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Q2 2013 Financial Results

14 Commitment to Sustainability Recycling services and resource recovery ■ Alternative energy projects ◉ ■ Company-wide focus supported by numerous programs Safety-Kleen's unique closed-loop system: - - Reclaiming - Recycling Reusing customer waste ASPHALT EXTENDERS INDUSTRIAL GLYCOL FUELS BYPRODUCTS BASE OIL FINISHED OIL PACKAGED OIL PRODUCTS RE-REFINED OIL PRODUCTS TO MARK CleanHarbors

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