GMFIU Aetherium Acquisition Corporation

Aetherium Acquisition Corp.

79B Pemberwick Rd.

Greenwich, CT 06831

PRELIMINARY PROXY STATEMENT

FOR

SPECIAL MEETING OF STOCKHOLDERS

TO BE HELD DECEMBER 21, 2022

FIRST MAILED ON OR ABOUT [   ], 2023

Date, Time and Place of the Special Meeting

The enclosed proxy is solicited by the Board of Directors (the “Board”) of Aetherium Acquisition Corp. (“the Company,” “Aetherium” or “we”), a Delaware corporation, in connection with the Special Meeting of Stockholders to be held on [   ], 2023 at 10:30 a.m. Eastern time for the purposes set forth in the accompanying Notice of Meeting. Due to the COVID-19 pandemic, Aetherium will be holding the Special Meeting, and any adjournments thereof, via teleconference using the following dial-in information:

The principal executive office of the Company is 79B Pemberwick Rd., Greenwich, CT 06831, and its telephone number, including area code, is (650) 450-6836.

Purpose of the Special Meeting

At the Special Meeting, you will be asked to consider and vote upon the following matters:

(i) Proposal 1 - A proposal to amend Aetherium’s amended and restated certificate of incorporation (the “Charter”), to extend the date by which Aetherium must consummate a business combination on a month to month basis up to twelve (12) times (the “Charter Amendment”), each such extension for an additional one (1) month period (each an “Extension”), from April 3, 2023 to April 3 2024 (the latest such date actually extended being referred to as the “Extended Termination Date”) (we refer to this proposal as the “Charter Amendment Proposal”);

(ii) Proposal 2 — A proposal to amend Aetherium’s investment management trust agreement, dated as of December 1029, 2021 (the “Trust Agreement”), by and between the Company and Continental Stock Transfer & Trust Company (the “Trustee”), allowing the Company to extend the Extended Termination Date another twelve (12) times, each such Extension for an additional one (1) month period, until April 3, 2024, by depositing into the Trust Account $0.0575 per non-redeeming unit (the “Extension Payment”) for each one-month Extension (the “Trust Amendment”) (we refer to this proposal as the “Trust Amendment Proposal”);

(iii) Proposal 3 - A proposal to direct the chairman of the Special Meeting to adjourn the Special Meeting to a later date or dates (the “Adjournment”), if necessary, to permit further solicitation and vote of proxies if, based upon the tabulated vote at the time of the Special Meeting, there are not sufficient votes to approve the foregoing proposal (we refer to this proposal as the “Adjournment Proposal”); and

(iv) To act on such other matters as may properly come before the Special Meeting or any adjournment or adjournments thereof.

Background

Aetherium was incorporated on April 15, 2021 and was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses, which we refer to as our “Initial Business Combination”. As disclosed in the Company’s prospectus dated December 29, 2021 in connection with its initial public offering (the “IPO”), pursuant to the Trust Agreement and the Company’s Charter, Aetherium has until April 3, 2023 to complete the Initial Business Combination. If the Initial Business Combination is not completed prior to April 3, 2023, Aetherium can extend the time to complete the Initial Business Combination only by the amendment of its Charter which requires the approval of at least 65% of the holders of the Company’s outstanding Common Stock, which include the holders of both the Class A common stock and the Class B common stock.

The Company is still in the process of identifying a potential business combination target company for an Initial Business Combination.

The purpose of the Charter Amendment Proposal and the Trust Amendment Proposal is to allow the Company additional time to find an appropriate company as a target in order to complete an Initial Business Combination. The Company’s prospectus for its IPO and its Charter provide that the Company has until April 3, 2023 (the “Original Termination Date”) to complete an Initial Business Combination. There is not sufficient time before April 3, 2023 for the Company to complete an Initial Business Combination given the projected timetable, to file either a registration statement on Form S-4 under the Securities Act of 1933 (the “Initial Business Combination Registration Statement”) with the Securities and Exchange Commission (the “SEC”) and having it declared effective prior to holding a Special Meeting of the Company to consider an Initial Business Combination or a proxy statement, and having it cleared by the SEC prior to holding a Special Meeting of the Company to consider any Initial Business Combination (the “Initial Business Combination Proxy Statement”). Accordingly, the Board has determined that it is in the best interests of our stockholders to extend the date that the Company has to consummate an Initial Business Combination.

If the Charter Amendment Proposal and the Trust Amendment Proposal are approved, the Company would have up to an additional twelve months after the Original Termination Date to consummate the Initial Business Combination until April 3, 2024, which is a total of up to 27 months to complete an Initial Business Combination after the Company’s IPO.

