Investor Presentaiton

Strategic Initiatives = Growth in Revenue of 48.3% and Adjusted EBITDA* of 162% in 2019 from 2018 Recent initiatives lay foundation for increased revenue, improved operating efficiency & greater stability M&EC Closure in 2019 to reduce costs and liability . • • • Elimination of treatment capability and $5M/yr revenues largely replaced with DSSI and PFNW capacity Hiring key industry leaders with strong existing relationships/technical capabilities Revised business development programs with strategic focus and partnering emphasis with leading large businesses Nearly three years of cost-cutting and restructuring of Perma-Fix to increase efficiency and performance: . Reduction of consultants and narrowing of strategic initiatives • Increased efficiencies in non-labor expenses . Hired new managers and removed non-performing leaders *See company's definition of adjusted EBITDA on slide 23 and reconciliation of adjusted EBITDA in the company's Form 8-K filed with the SEC on March 19, 2020 NASDAQ: PESI 17 PermaFix® environmental services A Nuclear Services and Waste Management Company

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