Investor Presentaiton

Atkore at a Glance ▲ Atkore A leading manufacturer of electrical, mechanical, and safety infrastructure solutions 1959 Founded 2016 Harvey, IL IPO (NYSE: ATKR) Headquarters ~3,700 Employees 65 Global Facilities FY 2020 Financial Highlights $ Millions (except per share amounts) FY 2020 Net Sales $1,765.4 Change vs. PY (7.9%) By Segment Net Income $152.3 +9.5% Mechanical Products & Adjusted EBITDA(1) $326.6 +0.7% Solutions 25% Adjusted EBITDA Margin 18.5% +160 bps Adjusted EPS(1) $3.78 +4.4% Free Cash Flow(1) $215.0 +23.0% Return on Capital(1) 17.8% +80 bps A 1. Atkore International, Inc. See non-GAAP reconciliation in appendix FY 2020 Net Sales Breakdown, $1.8B By Geography Intl. 11% Electrical Raceway 75% United States 89% By End Market Other 6% Intl. 11% U.S. Non- Residential Construction New OEM 33% 16% U.S. Residential U.S. Non- Residential Construction Construction - 14% R&R, 20%

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