Investor Presentaiton

M&A Strategy Focused on Profitable Growth Bolt-On Acquisition Playbook Target Profile ■ ☐ Privately held small to medium sized businesses Build and foster long-term relationships Avoid auctions or competitive bidding situations where possible Sales and distribution through similar or existing channels for Atkore Strategy " Strategic fit from a product or category perspective, or fills a portfolio gap Identified path to synergy & value creation Debt responsible Within existing management bandwidth and capacity Value Creation Leverage global spend for key raw material input categories to reduce costs Add products into Atkore sales & distribution umbrella for "One order, one shipment, one invoice" Drive 1-2 turns of synergy Quick Facts: A ▲ Atkore Spent over $290 million of cash on acquisitions since FY2017 Added over $400 million in profitable revenue through M&A activities since 2012 Exited over $400 million in breakeven proforma revenue since 2012 Successful Track Record of Portfolio Management 2013 Acquired Heritage Plastics Closed manufacturing location in France Closed manufacturing location in Brazil Fiscal Year Related Segment A Electrical Raceway A Mechanical Products & Solutions A Atkore International, Inc. 2015 2017 Acquired American Pipe & Plastics Acquired SCI Acquired Marco Acquired Flexicon Closed manufacturing location in Ohio 2019 Acquired Vergokan Acquired U.S. Tray Acquired Rocky Mountain Colby Pipe Acquired FlyTec Systems 2021 A Acquired Queen City Plastics 2014 2016 2018 2020 Acquired Ridgeline Pipe Manufacturing A Ceased operations for fence & sprinkler business A Acquired CalPipe A A Divested Flexhead Closed manufacturing location in Wales 12

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