Markforged SPAC Presentation Deck

Disclaimer Disclaimer. This presentation ("Presentation") contemplates a business combination (the "Business Combination") between one ("one") and Markforged, Inc. ("Markforged" or the "Company"). The information contained herein does not purport to be all-inclusive and neither of one, Markforged, nor any of their respective affiliates nor any of its or their control persons, officers, directors, employees or representatives makes any representation or warranty, express or implied, as to the accuracy, completeness or reliability of the information contained in this Presentation. You should consult your own counsel and tax and financial advisors as to legal and related matters concerning the matters described herein, and, by accepting this Presentation, you confirm that you are not relying upon the information contained herein to make any decision. Forward-Looking Statements. Certain statements in this Presentation may be considered forward-looking statements. Forward-looking statements generally relate to future events or one's or the Company's future financial or operating performance. For example, statements concerning the following include forward-looking statements: development plans for Markforged's products; Markforged's sales projections and financial estimates; the size and growth of the additive manufacturing market; the adoption of Markforged's products in the manufacturing industry and other industries; and the potential effects of the Business Combination on the Company. In some cases, you can identify forward-looking statements by terminology such as "may", "should", "expect", "intend", "will", "estimate", "anticipate", "believe", "predict", "potential" or "continue", or the negatives of these terms or variations of them or similar terminology. Such forward-looking statements are subject to risks, uncertainties, and other factors which could cause actual results to differ materially from those expressed or implied by such forward looking statements. These forward-looking statements are based upon estimates and assumptions that, while considered reasonable by one and its management, and Markforged and its management, as the case may be, are inherently uncertain. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Factors that may cause actual results to differ materially from current expectations include, but are not limited to, various factors beyond management's control including (i) the inability of the parties to successfully or timely consummate the proposed business combination, including the risk that any required regulatory approvals are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect the combined company or the expected benefits of the proposed business combination or that the approval of the shareholders of one is not obtained; (ii) the ability to maintain the listing of the combined company's securities on the NYSE; (iii) the inability to complete the PIPE; (iv) the risk that the proposed business combination disrupts current plans and operations of Markforged as a result of the announcement and consummation of the transaction described herein; (v) the risk that any of the conditions to closing are not satisfied in the anticipated manner or on the anticipated timeline; (vi) the failure to realize the anticipated benefits of the proposed business combination; (vii) risks relating to the uncertainty of the projected financial information with respect to Markforged and costs related to the proposed business combination; (viii) the outcome of any legal proceedings that may be instituted against the parties following the announcement of the proposed business combination; (ix) the amount of redemption requests made by one's public shareholders; (x) the effects of the COVID-19 pandemic and general economic conditions; (xi) and other assumptions, risks, uncertainties and factors set forth in the sections entitled "Projected Financial Information," "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements" in one's Amendment No. 1 to Registration Statement on Form S-4 relating to the Business Combination, dated May 14, 2021 (the "Registration Statement"), and other filings with the Securities and Exchange Commission ('SEC"), as well as factors associated with companies, such as the Company, that are engaged in additive manufacturing. Nothing in this Presentation should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. You should not place undue reliance on forward-looking statements in this Presentation, which speak only as of the date they are made and are qualified in their entirety by reference to the cautionary statements herein. Neither one nor the Company undertakes any duty to update these forward-looking statements. Additional Information. In connection with the proposed Business Combination, one has filed the Registration Statement containing a preliminary proxy statement/prospectus of one, and after the registration statement is declared effective, one will mail a definitive proxy statement/prospectus relating to the proposed Business Combination to its shareholders. This Presentation does not contain all the information that should be considered concerning the proposed Business Combination and is not intended to form the basis of any investment decision or any other decision in respect of the Business Combination. one's shareholders and other interested persons are advised to read the Registration Statement and the amendments thereto and the definitive proxy statement/prospectus and other documents filed in connection with the proposed Business Combination, as these materials will contain important information about Markforged, one and the Business Combination. When available, the definitive proxy statement/prospectus and other relevant materials for the proposed Business Combination will be mailed to shareholders of one as of a record date to be established for voting on the proposed Business Combination. Shareholders will also be able to obtain copies of the Registration Statement, the definitive proxy statement/prospectus and other documents filed with the SEC, without charge, once available, at the SEC's website at www.sec.gov, or by directing a request to: one, 16 Funston Avenue, Suite A, The Presidio of San Francisco, San Francisco, CA 94129. 2

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