Susterra ® 1,3 Propanediol For Brewery Heat Transfer Fluids Susterra ® 1,3 Propanediol offers system owners an innovative, bio based glycol alternative for glycol loops

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3 Glycol Viscosity Comparison Susterra® 1,3 Propanediol exhibits lower viscosity in low-temperature conditions like those in brewery heat transfer loops, improving efficiency of the system.

4 Comparison of Pumping Pressure: Susterra® 1,3 PDO vs PG At -10º C, a 40% PG /60% water solution requires 2.4 times the pumping energy as a 40% Susterra®/ 60% water solution wt % PG 40 wt % PDO Properties at -10º C

5 Freeze Points of Aqueous Glycol Solutions Susterra® 1,3 Propanediol lowers freeze points in applications like brewery heat transfer loops.

6 6 Glycol Cracking Study Results Glycol cracking occurs as heat transfer fluid sees temperature fluctuations, producing corrosive organic compounds and darkened fluid. This often results in premature replacement of the HTX fluid DTL evaluated the relative stability of three glycols, using the same inhibitor package PDOPGEG After testing, the Susterra®-based fluid exhibited significantly less darkening than the PG and EG fluids

7 7 Fluid Comparison: Nitrite Levels The sample containing inhibited Susterra® retained significantly more nitrites than the inhibited PG and EG samples

8 8 Fluid Comparison: Glycolate Levels The Susterra®-based fluid produced fewer glycolates than the inhibited PG and EG fluids

9 Susterra® Propanediol Achieves NSF International Nonfood Compounds Registration 2010 Press Release: DuPont Tate & Lyle Bio Products is excited to announce that Susterra ® propanediol has NSF International Nonfood Compounds Registration. Susterra ® is now acceptable as an ingredient for use in heat transfer fluids with incidental food contact (HTX-1) for use in and around food processing areas. Susterra ® propanediol offers formulators and suppliers a renewably sourced glycol base that meets the NSF International Registration Guidelines for Proprietary Substances and Nonfood Compounds. Formulators using NSF Registered Ingredients need only identify the Susterra ® propanediol name, the NSF Registration No , and concentration of Susterra ® in the finished product of their respective application form. 9 Ingredient for use in Heat Transfer Fluids with Incidental Food Contact (HTX-1) Susterra ® is approved as an ingredient for use in HTX with incidental food contact for use in and around food processing areas including breweries.

10 Appendix

11 Glycol Comparisons

12 Thermal Stability: Glycol Cracking Simulation This study was conducted to evaluate relative stability of three glycols, using the same inhibitor package (2.2% of #2792) Concentrated glycols: A: 1,2-Propanediol-based fluid (PG) B: 1,3-Propanediol-based fluid (PDO) C: Ethylene glycol-based fluid (EG) Simulate semi-closed loop solar HTX fluid application; boil samples in a reflux condition for 16 hours and analyze the residual HTX fluid: Reflux temperature: 362°F to 392°F (183.3°C to 200°C) –Boiling points at 1 ATM: PG = 371°F (188.3°C) PDO = 417°F (213.9°C) EG = 387°F (197.2°C) Solar thermal HTX often exceed 200  C at elevated pressure during low flow or stagnation events, causing glycol cracking and production of corrosive organic compounds When paired, the inhibitors and Susterra® exhibited superior thermal stability vs. the PG and EG inhibited glycols

13 The source is renewable Enabling a Renewable Economy... Oil RefiningChemistry Crops Biomass Feedstock Metabolic Engineering The source is not renewable From: To: Resins Molded Parts Fibers

14 Susterra® Life Cycle Assessment* Comparison From “cradle-to-gate,” the production of Susterra® consumes 40% less energy and reduces greenhouse gas emissions by more than 40% versus petroleum- based 1,3-propanediol and propylene glycol. *Susterra® LCA data based on Loudon process design data; peer reviewed by Five Winds International

15 Japan Case Study: HTX for Beverage Processing Susterra ® -based fluid is being used in Japan as a heat transfer fluid with low viscosity that is safe for use in food & beverage processing plants