Upon the closing of the Company’s IPO, approximately $116.7 million was placed in a trust account (“Trust Account”) located in the United States with Continental Stock Transfer & Trust Company acting as trustee, and held as cash or invested only in U.S. government securities.

The Board has fixed the close of business on [   ], 2023 as the record date for determining the Company’s stockholders entitled to receive notice of and to vote at the Special Meeting and any adjournment thereof (the “Record Date”). On the Record Date, there were 12,028,500 shares of Class A common stock, $0.0001 par value, issued and outstanding (the “Class A common stock” or “Public Shares”) and 2,875,000 shares of Class B common stock, par value $0.0001 per share, issued and outstanding. Only holders of record of the Company’s Common Stock on the Record Date are entitled to have their votes counted at the Special Meeting or any adjournment thereof.

The Company’s Sponsor, or any of its affiliates (the “Contributors”) have agreed that if the Charter Amendment Proposal and the Trust Amendment Proposal are approved, then, upon five days’ advance notice prior to the applicable deadline, they will contribute to the Trust Account, within two business days prior to the applicable deadline, $0.0575 per non-redeeming unit for each one-month Extension, paid on a month-to-month and as-needed basis (each being referred to herein as a “Contribution”), to extend the Combination Period for an additional one (1) month period each time, for up to twelve (12) times, until April 3, 2024.

The Contributors will not make any Contribution unless the Charter Amendment Proposal and the Trust Amendment Proposal are both approved and the Extension Termination Date is extended. The Contribution(s) will not bear any interest. The Contributions will be lost by the Contributors if the Company is unable to consummate an Initial Business Combination except to the extent of any funds held outside of the Trust Account. The Company will have the sole discretion whether to continue extending the time to complete the Initial Business Combination until the Extended Termination Date, and if the Company determines not to continue extending for an additional period, any obligation to make additional Contributions will terminate. If this occurs, or if the Company’s board of directors otherwise determines that the Company will not be able to consummate an Initial Business Combination by the Extended Termination Date and does not wish to seek an additional Extension, the Company would wind up the Company’s affairs and redeem 100% of the outstanding Public Shares in accordance with the same procedures set forth below that would be applicable if the Charter Amendment Proposal and the Trust Amendment Proposal are not approved.

The purpose of the Charter Amendment Proposal and the Trust Amendment Proposal is to allow Aetherium more time to complete its Initial Business Combination. Aetherium’s Charter provides that Aetherium has only until April 3, 2023 to complete the Initial Business Combination.

QUESTIONS AND ANSWERS ABOUT THE SPECIAL MEETING

These Questions and Answers are only summaries of the matters they discuss. They do not contain all of the information that may be important to you. You should carefully read the entire document, including the annexes to this proxy statement.

Our Charter provides for the return of the IPO proceeds held in the Trust Account to the holders of Public Shares if there is no qualifying business combination(s) consummated on or before April 3, 2023. The Company has not yet identified a potential business combination target company for an Initial Business Combination.

The Company believes that given its expenditure of time, effort, and money searching for potential business combination opportunities, the Public Stockholders of the Company should be given an opportunity to consider and vote on an Initial Business Combination. We do not believe that we will have sufficient time to consummate the Initial Business Combination prior to April 3, 2023. Therefore, we are seeking approval of the Charter Amendment Proposal and the Trust Amendment Proposal.

The Board believes that it is in the best interests of the stockholders to continue the Company’s existence in order to allow the Company more time to complete the Initial Business Combination. Accordingly, the Board is proposing the Charter Amendment Proposal and the Trust Amendment Proposal to extend the Company’s corporate existence and time to complete an Initial Business Combination.

YOU ARE NOT BEING ASKED TO VOTE ON A BUSINESS COMBINATION AT THIS TIME. IF THE CHARTER AMENDMENT PROPOSAL IS APPROVED AND THE CHARTER AMENDMENT IS FILED AND YOU DO NOT ELECT TO REDEEM YOUR PUBLIC SHARES NOW, YOU WILL RETAIN THE RIGHT TO VOTE ON AN INITIAL BUSINESS COMBINATION IF AND WHEN IT IS SUBMITTED TO STOCKHOLDERS AND THE RIGHT TO REDEEM YOUR PUBLIC SHARES FOR A PRO RATA PORTION OF THE TRUST ACCOUNT IN THE EVENT AN INITIAL BUSINESS COMBINATION IS APPROVED AND COMPLETED OR THE COMPANY HAS NOT CONSUMMATED A BUSINESS COMBINATION BY THE EXTENDED TERMINATION DATE.

