020 and Recent Operational Highlights In October, awarded a new contract from existing customer CN, which includes complete North American service, support, maintenance and spare components sourcing for the seven 7 Railcar Inspection Portals rip currently in operation at CN. 