Solid Power SPAC Presentation Deck

Pro Forma Equity Ownership US$ in millions, unless otherwise stated Sources and Uses SOURCES DCRC Cash In Trust¹ PIPE Proceeds Rollover Equity Existing Cash and Equivalents² Total Commentary¹ ■ ■ $350 165 ■ 1,239 124 $1,878 USES Rollover Equity Cash to Balance Sheet¹ Deal Expenses Total $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 $1,239 599 40 $1,878 Fully financed business plan with flexibility to accelerate growth organically and via M&A Capitalization SHARE PRICE Pro Forma Shares Outstanding³ Equity Value Less: Pro Forma Net Cash Enterprise Value Pro Forma Ownership ³,4 Solid Power Existing Shareholders 67% Financials and Valuation $10.00 184.2 $1,842 (596) $1,246 DCRC Shareholders 19% 9% Founder Shares 5% PIPE Investors 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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