Investor Presentaiton

ALLETE is an energy company providing sustainable solutions for future growth Societal expectations, regulation and environmental changing policy are requiring sustainable energy solutions • • Demands for cleaner and more sustainable energy forms are accelerating; over 29 states already have Renewable Portfolio Standards (RPS) Expect over 44 GWs of near term wind power development 29+ States >44 GWS • Many business sectors are increasing focus on being environmentally responsible; the utilities and C&I sector with strong customer demand for renewables Customer Demand • Electrification as an economy-wide approach to addressing climate change Electrification Significant, growing need for investments in hardening and expanding transmission and distribution systems T&D At ALLETE, we recognize that impacts from human activity, including climate change, are real, complex, and interrelated. We are committed to answer the call to transform the nation's energy landscape. 6 ALLETE www.allete.com/Sustainability

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