Accordingly, we believe that the Charter Amendment Proposal and the Trust Amendment Proposal is consistent with the spirit in which the Company offered its securities to the public in the IPO.

You will have redemption rights in connection with the Charter Amendment Proposal and the Trust Amendment Proposal.

If the Charter Amendment Proposal and the Trust Amendment Proposal are approved, with respect to holders’ right to redeem, the Company will (i) remove from the Trust Account an amount (the “Withdrawal Amount”) equal to the pro rata portion of funds available in the Trust Account relating to any Public Shares redeemed by holders in connection with the Charter Amendment Proposal and the Trust Amendment Proposal, if any, and (ii) deliver to the holders of such redeemed Public Shares their pro rata portion of the Withdrawal Amount. The remainder of such funds shall remain in the Trust Account and be available for use by the Company to complete an Initial Business Combination on or before each Extension date, if applicable. Holders of Public Shares who do not redeem their Public Shares now will retain their redemption rights and their ability to vote on the Initial Business Combination.

Our executive officers and directors are not entitled to redeem such shares in connection with the Charter Amendment Proposal and the Trust Amendment Proposal. On the Record Date, they held 2,875,000 shares of Class B common stock and 528,500 shares of Class A common stock representing approximately 22.8% of the Company’s issued and outstanding shares of Common Stock.

If we are forced to liquidate the Trust Account, we anticipate that we would distribute to our Public Stockholders the amount in the Trust Account calculated as of the date that is two days prior to the distribution date (including any accrued interest). Prior to such distribution, we would be required to assess all claims that may be potentially brought against us by our creditors for amounts they are actually owed and make provision for such amounts, as creditors take priority over our Public Stockholders with respect to amounts that are owed to them. We cannot assure you that we will properly assess all claims that may be potentially brought against us. As such, our stockholders could potentially be liable for any claims of creditors to the extent of distributions received by them as an unlawful payment in the event we enter an insolvent liquidation. Furthermore, while we will seek to have all vendors and service providers (which would include any third parties we engaged to assist us in any way in connection with our search for a target business) and prospective target businesses execute agreements with us waiving any right, title, interest or claim of any kind they may have in or to any monies held in the Trust Account, there is no guarantee that they will execute such agreements. Nor is there any guarantee that, even if such entities execute such agreements with us, they will not seek recourse against the Trust Account or that a court would conclude that such agreements are legally enforceable.

Our stockholders as of immediately prior to our IPO, including our Sponsor (our “Initial Stockholders”) have agreed to waive their rights to participate in any liquidation of our Trust Account or other assets with respect to the shares of Class B common stock held or controlled by our Initial Stockholders prior to the IPO (“Founder Shares”) and the Private Placement Shares purchased simultaneously with the consummation of the IPO, and to vote their Founder Shares and Private Placement Shares in favor of any dissolution and plan of distribution which we submit to a vote of stockholders. There will be no distribution from the Trust Account with respect to our warrants, which will expire worthless in the event of our winding up.

If the Charter Amendment Proposal and the Trust Amendment Proposal are approved, the removal of the Withdrawal Amount from the Trust Account, if any, will reduce the amount remaining in the Trust Account and increase the percentage interest of Company shares of Common Stock held by the Company’s officers, directors and their affiliates.

Abstentions and broker non-votes, while considered present for the purposes of establishing a quorum, are not treated as votes cast and will have no effect on the proposals. As a result, if you abstain from voting on any of the proposals, your shares will be counted as present for purposes of establishing a quorum (if so present in accordance with the terms of our Charter), but the abstention will have no effect on the outcome of such proposal.

If you do not want to approve the Charter Amendment Proposal, the Trust Amendment Proposal or the Adjournment Proposal, you must vote against each proposal. The approval of the Charter Amendment Proposal and the Trust Amendment Proposal are essential to the implementation of our board’s plan to extend the date by which we must consummate our Initial Business Combination. Therefore, our board will abandon and not implement the Charter Amendment Proposal unless our stockholders approve both the Charter Amendment Proposal and the Trust Amendment Proposal. This means that if one proposal is approved by the stockholders and the other proposal is not, neither proposal will take effect.

Abstentions and broker non-votes, while considered present for the purposes of establishing a quorum, are not treated as votes cast and will have no effect on the Proposals. As a result, if you abstain from voting on any of the Proposals, your shares will be counted as present for purposes of establishing a quorum (if so present in accordance with the terms of the Charter), but the abstention will have no effect on the outcome of such proposal.

