Benson Hill SPAC Presentation Deck

BENSON HILL Star Peak II has Identified Benson Hill as the Leading Food Technology Platform Driving the Plant-Based Revolution The Business Offering Size Valuation Capital Structure Benson Hill Investors Include ● ● ● ● ● ● ● Consumer-centric approach driving crop innovation to improve food by unlocking the natural genetic diversity of plants Leading platform that integrates data science with plant genomics and food science Near term focus on supplying plant-based ingredients Star Peak Corp. II (NYSE: STPC) is a special purpose acquisition company with ~$403 million of cash in trust PIPE size of $225 million Pro forma enterprise value of ~$1.35 billion Attractively valued entry multiple Benson Hill shareholders rolling 100% of their equity ~$625 million gross proceeds (assuming no redemptions) retained to fully finance forecasted growth G/ WWHEATSHEAF LDC. Alphabet s2gventures Prelude Louis Dreyfus Company Louis Dreyfus VENTURES Leadership BENSON HILL BUNGE LEWIS & CLARK VENTURES CDPQ emart Source: Benson Hill and Star Peak. Gross proceeds include Star Peak II cash in trust and common stock PIPE at 10.00 per share. STAR PEAK Matt Crisp President & CEO 20 Natalie DiNicola, Chief of Staff Mike C. Morgan Chairman DeAnn Brunts CFO Adam Javan Chief Strategy Officer Eric Scheyer CEO Jason Bull CTO 7 Anthony Kingsley Director, Impact & ESG

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