As previously announced, Mount Rainier Acquisition Corp., a Delaware corporation (“RNER”), entered into a Business Combination Agreement, dated March 22, 2022 (the “Business Combination Agreement”), with Hub Cyber Security (Israel) Ltd., a company organized under the laws of the State of Israel (the “Company”), and Rover Merger Sub, Inc., a Delaware corporation and wholly-owned subsidiary of the Company (“Merger Sub”). Pursuant to the terms of the Business Combination Agreement, a business combination between RNER and the Company will be effected through Merger Sub merging with and into RNER (the “Merger”), with RNER surviving the Merger as a direct wholly-owned subsidiary of the Company. Capitalized terms used in this Current Report on Form 8-K but not otherwise defined herein have the meanings given to them in the Business Combination Agreement.

On June 19, 2022, RNER and the Company entered into an agreement (the "Termination Agreement") to terminate the Management Incentive Agreement previously entered into in connection with the Business Combination Agreement.

Concurrently with the execution of the Termination Agreement, RNER, the Company, and Merger Sub entered into the First Amendment to Business Combination Agreement to reflect RNER and the Company's entry into the Termination Agreement. With the exception of such amended terms, the Business Combination Agreement remains in full force and effect.

The foregoing descriptions of agreements and the transactions and documents contemplated thereby are not complete and are subject to and qualified in their entirety by reference to the First Amendment to Business Combination Agreement and the Termination Agreement, copies of which are filed with this Current Report on Form 8-K as Exhibits 2.1 and 10.1, respectively, and the terms of which are incorporated by reference herein.

Additional Information

In connection with the proposed Merger and related transactions, RNER will file a proxy statement, filed as part of the registration statement on Form F-4 to be filed by the Company with the SEC (as amended or supplemented from time to time, the “proxy statement/prospectus”), to be distributed to holders of RNER’s common stock in connection with RNER’s solicitation of proxies for the vote by RNER’s stockholders with respect to the proposed Merger and other matters as described in the proxy statement/prospectus. RNER urges investors, stockholders and other interested persons to read, when available, the proxy statement/prospectus as well as other documents filed with the SEC because these documents will contain important information about RNER, the Company and the proposed Merger and related transactions. A definitive proxy statement/prospectus will be mailed to stockholders of RNER as of a record date to be established for voting on the proposed Merger and related transactions. Stockholders will also be able to obtain a copy of the definitive proxy statement/prospectus, without charge by directing a request to: Mount Rainier Acquisition Corp., 256 W. 38th Street, 15th Floor, New York, NY 10018. The preliminary and definitive proxy statement/prospectus, once available, can also be obtained, without charge, at the SEC’s website (www.sec.gov).

Participants in the Solicitation

RNER, the Company, and their respective directors and executive officers may be considered participants in the solicitation of proxies from RNER’s stockholders with respect to the Transaction Proposals under the rules of the SEC. Information about the directors and executive officers of RNER and their ownership is set forth in RNER’s filings with the SEC, including its prospectus relating to its initial public offering, which was filed with the SEC on October 4, 2021. Additional information regarding the persons who may, under the rules of the SEC, be deemed participants in the solicitation of the stockholders of RNER in connection with the Transaction Proposals will be set forth in the proxy statement when it is filed with the SEC, filed as part of the registration statement on Form F-4 for the proposed transactions. These documents can be obtained free of charge from the sources indicated above.

Non-Solicitation

This Current Report on Form 8-K is not a proxy statement or solicitation of a proxy, consent or authorization with respect to any securities or in respect of the proposed transaction and shall not constitute an offer to sell or exchange, or a solicitation of an offer to buy or exchange the securities of RNER or the Company, nor shall there be any sale of any such securities in any state or jurisdiction in which such offer, solicitation, sale, or exchange would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

Forward-Looking Statements

This Current Report on Form 8-K and the attachments hereto contain forward-looking statements for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995, including statements about the parties’ ability to close the proposed transaction, the anticipated benefits of the proposed transaction, and the financial condition, results of operations, earnings outlook and prospects of RNER and/or the Company, and may include statements for the period following the consummation of the proposed transaction. Forward-looking statements are typically identified by words such as “plan,” “believe,” “expect,” “anticipate,” “intend,” “outlook,” “estimate,” “future,” “forecast,” “project,” “continue,” “could,” “may,” “might,” “possible,” “potential,” “predict,” “seem,” “should,” “will,” “would” and other similar words and expressions, but the absence of these words does not mean that a statement is not forward-looking.

The forward-looking statements are based on the current expectations of the management of RNER and the Company, as applicable, and are inherently subject to uncertainties and changes in circumstances and their potential effects and speak only as of the date of such statement. There can be no assurance that future developments will be those that have been anticipated. These forward-looking statements involve a number of risks, uncertainties or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those discussed and identified in public filings made with the SEC by RNER and the Company and the following:

Should one or more of these risks or uncertainties materialize or should any of the assumptions made by the management of RNER and the Company prove incorrect, actual results may vary in material respects from those expressed or implied in these forward-looking statements.

All subsequent written and oral forward-looking statements concerning the proposed business combination or other matters addressed in this Current Report on Form 8-K and attributable to RNER, the Company or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this Current Report on Form 8-K. Except to the extent required by applicable law or regulation, RNER and the Company undertake no obligation to update these forward-looking statements to reflect events or circumstances after the date of this Current Report on Form 8-K to reflect the occurrence of unanticipated events.