If a stockholder who holds share in “street name” does not give the broker voting instructions, the broker is not permitted under applicable self-regulatory organization rules to vote the shares on “non-routine” proposals, such as the Charter Amendment Proposal and the Trust Amendment Proposal. These “broker non-votes” will also count as present for purposes of determining whether a quorum is present and will have no effect on the outcome of the vote on any of the Proposals.

Advantage Proxy, Inc.

P.O. Box 13581

Des Moines, WA 98198

Toll Free: 877-870-8565

Collect: 206-870-8565

Email: ksmith@advantageproxy.com

Unless revoked, a proxy will be voted at the Special Meeting in accordance with the stockholder’s indicated instructions. In the absence of instructions, proxies which have been signed and returned will be voted FOR each of the Proposals.

Stockholder of Record: Shares Registered in Your Name. If on the Record Date your shares were registered directly in your name with the Company’s transfer agent, Continental Stock Transfer & Trust Company, then you are a stockholder of record. As a stockholder of record, you may vote in person (including virtually) at the Special Meeting or vote by proxy. Whether or not you plan to attend the Special Meeting virtually, we urge you to fill out and return the enclosed proxy card to ensure your vote is counted.

Beneficial Owner: Shares Registered in the Name of a Broker or Bank. If on the Record Date your shares were held, not in your name, but rather in an account at a brokerage firm, bank, dealer, or other similar organization, then you are the beneficial owner of shares held in “street name” and these proxy materials are being forwarded to you by that organization. As a beneficial owner, you have the right to direct your broker or other agent on how to vote the shares in your account. You are also invited to attend the Special Meeting. However, since you are not the stockholder of record, you may not vote your shares in person at the Special Meeting unless you request and obtain a valid proxy from your broker or other agent.

To demand redemption, if you hold physical certificates for Public Shares, you must physically tender your share certificates to Continental Stock Transfer & Trust Company, the Company’s transfer agent, at Continental Stock Transfer & Trust Company, One State Street Plaza, 30th Floor, New York, NY 10004, Attn: Mark Zimkind; E-mail: mzimkind@continentalstock.com, no later than two business days prior to the Special Meeting. If you hold your Public Shares in “street name” through a bank, broker or other nominee, you must deliver your shares to Continental Stock Transfer & Trust Company electronically using The Depository Trust Company’s DWAC (Deposit/Withdrawal At Custodian) System two business days prior to the Special Meeting to demand redemption. You will only be entitled to receive cash in connection with a redemption of these shares if you continue to hold them until the effective date of the Extension Amendment.

Advantage Proxy, Inc.

P.O. Box 13581

Des Moines, WA 98198

Toll Free: 877-870-8565

Collect: 206-870-8565

Email: ksmith@advantageproxy.com

You may also obtain additional information about Aetherium from documents filed with the SEC by following the instructions in the section titled “Where You Can Find More Information.”

FORWARD-LOOKING STATEMENTS

We believe it is important to communicate our expectations to our stockholders. However, there may be events in the future that we are not able to predict accurately or over which we have no control. The cautionary language discussed in this proxy statement provide examples of risks, uncertainties and events that may cause actual results to differ materially from the expectations described by us in such forward-looking statements, including, among other things, claims by third parties against the Trust Account, unanticipated delays in the distribution of the funds from the Trust Account and the Company’s ability to finance and consummate a business combination following the distribution of funds from the Trust Account. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this proxy statement and to consider the risks, uncertainties and events discussed in this proxy statement, in addition to the risk factors set forth in our other filings with the SEC, including the final prospectus related to the IPO dated December 29, 2021 and filed with the SEC on January 3, 2022 pursuant to Rule 421(b)(4) (File No. 333-258072), and the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on February 28,, 2022, and any that may be set forth in the Initial Business Combination Registration Statement on Form S-4 or Initial Business Combination Proxy Statement, as applicable. The documents we file with the SEC, including those referred to above, also discuss some of the risks that could cause actual results to differ from those contained or implied in the forward-looking statements. See “Where You Can Find More Information” for additional information about our filings.

All forward-looking statements included herein attributable to the Company or any person acting on the Company’s behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. Except to the extent required by applicable laws and regulations, the Company undertakes no obligation to update these forward-looking statements to reflect events or circumstances after the date of this proxy statement or to reflect the occurrence of unanticipated events.

