Press Release

Filament Health Announces Health Canada Authorization For Phase 2 Clinical Trial Studying Botanical Psilocybin For Opioid Use Disorder

October 10, 2023

Filament-sponsored research will study its botanical psilocybin drug candidate, PEX010

Vancouver, British Columbia, October 10, 2023 – Filament Health Corp. (OTCQB:FLHLF) (NEO:FH) (FSE:7QS) (“Filament” or the “Company”), a clinical‐stage natural psychedelic drug development company, today announced Health Canada approval for a phase 2 clinical trial at the University of British Columbia (UBC). The trial will study the effects of PEX010, Filament’s botanical psilocybin drug candidate, for the treatment of opioid use disorder (OUD).

“Opioid use disorder is one of the most challenging public health issues and a major contributor to the escalating overdose crisis in Canada,” said Dr. Christian Schütz, Professor of Psychiatry at UBC and Principal Investigator for the trial. “This trial will assess the safety and feasibility of delivering psilocybin in the treatment of OUD, and evaluate potential changes in participants’ opioid use. We are grateful to Filament Health for funding and facilitating this trial.”

Standard treatment for OUD is opioid agonist therapy (OAT). But less than half of those who start OAT remain for 6 months, and approximately 1 in 10 patients receiving professional help due to an overdose were receiving OAT. There is a critical need for research into new interventions to support those with OUD, and research indicates that psychedelic-assisted therapy may be a promising approach.

“This is a landmark moment in Filament’s mission to support the treatment of substance use disorders with naturally-derived psychedelics,” said Benjamin Lightburn, Chief Executive Officer and Co-Founder of Filament Health. “As a Vancouver-based company, we are quite aware of the ongoing toxic drug crisis fuelled by OUD. We are proud to sponsor this much-needed research by Dr. Schütz and his team.”

ABOUT FILAMENT HEALTH (OTCQB:FLHLF) (NEO:FH) (FSE:7QS)

Filament Health is a clinical-stage natural psychedelic drug development company. We believe that safe, standardized, naturally-derived psychedelic medicines can improve the lives of many, and our mission is to see them in the hands of everyone who needs them as soon as possible. Filament’s platform of proprietary intellectual property enables the discovery, development, and delivery of natural psychedelic medicines for clinical development. We are paving the way with what we believe to be the first-ever natural psychedelic drug candidates.

Learn more at www.filament.health and on Twitter, Instagram, and LinkedIn.

MEDIA RELATIONS

Anna Cordon, Director of Communications

anna@filament.health

INVESTOR RELATIONS

ir@filament.health

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Important Information About the Proposed Business Combination and Where to Find It

This communication may relate to the proposed business combination (the “Proposed Business Combination”) between Jupiter Acquisition Corporation, a Delaware corporation (“Jupiter”), and Filament Health Corp., a corporation organized under the laws of British Columbia (“Filament”), and may be deemed to be solicitation material in respect of the Proposed Business Combination. The Proposed Business Combination will be submitted to Jupiter’s stockholders for their consideration and approval. 1427702 B.C. Ltd., a corporation organized under the laws of British Columbia (“TopCo”), has filed a registration statement on Form F-4 (File No. 333-273972) and amendments and supplements thereto (the “Registration Statement”) with the U.S. Securities and Exchange Commission (the “SEC”), which contains a preliminary proxy statement/prospectus that constitutes (i) a preliminary proxy statement in connection with Jupiter’s solicitation of proxies for the vote by Jupiter’s stockholders to approve the Proposed Business Combination and other matters as described in the Registration Statement and (ii) a preliminary prospectus relating to the offer of TopCo securities to be issued in the Proposed Business Combination. Jupiter and TopCo also intend to file other relevant documents with the SEC and, in the case of Filament and TopCo, with the applicable Canadian securities regulatory authorities, regarding the Proposed Business Combination. After the Registration Statement has been declared effective, Jupiter will mail the definitive proxy statement/prospectus and other relevant documents to its stockholders as of the record date established for voting on the Proposed Business Combination. The Proposed Business Combination will also be submitted to the securityholders of Filament for their consideration and approval. JUPITER’S STOCKHOLDERS AND OTHER INTERESTED PERSONS ARE ADVISED TO READ THE REGISTRATION STATEMENT, THE PRELIMINARY PROXY STATEMENT/PROSPECTUS, ANY AMENDMENTS OR SUPPLEMENTS THERETO AND, ONCE AVAILABLE, THE DEFINITIVE PROXY STATEMENT/PROSPECTUS IN CONNECTION WITH JUPITER’S SOLICITATION OF PROXIES FOR ITS SPECIAL MEETING OF STOCKHOLDERS TO BE HELD TO APPROVE, AMONG OTHER THINGS, THE PROPOSED BUSINESS COMBINATION, BECAUSE THESE DOCUMENTS CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT JUPITER, FILAMENT, TOPCO AND THE PROPOSED BUSINESS COMBINATION.

