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Q2 2013 Financial Results

61 Re-refined Oil Trends Short-Term Group II August price movement allows S-K to increase contracted pricing by $.10/gallon effective October 1 - - Applied to ~50M contract base oil gallons, plus spot pricing $0.20/gallon increase on blended products effective end of September ■ Continued financial pressure due to depressed pricing and high PFO cost Mid-to Long-Term ■ Additional base oil capacity within the next year ■ Re-refinery industry ripe for consolidation ■ Well-positioned due to consistent supply of high-quality used oil, efficient. operations and high-quality base oil products Clean Harbor

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