BACKGROUND

The Company

Aetherium was incorporated on April 15, 2021 and was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses, which we refer to as our “Initial Business Combination”. As disclosed in the Company’s prospectus dated December 29, 2021 in connection with its initial public offering (the “IPO”), pursuant to the Trust Agreement and the Company’s Charter, Aetherium has until April 3, 2023 to complete the Initial Business Combination. If the Initial Business Combination is not completed prior to April 3, 2023, Aetherium can extend the time to complete the Initial Business Combination only by the amendment of its Charter which requires the approval of at least 65% of the holders of the Company’s outstanding Common Stock, which include the holders of both the Class A common stock and the Class B common stock.

If Aetherium is unable to complete its Initial Business Combination within such period Aetherium must: (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account including interest earned on the funds held in the Trust Account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of our remaining stockholders and our board of directors, dissolve and liquidate, subject in the case of clauses (ii) and (iii) above to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law.

Following the closing of the IPO on April 3, 2022 and the underwriters’ full exercise of over-allotment option on the same date, approximately $116.7 million from the net proceeds of the sale of the Public Units in the IPO (each Unit consists of one share of Class A common stock and one redeemable warrant entitling the holder thereof to purchase one share of Class A common stock at a price of $11.50 per share) and the sale of the Private Units was placed in a trust account maintained by Continental Stock Transfer & Trust Company, acting as trustee (the “Trust Account”). The Private Units are the same as the Public Units. The funds held in the Trust Account are and will be invested only in United States “government securities” within the meaning of Section 2(a)(16) of the Investment Company Act having a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 promulgated under the Investment Company Act which invest only in direct U.S. government treasury obligations, so that Aetherium is not deemed to be an investment company under the Investment Company Act. Except with respect to interest earned on the funds held in the Trust Account that may be released to Aetherium to pay its income or other tax obligations, the proceeds will not be released from the Trust Account until the earlier of the completion of an Initial Business Combination or the redemption of 100% of the outstanding shares of common stock if Aetherium has not completed an Initial Business Combination in the required time period. The proceeds held in the Trust Account may be used as consideration to pay the sellers of a target business with which Aetherium completes an Initial Business Combination. Any amounts not paid as consideration to the sellers of the target business may be used to finance operations of the target business.

The Company is still in the process of identifying a potential business combination target company for an Initial Business Combination.

Our Charter provides for the return of the IPO proceeds held in the Trust Account to the holders of Public Shares if it has not consummated a business combination(s) on or before April 3, 2023.

The mailing address of our principal executive office is: 79B Pemberwick Rd., Greenwich, CT 06831.

Failure to Timely Complete an Initial Business Combination

As disclosed in the Company’s prospectus dated December 29, 2021 in connection with its IPO, pursuant to the Trust Agreement, and the Company’s Charter, if Aetherium does not complete the Initial Business Combination within 15 months from the closing of the IPO, or April 3, 2023, it would cease all operations except for the purpose of winding up the Company.

Aetherium and its board of directors have determined that there will not be sufficient time before April 3, 2023 to identify a target, file an Initial Business Combination Registration Statement or Initial Business Combination Proxy Statement related to the transaction, or to hold a Special Meeting to obtain stockholder approval of, and to consummate, the Initial Business Combination. Accordingly, Aetherium’s board has determined that, given Aetherium’s expenditure of time, effort and money on identifying a suitable company as a target business and completing its Initial Business Combination, it is in the best interests of its stockholders to approve the Charter Amendment Proposal and the Trust Amendment Proposal in order to amend the Charter and to amend the Trust Agreement. Assuming that the Charter Amendment Proposal and the Trust Amendment Proposal are so approved, and both the Charter and the Trust Agreement are amended, Aetherium will have to consummate an Initial Business Combination before the Extended Termination Date.

You are not being asked to vote on any business combination at this time. If the Charter Amendment Proposal and the Trust Amendment Proposal are implemented and you do not elect to redeem your Public Shares now, you will retain the right to vote on an Initial Business combination when it is submitted to stockholders and the right to redeem your Public Shares into a pro rata portion of the Trust Account in the event a business combination is approved and completed or the Company has not consummated a business combination by the Extended Termination Date.

If Aetherium’s board of directors determines that Aetherium will not be able to consummate an Initial Business Combination by the Extended Termination Date, and does not wish to seek an additional Extension, Aetherium would then look to wind up the Company’s affairs and redeem 100% of the outstanding Public Shares.