Jupiter’s stockholders and other interested parties may also obtain a copy of the Registration Statement, the preliminary proxy statement/prospectus, any amendments or supplements thereto and, once available, the definitive proxy statement/prospectus, as well as other documents filed with the SEC regarding the Proposed Business Combination and other documents filed with the SEC by Jupiter, without charge, at the SEC’s website located at www.sec.gov, or by directing a request to: Jupiter Acquisition Corporation, 11450 SE Dixie Hwy, Suite 105, Hobe Sound, FL 33455. As the Registration Statement contains certain information about Filament, the Registration Statement has also been made available under Filament’s profile on SEDAR at www.sedar.com.

INVESTMENT IN ANY SECURITIES DESCRIBED HEREIN HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SEC OR ANY OTHER REGULATORY AUTHORITY, NOR HAS ANY AUTHORITY PASSED UPON OR ENDORSED THE MERITS OF THE PROPOSED BUSINESS COMBINATION PURSUANT TO WHICH ANY SECURITIES ARE TO BE OFFERED OR THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED HEREIN. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

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 and forward-looking information within the meaning of applicable Canadian securities laws. Forward-looking statements may be identified by the use of words such as “estimate,” “plan,” “project,” “forecast,” “intend,” “will,” “expect,” “anticipate,” “believe,” “could,” “continue,” “may,” “might,” “outlook,” “possible,” “potential,” “predict,” “scheduled,” “should,” “would.” “seek,” “target” or other similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. Generally, statements that are not historical facts, including statements concerning possible or assumed future actions, business strategies, events or results of operations, and any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. These statements are based on various assumptions, whether or not identified in this communication, and on the current beliefs and expectations of Filament’s, TopCo’s and Jupiter’s management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as and must not be relied on by any investor as a guarantee, an assurance, a prediction, or a definitive statement of fact or probability. Although Filament, TopCo and Jupiter believe that their respective plans, intentions, and expectations reflected in or suggested by these forward-looking statements are reasonable, none of Filament, TopCo or Jupiter can assure you that any of them will achieve or realize these plans, intentions, or expectations. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of Filament, TopCo and Jupiter. These forward-looking statements are subject to a number of risks and uncertainties, including (i) the occurrence of any event, change or other circumstances that could give rise to the termination of the Proposed Business Combination; (ii) the failure of either Jupiter or Filament prior to the Proposed Business Combination, or TopCo after the Proposed Business Combination, to execute their business strategy; (iii) the outcome of any legal proceedings that may be instituted against Filament, TopCo or Jupiter or others following the announcement of the Proposed Business Combination; (iv) the inability to complete the Proposed Business Combination due to the failure to obtain any necessary interim order or other required court orders in respect of Filament’s statutory plan of arrangement under the Business Corporations Act (British Columbia) with respect to the Proposed Business Combination or the failure to obtain the approval of Filament’s shareholders or Jupiter’s stockholders or to satisfy other conditions to closing; (v) changes to the proposed structure of the Proposed Business Combination that may be required or appropriate as a result of applicable laws or regulations or as a condition to obtaining regulatory approval of the Proposed Business Combination; (vi) the ability to meet stock exchange listing standards prior to and following the consummation of the Proposed Business Combination; (vii) the risk that the Proposed Business Combination disrupts current plans and operations of Filament as a result of the announcement and consummation of the Proposed Business Combination; (viii) the ability to recognize the anticipated benefits of the Proposed Business Combination, which may be affected by, among other things, competition and the ability of TopCo to grow and