2011 Advanced Biofuels Leadership Conference Virent Energy Systems Lee Edwards, CEO

Virent’s BioForming ® Technology Fast and Robust –Inorganic Catalysts –Moderate Conditions –Industry Proven Scalability Energy Efficient –Exothermic –Low Energy Separation –Low Carbon Footprint Premium Drop-in Products –Tunable Platform –Infrastructure Compatible Feedstock Flexible –Conventional Sugars –Non-Food Sugars Leading catalytic route to renewable hydrocarbon fuels and chemicals. Virent Biogasoline Demonstration Plant- Madison, WI © 2011 – Virent Energy Systems, Inc. – N OT F OR D ISTRIBUTION

Virent Confidential Information Strategic Investors & Partners Feedstock Logistics Conversion Platform Customer Acceptance Platform Research & Development Technology Provider Feedstock R&D Catalyst Development Operations Shareholder Support Efforts to Determine BioGasoline’s Suitability in Current & Next Generation Engines Major Shareholder Participating in feedstock development and commercial deployment Deployment Opportunity Major Shareholder Development Partner Fuel Qualification Scale-Up Partner Market Channels

Virent Confidential Information Sugars to Cellulosic Migration Plan

Virent Confidential Information BioForming® catalytic process APR ZSM-5 Gasoline Diesel Kerosene JetFuel Condensation Hydrotreating Biomass Sugar Cane Corn Starch H 2 from Natural Gas Option for utilizing domestic natural gas resources to increase yields

Virent Confidential Information High quality, Drop-in Fuels Energy dense, Drop-in Fuels Premium Biogasoline – 120,000 Btu/gal Virent Distillates meet ASTM Specifications Virent fuel in Scuderia Ferrari race fuel

Virent Confidential Information Virent Enables 100% Renewable PET

Virent Confidential Information Million Barrels per Day U.S. Petroleum Product Consumption Virent Technology can Address > 90% of the Barrel

Virent Confidential Information Virent Policy Solutions Reduce Oil Dependence in Fuels and Chemicals products –Productivity beyond blend wall with true ‘Drop in’ performance –Gasoline, Jet, Diesel, Chemicals, Plastics, Fibers –Renewable yet identical Feedstock Flexibility –Lowest cost available, Cellulosic when competitive –Domestic Natural Gas used in increase yeilds Scalable –Leverage US Petro Chemical infrastructure and US engineering and operations capability

Virent Confidential Information Reducing Policy uncertainty Long term perspective –Confidence in manufacturing investment & jobs –Stability to increase commercial risk tolerance Technology neutral –Encourage innovation and continuous improvement –Avoid unintended un-level playing fields Reward performance –Energy Content –Carbon Intensity Customer Off-take –USG long term –Commodity volatility

Virent Confidential Information Feedstock inputs can vary with market price and to ensure year round operations Fast, continuous process lowers capital expenditures Low energy requirements minimize operating costs and lifecycle efficiency Product mix, and profits, can be optimized based on market demand and pricing No barriers to full market penetration Virent’s Advanced Biorefinery Solution Offering Premium Hydrocarbon Products and Advantaged Market Returns

Virent Confidential Information © 2010 Virent Energy Systems, Inc. Thank You Questions? Lee Edwards Virent CEO Madison, WI