In connection with the Charter Amendment Proposal and the Trust Amendment Proposal, public stockholders may elect (the “Election”) to redeem their shares for a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest not previously released to Aetherium to pay franchise and income taxes, divided by the number of then outstanding Public Shares, regardless of whether such public stockholders vote “FOR” or “AGAINST” the Charter Amendment Proposal, the Trust Amendment Proposal and the Adjournment Proposal, and an Election can also be made by public stockholders who do not vote, or do not instruct their broker or bank how to vote, at the Special Meeting. Public stockholders may make an Election regardless of whether such public stockholders were holders as of the record date. If the Charter Amendment Proposal, the Trust Amendment Proposal and the Adjournment Proposal are approved by the requisite vote of stockholders, the remaining holders of Public Shares will retain their right to redeem their Public Shares when an Initial Business combination is submitted to the stockholders, subject to any limitations set forth in our Charter, as amended by the Charter Amendment Proposal. However, Aetherium will not proceed with the Charter Amendment Proposal or the Trust Amendment Proposal if the redemption of Public Shares in connection therewith would cause Aetherium to have net tangible assets of less than $5,000,001. Each redemption of shares by our public stockholders will decrease the amount in our Trust Account, which held approximately $[117.4] million of marketable securities as of [   ], 2023. In addition, public stockholders who do not make the Election would be entitled to have their shares redeemed for cash if Aetherium has not completed an Initial Business Combination by the Extended Termination Date. Our sponsor, our officers and directors and our other initial stockholders, own an aggregate of 3,403,500 shares of our common stock, which includes 2,875,000 shares of Class B common stock that we refer to as the “Founder Shares”, issued prior to our initial public offering (“IPO”) and 528,500 shares of our Class A common stock, which we refer to as the “Private Placement Shares”, that were included in the units purchased in a private placement which occurred simultaneously with the completion of the IPO.

To exercise your redemption rights, you must tender your shares to the Company’s transfer agent at least two business days prior to the Special Meeting (or [   ], 2023). You may tender your shares by either delivering your share certificate to the transfer agent or by delivering your shares electronically using the Depository Trust Company’s DWAC (Deposit/Withdrawal At Custodian) system. If you hold your shares in street name, you will need to instruct your bank, broker or other nominee to withdraw the shares from your account in order to exercise your redemption rights.

As of [   ], 2023, there was approximately $[117.4] million in the Trust Account. If the Charter Amendment Proposal and the Trust Amendment Proposal are approved and the Extension Termination Date is extended to April 3, 2024, the redemption price per share at the meeting for the Initial Business Combination or the Company’s subsequent liquidation will be approximately $10.95 per share (assuming no redemptions and without taking into account any interest), in comparison to the current redemption price of approximately $10.21 per share. The closing price of the Company’s common stock on [   ], 2023 was $[   ]. The Company cannot assure stockholders that they will be able to sell their shares of the Company’s common stock in the open market, even if the market price per share is higher than the redemption price stated above, as there may not be sufficient liquidity in its securities when such stockholders wish to sell their shares.

If the Charter Amendment Proposal, the Trust Amendment Proposal and the Adjournment Proposal are not approved and we do not consummate an Initial Business Combination by April 3, 2023, as contemplated by our IPO prospectus and in accordance with our Charter, we (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account including interest earned on the funds held in the Trust Account and not previously released to us to pay our taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of our remaining stockholders and our board of directors, dissolve and liquidate, subject in the case of clauses (ii) and (iii) above to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. In the event of a liquidation, our sponsor, our officers and directors and our other initial stockholders, will not receive any monies held in the Trust Account as a result of their ownership of the Founder Shares or the Private Placement Shares.

Subject to the foregoing, the affirmative vote of at least 65% of the Company’s outstanding common stock, including the Founder Shares and the Private Placement Shares, will be required to approve the Charter Amendment Proposal and the Trust Amendment Proposal. The approval of the Charter Amendment Proposal and the Trust Amendment Proposal are essential to the implementation of our board’s plan to extend the date by which we must consummate our Initial Business Combination. Therefore, our board will abandon and not implement the Charter Amendment Proposal and the Trust Amendment Proposal unless our stockholders approve both the Charter Amendment Proposal and the Trust Amendment Proposal. This means that if one proposal is approved by the stockholders and the other proposal is not, neither proposal will take effect. Notwithstanding stockholder approval of the Charter Amendment Proposal and the Trust Amendment Proposal, our board will retain the right to abandon and not implement the Charter Amendment Proposal and the Trust Amendment Proposal at any time without any further action by our stockholders.

Our board has fixed the close of business on [   ], 2023 as the date for determining the Company stockholders entitled to receive notice of and vote at the Special Meeting and any adjournment thereof. Only holders of record of the Company’s common stock on that date are entitled to have their votes counted at the Special Meeting or any adjournment thereof.