manage growth profitably, maintain relationships with customers and retain its management and key employees; (ix) costs related to the Proposed Business Combination; (x) failure to comply with and stay abreast of changes in laws or regulations applicable to Filament’s business, including health and safety regulations and policies; (xi) Filament’s estimates of expenses and profitability and underlying assumptions with respect to redemptions by Jupiter’s stockholders and purchase price and other adjustments; (xii) any downturn or volatility in economic or business conditions; (xiii) the effects of COVID-19 or other epidemics or pandemics; (xiv) changes in the competitive environment affecting Filament or its customers, including Filament’s inability to introduce, or obtain regulatory approval for, new products; (xv) the failure to obtain additional capital on acceptable terms; (xvi) the impact of pricing pressure and erosion; (xvii) failures or delays in Filament’s supply chain; (xviii) Filament’s ability to protect its intellectual property and avoid infringement by others, or claims of infringement against Filament; (xix) the possibility that Filament, TopCo or Jupiter may be adversely affected by other economic, business and/or competitive factors; (xx) the failure of Filament or TopCo to respond to fluctuations in foreign currency exchange rates; and (xxi) Filament’s estimates of its financial performance; and those factors discussed in documents of Jupiter or TopCo filed, or to be filed, with the SEC. If any of these risks materialize or any assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. There may be additional risks that none of Filament, TopCo or Jupiter presently knows or that Filament, TopCo and Jupiter currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward-looking statements reflect Filament’s, TopCo’s and Jupiter’s expectations, plans, or forecasts of future events and views as of the date of this communication. Filament, TopCo and Jupiter anticipate that subsequent events and developments will cause Filament’s, TopCo’s and Jupiter’s assessments to change. However, while Filament, TopCo and Jupiter may elect to update these forward-looking statements at some point in the future, Filament, TopCo and Jupiter specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing Filament’s, TopCo’s or Jupiter’s assessments as of any date after the date of this communication. Accordingly, undue reliance should not be placed upon the forward-looking statements.

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Participants in Solicitation

Jupiter, Filament, TopCo and certain of their respective directors, executive officers, and other members of management and employees may, under SEC rules, be deemed to be participants in the solicitations of proxies from Jupiter’s stockholders in connection with the Proposed Business Combination. Information regarding Jupiter’s directors and executive officers is available in its Annual Report on Form 10-K for the fiscal year ended December 31, 2022, which was filed with the SEC on March 10, 2023. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies from Jupiter’s stockholders in connection with the Proposed Business Combination is set forth in the Registration Statement, and the preliminary proxy statement/prospectus included therein, and will be set forth in the definitive proxy statement/prospectus when it is filed with the SEC. Additional information regarding the participants in the proxy solicitation and a description of their direct and indirect interests is included in the Registration Statement, and the proxy statement/prospectus included therein, and will be included in the definitive proxy statement/prospectus when it becomes available. Jupiter’s stockholders, potential investors, and other interested persons should carefully read the Registration Statement, the preliminary proxy statement/prospectus, any amendments or supplements thereto and, once available, the definitive proxy statement/prospectus, and related documents filed with the SEC, before making any voting or investment decisions. These documents, once available, can be obtained free of charge from the sources indicated above.

No Assurances

There can be no assurance that the Proposed Business Combination will be completed, nor can there be any assurance, if the Proposed Business Combination is completed, that the potential benefits of the Proposed Business Combination will be realized.