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Investor Presentaiton

DEEP RELATIONSHIPS WITH LEADING RENEWABLES DEVELOPERS Blattner Has Strong & Longstanding Relationships That Have Driven Repeat Business Select Customers Revenues from Repeat Customers NEXTera ENERGY eDF renewables ENGIE INNERGEX Clearway Orsted MIDAMERICAN ENERGY COMPANY Pattern Invenergy 100% Wind 80% NEXTera ENERGY eDF renewables ENGIC AVANTUS RECURRENT ENERGY 60% Orsted RWE Invenergy Clearway Origis Energy™ Solar 40% Storage QUANTA NEXTera ENERGY Orsted EDF renewables AVANTUS™ 20% 94% 100% 100% 98% 0% 2019A 2020A 2021A 2022A ■Repeat Customer Revenue Blattner typically performs work on a portfolio of +40 projects per year Page 32

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