After careful consideration of all relevant factors, the board of directors has determined that each of the proposals are advisable and recommends that you vote or give instruction to vote “FOR” such proposals.

Voting Rights and Revocation of Proxies

The record date with respect to this solicitation is the close of business on [   ], 2023 (the “Record Date”) and only stockholders of record at that time will be entitled to vote at the Special Meeting and any adjournment or adjournments thereof.

The shares of the Company’s common stock (“Common Stock”) represented by all validly executed proxies received in time to be taken to the Special Meeting and not previously revoked will be voted at the meeting. This proxy may be revoked by the stockholder at any time prior to its being voted by filing with the Secretary of the Company either a notice of revocation or a duly executed proxy bearing a later date. We intend to release this Proxy Statement and the enclosed proxy card to our stockholders on or about [   ]2023.

Dissenters’ Right of Appraisal

Holders of shares of our Common Stock do not have appraisal rights under Delaware law or under the governing documents of the Company in connection with this solicitation.

Outstanding Shares and Quorum

The number of outstanding shares of Common Stock (which includes the Company’s Class A common stock and Class B common stock) entitled to vote at the Special Meeting is 14,903,500. Each share of Common Stock is entitled to one vote. The presence in person or by proxy at the Special Meeting of the holders of 7,451,751 shares, or a majority of the number of outstanding shares of Common Stock, will constitute a quorum. There is no cumulative voting. Shares that abstain or for which the authority to vote is withheld on certain matters (so-called “broker non-votes”) will be treated as present for quorum purposes on all matters. The Company’s warrants do not carry voting rights.

Broker Non-Votes

Holders of shares of our Class A common stock that are held in street name must instruct their bank or brokerage firm that holds their shares how to vote their shares. If a stockholder does not give instructions to his or her bank or brokerage firm, it will nevertheless be entitled to vote the shares with respect to “routine” items, but it will not be permitted to vote the shares with respect to “non-routine” items. In the case of a non-routine item, such shares will be considered “broker non-votes” on that proposal.

Proposal 1 (Charter Amendment Proposal) is a matter that we believe will be considered “non-routine.”

Proposal 2 (Trust Amendment Proposal) is a matter that we believe will be considered “non-routine.”

Proposal 3 (Adjournment Proposal) is a matter that we believe will be considered “routine.”

Banks or brokerages cannot use discretionary authority to vote shares on Proposals 1 or 2 if they have not received instructions from their clients. Please submit your vote instruction form so your vote is counted.

Abstentions will count as a vote against each of the proposals.

Interests of the Company’s Directors and Officers

When you consider the recommendation of our board, you should keep in mind that the Company’s initial stockholders, sponsor, officers, directors and advisors have interests that may be different from, or in addition to, your interests as a stockholder. These interests include, among other things:

Additionally, if the Charter Amendment Proposal and the Trust Amendment Proposal are approved, the Extension is implemented and the Company consummates an Initial Business Combination, the officers and directors may have additional interests that would be described in the proxy statement for such transaction.

Voting Procedures

Each share of our Class A common stock that you own in your name entitles you to one vote on each of the proposals for the Special Meeting. Your proxy card shows the number of shares of our common stock that you own.

Solicitation of Proxies

Your proxy is being solicited by our board on the proposals being presented to stockholders at the Special Meeting. The Company has agreed to pay Advantage Proxy, Inc. (“Advantage”) its customary fee and out-of-pocket expenses. The Company will reimburse Advantage for reasonable out-of-pocket expenses and will indemnify Advantage and its affiliates against certain claims, liabilities, losses, damages and expenses. In addition to these mailed proxy materials, our directors and officers may also solicit proxies in person, by telephone or by other means of communication. These parties will not be paid any additional compensation for soliciting proxies. We may also reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to beneficial owners. You may contact Advantage at:

Advantage Proxy, Inc.

P.O. Box 13581

Des Moines, WA 98198

Toll Free: 877-870-8565

Collect: 206-870-8565

Email: ksmith@advantageproxy.com

The cost of preparing, assembling, printing and mailing this Proxy Statement and the accompanying form of proxy, and the cost of soliciting proxies relating to the Special Meeting, will be borne by the Company.

Some banks and brokers have customers who beneficially own common stock listed of record in the names of nominees. We intend to request banks and brokers to solicit such customers and will reimburse them for their reasonable out-of-pocket expenses for such solicitations. If any additional solicitation of the holders of our outstanding common stock is deemed necessary, we (through our directors and officers) anticipate making such solicitation directly.

