Embracing New Technology to Pursue Competitive Advantages

Timing: Thursday, Feb. 26, 2026 (8:00 am - 9:00 am)

3. CO2 sequestration is a proven, cost-competitive and long-lasting strategy to lower CI, allowing ethanol producers to target Low-Carbon Premium markets. CO2 Sequestration: Geological Favorability Sylvain.Riba@geostocksandia.com
4. CO2 Sequestration: Technical Considerations • Bioethanol High-Purity CO₂ Streams Require Minimal Process Modification for Capture • Class VI / State Well Permitting Ensures No Contamination, No Induced Seismicity • CCS Implementation Requires a Full Project Lifecycle Approach starting ~4 years Sylvain.Riba@geostocksandia.com
5. New Revenue Streams 1.Make Formate (from CO2 ) generates 45Q Tax Credits 2.Use ethanol and formate to make ethyl formate 3.Add or re-purpose fermentation equipment to make e-formate biochemicals Reduced Operational Costs 1.DDGS silage preservation/ protein enhancement, CIP, waste heat integration 2.Higher offseason capacity utilization for counter-cyclical ethyl formate 3.Oxyfuel integration to capture more CO2 and lower fuel costs Biorefinery Fermentation Eqpt Ethanol CO2 Polisher Unit Phase 2 Ethyl Formate Phase 1 Formate Biochemica lss Phase 3 E-Formate Biochemicals Oxygen, H2 Waste Heat, Power Existing BioRefinery OCOchem Plant Products Ethanol Formate Electrolyzers E-Formate Feedstock for SynBio Conversion to Biochemicals Key: OCOchem Converts CO2 On-site OCOchem’s modular Carbon FluX Electrolyzer technology converts CO2 into formate precursor chemicals enabling new revenue streams and reduced operational costs for biorefineries
6. Made from just CO2 , water and electricity In industrially scaled CO2 electrolyzer cells Using advanced nano-catalyst gas diffusion electrodes Built as mass- produced modules to rapidly deploy At room pressure and temperature to load-follow At lower costs than current fossil fuel path. Shipping product now Building First Commercial Plant in Decatur, IL co-located with bioethanol refinery OCOchem’s Formate Pilot Plant 60 tons per year - Richland, Washington Technology Scaled Out, Proven.