Investor Presentaiton

First Quarter 2020: Financial Highlights. . Revenue increased by 112.3% to $24.9M versus $11.7M for the same period last year. • Services Segment revenue increased 748% to $15.3M versus $1.8M for the same period last year • Treatment Segment revenue decreased 3.5% to $9.6M versus $9.9M for the same period last year due to temporary . delays in waste shipments related to the impact of COVID-19 in mid-March Gross profit increased to $4.6M for the first quarter of 2020 versus $2.5M in prior year due to higher revenue from the awards of several contracts in the Services Segment Generated adjusted EBITDA* of $1.9M versus $67,000 for the same period last year • Achieved net income attributable to common stockholders of $1.2 million, or $0.10 per share, compared to a loss of $672,000, or ($0.06) per share for the same period last year *See reconciliation of Adjusted EBITDA on slide 23 NASDAQ: PESI 21 27 PermaFix® environmental services A Nuclear Services and Waste Management Company

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