Delivery of Proxy Materials to Stockholders

Only one copy of this Proxy Statement will be delivered to an address where two or more stockholders reside with the same last name or whom otherwise reasonably appear to be members of the same family based on the stockholders’ prior express or implied consent.

We will deliver promptly upon written or oral request a separate copy of this Proxy Statement. If you share an address with at least one other stockholder, currently receive one copy of our Proxy Statement at your residence, and would like to receive a separate copy of our Proxy Statement for future stockholder meetings of the Company, please specify such request in writing and send such written request to Aetherium Acquisition Corp., 79B Pemberwick Rd., Greenwich, CT 06831; Attention: Secretary, or call the Company promptly at (650) 450-6836.

If you share an address with at least one other stockholder and currently receive multiple copies of our Proxy Statement, and you would like to receive a single copy of our Proxy Statement, please specify such request in writing and send such written request to Aetherium Acquisition Corp., 79B Pemberwick Rd., Greenwich, CT 06831; Attention: Secretary.

Redemption Rights

Pursuant to our currently existing charter, any holders of our Public Shares may demand that such shares be redeemed for a pro rata share of the aggregate amount on deposit in the Trust Account, less taxes payable, calculated as of two business days prior to the Special Meeting. Public stockholders may seek to have their shares redeemed regardless of whether they vote for or against the proposals and whether or not they are holders of our common stock as of the Record Date. If you properly exercise your redemption rights, your shares will cease to be outstanding and will represent only the right to receive a pro rata share of the aggregate amount on deposit in the Trust Account which holds the proceeds of our IPO (calculated as of two business days prior to the Special Meeting). For illustrative purposes, based on funds in the Trust Account of approximately $[117.4] million on [   ], 2023, the estimated per share conversion price would have been approximately $[10.21].

In order to exercise your redemption rights, you must:

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, NY 10004

Attn: Mark Zimkind

E-mail: mzimkind@continentalstock.com

and

Any demand for redemption, once made, may be withdrawn at any time until the deadline for exercising redemption requests (and submitting shares to the transfer agent) and thereafter, with our consent. If you delivered your shares for redemption to our transfer agent and decide within the required timeframe not to exercise your redemption rights, you may request that our transfer agent return the shares (physically or electronically). You may make such request by contacting our transfer agent at the phone number or address listed above.

Prior to exercising redemption rights, stockholders should verify the market price of our common stock, as they may receive higher proceeds from the sale of their common stock in the public market than from exercising their redemption rights if the market price per share is higher than the redemption price. We cannot assure you that you will be able to sell your shares of our common stock in the open market, even if the market price per share is higher than the conversion price stated above, as there may not be sufficient liquidity in our common stock when you wish to sell your shares.

If you exercise your redemption rights, your shares of our common stock will cease to be outstanding immediately prior to the Special Meeting (assuming the Charter Amendment Proposal and the Trust Amendment Proposal are approved) and will only represent the right to receive a pro rata share of the aggregate amount on deposit in the Trust Account. You will no longer own those shares and will have no right to participate in, or have any interest in, the future growth of the Company, if any. You will be entitled to receive cash for these shares only if you properly and timely request redemption.

If the Charter Amendment Proposal and the Trust Amendment Proposal are not approved and we do not consummate an Initial Business Combination by April 3, 2023, we will be required to dissolve and liquidate our Trust Account by returning the then remaining funds in such account to the public stockholders and warrants will expire worthless.

Holders of outstanding units must separate the underlying shares of Class A common stock and public warrants prior to exercising conversion rights with respect to the shares of Class A common stock.

If you hold units registered in your own name, you must deliver the certificate for such units to Continental Stock Transfer & Trust Company with written instructions to separate such units into Public Shares and public warrants. This must be completed far enough in advance to permit the mailing of the public share certificates back to you so that you may then exercise your conversion rights with respect to the Public Shares upon the separation of the Public Shares from the units.

If a broker, dealer, commercial bank, trust company or other nominee holds your units, you must instruct such nominee to separate your units. Your nominee must send written instructions by facsimile to Continental Stock Transfer & Trust Company. Such written instructions must include the number of units to be split and the nominee holding such units. Your nominee must also initiate electronically, using DTC’s deposit withdrawal at custodian (DWAC) system, a withdrawal of the relevant units and a deposit of an equal number of Public Shares and public warrants. This must be completed far enough in advance to permit your nominee to exercise your conversion rights with respect to the Public Shares upon the separation of the Public Shares from the units. While this is typically done electronically the same business day, you should allow at least one full business day to accomplish the separation. If you fail to cause your Public Shares to be separated in a timely manner, you will likely not be able to exercise your conversion rights.