Filed by Broadstone Acquisition Corp.
Pursuant to Rule 425 under the Securities Act of 1933
and deemed filed pursuant to Rule 14a-12
under the Securities Exchange Act of 1934
Subject Company: Broadstone Acquisition Corp.
Commission File No.: 001-39506
Date: December 6, 2021


E-mail by D.F. King, Proxy Solicitor


Dear BSN Stockholder,  


Please follow this link to the proxy statement filed recently by Broadstone Acquisition Corp. (“BSN”):


D.F. King has been retained by BSN to assist with their upcoming extraordinary general meeting on December 14, 2021. The record date for the extraordinary general meeting is November 10, 2021. If you are no longer a holder of BSN as of November 10th, please advise and we can remove you from any future correspondence. 


BSN would be happy to speak with you should you have any questions regarding the proposed business combination with Vertical Aerospace. If you would like to speak with BSN or should you have any questions on voting or the extraordinary general meeting, please do not hesitate to respond to this email and we’d be happy to assist.  


In case you are not the right person to contact regarding this meeting, it would be highly appreciated if you could pass on this email to the responsible person or department. 


Thank you in advance for your consideration.


Additional Information and Where to Find It


This communication relates to a proposed business combination between Vertical Aerospace Group Ltd. (together with its affiliates, “Vertical”) and Broadstone Acquisition Corp. (“Broadstone”) (the “proposed business combination”). This communication does not constitute (i) solicitation of a proxy, consent or authorization with respect to any securities or in respect of the proposed business combination or (ii) an offer to sell or exchange, or the solicitation of an offer to buy or exchange, any security of Vertical, Broadstone or any of their respective affiliates, nor shall there be any sale of securities in any jurisdiction in which such offer, sale or exchange would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.


This communication 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 proposed business combination. Before making any voting or investment decision, investors and security holders are urged to read the registration statement, the proxy statement/prospectus and all other relevant documents filed or that will be filed with the U.S. Securities and Exchange Commission (“SEC”) in connection with the proposed business combination as they become available because they will contain important information about the proposed business combination.


In connection with the proposed business combination, Vertical has filed a registration statement on Form F-4 with the SEC that includes a proxy statement of Broadstone in connection with Broadstone’s solicitation of proxies for the vote by Broadstone’s shareholders with respect to the proposed business combination and a prospectus of Vertical. Broadstone also will file other documents regarding the proposed business combination with the SEC. Broadstone’s shareholders and other interested persons are advised to read the preliminary proxy statement/prospectus and the amendments thereto and the definitive proxy statement/prospectus and documents incorporated by reference therein filed in connection with the proposed business combination, as these materials contain important information about Vertical, Broadstone, and the proposed business combination. The definitive proxy statement/prospectus and other relevant materials for the proposed business combination will be mailed to shareholders of Broadstone as of November 10, 2021, the record date of Broadstone’s extraordinary general meeting of shareholders for the purposes of voting on the proposed business combination.





Shareholders and investors will be able to obtain free copies of the registration statement, proxy statement/prospectus and all other relevant documents filed or that will be filed with the SEC by Vertical and Broadstone through the website maintained by the SEC at, or by directing a request to: In addition, the documents filed by Vertical may be obtained free of charge from Vertical’s website at or by written request to Vertical at Vertical Aerospace Group Ltd., Unit 1, Camwal Court, Chapel Street, Bristol, BS2 0UW, and the documents filed by Broadstone may be obtained free of charge by directing a request to:


Participants in Solicitation


Vertical and Broadstone and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Broadstone’s shareholders in connection with the proposed business combination. Additional information regarding the interests of those persons and other persons who may be deemed participants in the proposed business combination may be obtained by reading the proxy statement/prospectus regarding the proposed business combination. You may obtain free copies of these documents as described in the preceding paragraph.


Cautionary Statement Regarding Forward-Looking Statements


This communication includes “forward-looking statements” within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995. Broadstone’s and Vertical’s actual results may differ from their expectations, estimates and projections and, consequently, you should not rely on these forward-looking statements as predictions of future events. Words such as “expect,” “estimate,” “project,” “budget,” “forecast,” “anticipate,” “intend,” “plan,” “may,” “will,” “could,” “should,” “believes,” “predicts,” “potential,” “continue” and similar expressions (or the negative versions of such words or expressions) are intended to identify such forward-looking statements. These forward-looking statements include, without limitation, Broadstone’s and Vertical’s expectations with respect to future performance and anticipated financial impacts of the proposed business combination, the satisfaction of the closing conditions to the proposed business combination, and the timing of the completion of the proposed business combination. These forward-looking statements involve significant risks and uncertainties that could cause the actual results to differ materially from those discussed in the forward-looking statements. Most of these factors are outside Broadstone’s and Vertical’s control and are difficult to predict. Factors that may cause such differences include, but are not limited to: (1) the occurrence of any event, change, or other circumstances that could give rise to the termination of the definitive business combination agreement (the “Agreement”); (2) the outcome of any legal proceedings that may be instituted against Broadstone and Vertical following the announcement of the Agreement and the transactions contemplated therein; (3) the inability to complete the proposed business combination, including due to failure to obtain approval of the shareholders of Broadstone and Vertical, certain regulatory approvals, or satisfy other conditions to closing in the Agreement; (4) the occurrence of any event, change, or other circumstance that could give rise to the termination of the Agreement or could otherwise cause the transaction to fail to close; (5) the ability to implement business plans, forecasts and other expectations after the completion of the business combination, and identify and realize additional opportunities; (6) the potential inability of Vertical to produce or launch aircraft in the volumes and on timelines projected, (7) the potential inability of Vertical to obtain the necessary certifications on the timelines projected; (8) the potential that certain of Vertical’s strategic partnerships may not materialize into long-term partnership arrangements, (9) the impact of COVID-19 on Vertical’s business and/or the ability of the parties to complete the proposed business combination; (10) the inability to list Vertical’s ordinary shares on the NYSE following the proposed business combination; (11) the risk that the proposed business combination disrupts current plans and operations as a result of the announcement and consummation of the proposed business combination; (12) the ability to recognize the anticipated benefits of the proposed business combination, which may be affected by, among other things, competition, the ability of Vertical to grow and manage growth profitably, and retain its key employees; (13) costs related to the proposed business combination; (14) changes in applicable laws or regulations; (15) the possibility that Vertical or Broadstone may be adversely affected by other economic, business, and/or competitive factors; and (16) other risks and uncertainties indicated from time to time in the final prospectus of Broadstone for its initial public offering and the proxy statement/prospectus relating to the proposed business combination, including those under “Risk Factors” therein, and in Broadstone’s other filings with the SEC. Broadstone cautions that the foregoing list of factors is not exclusive. Broadstone cautions readers not to place undue reliance upon any forward-looking statements, which speak only as of the date made. Broadstone does not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in its expectations or any change in events, conditions, or circumstances on which any such statement is based.