Presentation by Rivertop Renewables CEO Jim Stoppert on their glucaric acid at BIO World Congress on Industrial Biotechnology and Bioprocessing held in Washington, DC

1. Capital-Efficient Platform Chemistry BIO World Congress Next Generation Green Chemical Platforms June, 2010

2. What problem are we trying to solve? 2

3. Rivertop Value Propositions Disruptive, Capital-Efficient Technology Multi-Platform Oxidation Chemistry Immediate, Multi-Billion Dollar Markets Regulatory Drivers Short Time to Market Start of a Great Team 3

4. U.S. Dept. of Energy: “top twelve building block chemicals that can be converted to a number of high-value, bio-based chemicals or materials.” --Top Value Added Chemicals from Biomass, 2004. 4 Renewable Chemical Building Blocks l-arabinaric acid xylaric acid d-glucaric acid

5. Renewable Resources Glucose Glucose Xylose Arabinose Mannose Sucrose Lactose Galactose Mannitol ---------- Starch Cellulose Glycerol Glucaric Glucaric Xylaric Arabinaric Mannaric Galactaric Glyceric Polysaccharide Acids Grain Starch Grain Starch Cellulose Hemicellulose Cellulosic Ethanol Byproducts Sugarcane & Sugar Beets Algae & Seaweed Hydrogels Films Adhesives Flocculants Fire & Flame Retardants 5 Multi-Platform Process: Proprietary Oxidation Chemistry Direct Applications Chelating Agents Corrosion Inhibitors Water Reducers/Dispersants Chelating Agents Corrosion Inhibitors Water Reducers/Dispersants Buffers Exfoliants Intermediates & Monomers Feedstocks Organic Acids Proprietary Oxidation Chemistry Polymers Hydrogels

6. Conventional Oxidation: Inefficient & Costly 6

7. Platform Technology: Proprietary Oxidation Chemistry 7

8. Capital-Efficient Manufacturing 8 Cost of Capacity = $.33/lb ROI Metric = CAPEX Recovered in Year 1 Highly Scalable

9. Enabling Markets for Targeted Applications Corrosion Inhibitors for Road & Water Treatment $4.8B Building Material Additives $1.7B Detergent Builders $10B Cosmetic Exfoliants $240M Direct & Downstream Adhesives Controlled Release Fertilizers Fire & Flame Retardants 9

10. $10B Market—Phosphate Replacement in Detergents 10

11. Team Dr. Don Kiely – Founder, Director 12 U.S. patents, 2 pending in the field 21-year Editor, J. of Carbohydrate Chemistry 10-year industry consulting with grain refiners Dr. Tyler Smith – R&D Oxidation & Polymer Platforms Shafizadeh Center for Wood & Carbohydrate Chemistry, University of Montana Jim Stoppert – CEO Seasoned chemical industry veteran & industrial bioproducts pioneer Founded NatureWorks; incubated Elevance & BiOH; took Segetis thru semi-works & Series B raise Dow Chemical executive Jere Kolstad – Finance, Director 15+ years as start-up Executive Loudeye (bought by Nokia), Lariat, Cantrio, Stryder, Deloitte 11

12. Milestones 12

13. Rivertop Value Propositions Disruptive, Capital-Efficient Technology Multi-Platform Oxidation Chemistry Immediate, Multi-Billion Dollar Markets Regulatory Drivers Short Time to Market Start of a Great Team 13

14. We Now Have Choices 14