LanzaTech SPAC Presentation Deck

AMCI has Identified LanzaTech as a Market Leader in the CarbonTech Ecosystem Key Company Highlights Established Carbon Tech company transforming carbon emissions to sustainable materials and sustainable aviation fuel ("SAF") ■ Disruptive synthetic biology (synbio) platform integrated with proven engineering and commercial- scale operations Profitable, scalable decarbonization solution for industrial sectors today 2 commercial plants operating ■ 7 additional plants under construction Capital-light, recurring revenue licensing model Rapidly growing demand for CarbonSmart™ chemicals from leading consumer brands and SAF from global airlines Founding shareholder of LanzaJet, a leading SAF company spun out in 2020 and backed by British Airways, Mitsui, Shell, and Suncor Blue-chip commercial partners and investors Exceptional management team with proven execution capability LanzaTech Pro Forma Capital Structure¹ ■ LanzaTech shareholders to roll over 100% of their equity ■AMCI II (NASDAQ:AMCIU) has ~$150mm of cash in trust ■ PIPE of ~$125mm as of March 7, 2022, sourced from existing investors, commercial partners, and new investors ■ LanzaTech adds operating cash balance of $85mm projected as of March 31, 2022 ~$315mm cash on the balance sheet pro forma from transaction² to fund growth Transaction Value ■ Pre-money enterprise value of ~$1.7bn ■ Attractive valuation versus synthetic biology, sustainable materials / fuels, and decarbonization peers World's first public carbon capture and transformation company ("CCT") AMCI Acquisition Corp. II Presenters Nimesh Patel CEO & Director Brian Beem President & Director LanzaTech Dr. Jennifer Holmgren CEO & Director Geoff Trukenbrod Chief Financial Officer Great Hill PARTNERS CA CHRYSCAPITAL FIRST RESERVE CORPORATION AS MERRILL A BANK OF AMERICA COMPANY Honeywell Uop aginity STERLING PARTNERS Source: LanzaTech management ¹Business Combination Agreement requires minimum net proceeds of $250mm to close. 2Reflects SPAC and PIPE proceeds, assuming no redemptions, and projected balance sheet cash as of 31-Mar-2022, and is stated net of transaction fees, and does not include any further Projected Financing. 4

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