Solid Power DCRC+ Financial Overview

Pro Forma Equity Ownership US$ in millions, unless otherwise stated Sources and Uses Capitalization Financials and Valuation SOURCES USES SHARE PRICE $10.00 DCRC Cash In Trust¹ $350 Rollover Equity $1,239 Pro Forma Shares Outstanding³ 184.2 PIPE Proceeds 165 Cash to Balance Sheet¹ 599 Equity Value $1,842 Rollover Equity 1,239 Deal Expenses 40 Less: Pro Forma Net Cash (596) Existing Cash and Equivalents² 124 Enterprise Value $1,246 Total $1,878 Total $1,878 Pro Forma Ownership³,4 Commentary¹ $350 million DCRC cash in trust + $165 million PIPE $1.2 billion pro-forma enterprise value Implied 0.7x 2028E Revenue and 2.6x 2028E EBITDA Strong balance sheet with an estimated $599 million cash upon closing of the transaction Fully financed business plan with flexibility to accelerate growth organically and via M&A Solid Power Existing Shareholders 67% DCRC Shareholders 19% Founder Shares 5% PIPE Investors 9% 1. Assumes no redemption by DCRC's public stockholders. 2. As May 31, 2021. 3. Comprised of 123.9 million shares owned by existing Solid Power shareholders, 16.5 million PIPE shares, 35.0 million DCRC shares outstanding and 8.8 million Founder Shares. DCRC shares outstanding subject to exercise of redemption rights in connection with DCRC shareholder vote. 4. Excludes public and private warrants of DCRC. Solid Power DCRC+ 39

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