Solid Power DCRC+ Financial Overview

Disclaimer (cont'd) IMPORTANT INFORMATION AND WHERE TO FIND IT In connection with the Proposed Business Combination, DCRC plans to file a registration statement on Form S-4 (the "Registration Statement") with the SEC, which will include a proxy statement/prospectus of DCRC. DCRC also plans to file other documents and relevant materials with the SEC regarding the Proposed Business Combination. After the Registration Statement has been cleared by the SEC, a definitive proxy statement/prospectus will be mailed to the stockholders of DCRC. SECURITYHOLDERS OF DCRC AND SOLID POWER ARE URGED TO READ THE PROXY STATEMENT/PROSPECTUS (INCLUDING ALL AMENDMENTS AND SUPPLEMENTS THERETO) AND OTHER DOCUMENTS AND RELEVANT MATERIALS RELATING TO THE PROPOSED BUSINESS COMBINATION THAT WILL BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BEFORE MAKING ANY VOTING DECISION WITH RESPECT TO THE PROPOSED BUSINESS COMBINATION BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED BUSINESS COMBINATION AND THE PARTIES TO THE PROPOSED BUSINESS COMBINATION. Stockholders will be able to obtain free copies of the proxy statement/prospectus and other documents containing important information about DCRC and Solid Power once such documents are filed with the SEC through the website maintained by the SEC at http://www.sec.gov. PARTICIPANTS IN THE SOLICITATION DCRC and its directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of DCRC in connection with the Proposed Business Combination. Solid Power and its officers and directors may also be deemed participants in such solicitation. Securityholders may obtain more detailed information regarding the names, affiliations and interests of certain of DCRC's executive officers and directors in the solicitation by reading DCRC's final prospectus filed with the SEC on March 25, 2021 and the proxy statement/prospectus and other relevant materials filed with the SEC in connection with the Proposed Business Combination when they become available. Information concerning the interests of DCRC's participants in the solicitation, which may, in some cases, be different than those of DCRC's stockholders generally, will be set forth in the proxy statement/prospectus relating to the Proposed Business Combination when it becomes available. FINANCIAL INFORMATION; NON-GAAP FINANCIAL MEASURES The financial information and data contained in this Presentation is unaudited and does not conform to Regulation S-X promulgated under the Securities Act. Accordingly, such information and data may not be included in, may be adjusted in or may be presented differently in, any proxy statement/prospectus to be filed by DCRC with the SEC. Some of the financial information and data contained in this Presentation, such as EBITDA, EBITDA Margin and Free Cash Flow, have not been prepared in accordance with United States generally accepted accounting principles ("GAAP"). DCRC and Solid Power believe that these non-GAAP financial measures provide useful information to management and investors regarding certain financial and business trends relating to Solid Power's financial condition and results of operations. DCRC and Solid Power believe that the use of these non-GAAP financial measures provides an additional tool for investors to use in evaluating projected operating results and trends in and in comparing Solid Power's financial measures with other similar companies, many of which present similar non-GAAP financial measures to investors. Management does not consider these non-GAAP measures in isolation or as an alternative to financial measures determined in accordance with GAAP. The principal limitation of these non-GAAP financial measures is that they exclude significant expenses and income that are required by GAAP to be recorded in Solid Power's financial statements. In addition, they are subject to inherent limitations as they reflect the exercise of judgments by management about which expenses and income are excluded or included in determining these non- GAAP financial measures. TRADEMARKS AND TRADE NAMES Solid Power and DCRC own or have rights to various trademarks, service marks and trade names that they use in connection with the operation of their respective businesses. This Presentation also contains trademarks, service marks and trade names of third parties, which are the property of their respective owners. The use or display of third parties' trademarks, service marks, trade names or products in this Presentation is not intended to, and does not imply, a relationship with Solid Power or DCRC, or an endorsement or sponsorship by or of Solid Power or DCRC. Solely for convenience, the trademarks, service marks and trade names referred to in this Presentation may appear with the ®, TM or SM symbols, but such references are not intended to indicate, in any way, that Solid Power or DCRC will not assert, to the fullest extent under applicable law, their rights or the right of the applicable licensor to these trademarks, service marks and trade names. Solid Power DCRC+ 3

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