UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. 4)

Filed by the Registrant  ☒

Filed by a Party other than the Registrant  ☐

Check the appropriate box:

EAST RESOURCES ACQUISITION COMPANY

(Name of Registrant as Specified in its Charter)

N/A

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

PRELIMINARY PROXY STATEMENT—SUBJECT TO COMPLETION DATED APRIL 21, 2023

EAST RESOURCES ACQUISITION COMPANY

7777 NW Beacon Square Boulevard

Boca Raton, Florida 33487

Dear Stockholder:

On August 30, 2022, East Resources Acquisition Company, a Delaware corporation (“ERES”), LMA Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES (“LMA Merger Sub”), Abacus Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES (“Abacus Merger Sub”), Longevity Market Assets, LLC, a Florida limited liability company (“LMA”), and Abacus Settlements, LLC, a Florida limited liability company (“Abacus” and, together with LMA, the “Companies”), entered into an Agreement and Plan of Merger, as amended on October 14, 2022 and April 20, 2023 (as it may be further amended, supplemented or otherwise modified from time to time in accordance with its terms, the “Merger Agreement”), pursuant to which, subject to the satisfaction or waiver of certain conditions precedent in the Merger Agreement, (i) LMA Merger Sub will merge with and into LMA, with LMA surviving such merger (the “LMA Merger”) and (ii) Abacus Merger Sub will merge with and into Abacus, with Abacus surviving such merger (the “Abacus Merger” and, together with the LMA Merger, the “Mergers” and, along with the transactions contemplated in the Merger Agreement, the “Business Combination”) and the Companies will become direct wholly owned subsidiaries of ERES.

As part of the Business Combination, the holders of the issued and outstanding limited liability company interests of each of the Companies will receive aggregate consideration of approximately $531.8 million, payable in a number of newly issued shares of ERES Class A common stock, par value $0.0001 per share (“ERES Class A Common Stock”), with a value ascribed to each share of ERES Class A Common Stock of $10.00 (the “Stock Consideration”) and, to the extent the Aggregate Transaction Proceeds (as defined herein) exceed $200.0 million, at the election of the Company Members (as defined herein), up to $20.0 million of the aggregate consideration will be payable in cash to the Company Members (the “Cash Consideration” and, together with the Stock Consideration, the “Aggregate Merger Consideration”).

At the effective time of the LMA Merger (the “LMA Effective Time”), each limited liability company interest in LMA that is issued and outstanding as of immediately prior to the closing of the LMA Merger (the “LMA Closing”) will be cancelled and converted into the right to receive a portion of the Aggregate Merger Consideration. At the effective time of the Abacus Merger (the “Abacus Effective Time”, and together with the LMA Effective Time, the “Effective Time”), each limited liability company interest in Abacus that is issued and outstanding as of immediately prior to the closing of the Abacus Merger (the “Abacus Closing” and, together with the LMA Closing, the “Closing”) will be cancelled and converted into the right to receive a portion of the Aggregate Merger Consideration.

ERES expects to issue 53.2 million shares of ERES Class A Common Stock to the Company Members in connection with the Closing (assuming that the Cash Consideration equals zero). The Company Members as of immediately prior to the Closing will hold, in the aggregate, approximately 82% of ERES Class A Common Stock immediately following the Closing (assuming that no shares of ERES Class A Common Stock are validly redeemed and that the Cash Consideration equals zero). ERES units, ERES Class A Common Stock and ERES public warrants are currently publicly traded on The Nasdaq Capital Market (“Nasdaq”). In connection with the Closing, ERES intends to change its name to Abacus Life, Inc. (the “Post-Combination Company”). We anticipate that the Post-Combination Company’s common stock and public warrants will be listed on Nasdaq under the symbols “ABL” and “ABLLW,” respectively. The Post-Combination Company will not have units traded following the Closing, and ERES’s units will be delisted and deregistered following the Closing.

See the section entitled “The Business Combination” of the attached proxy statement for further information on the consideration being paid to the Company Members in the Mergers.

ERES will hold a special meeting of stockholders in lieu of the 2022 annual meeting of its stockholders (the “Special Meeting”) to consider matters relating to the proposed Business Combination. ERES and the Companies cannot complete the Business Combination unless ERES’s stockholders consent to the approval of the Merger Agreement and the transactions contemplated thereby. ERES is sending you this proxy statement to ask you to vote in favor of these and the other matters described in this proxy statement.

The Special Meeting will be held at [●], on [●], 2023, in virtual format at https://www.cstproxy.com/eastresources/2023.

YOUR VOTE IS VERY IMPORTANT, REGARDLESS OF THE NUMBER OF UNITS OR SHARES OF COMMON STOCK YOU OWN.

To ensure your representation at the Special Meeting, please complete and return the enclosed proxy card or submit your proxy by following the instructions contained in this proxy statement and on your proxy card. Please submit your proxy promptly whether or not you expect to attend the meeting. Submitting a proxy now will NOT prevent you from being able to vote in person (which would include presence at a virtual meeting) at the meeting. If you hold your shares in “street name,” you should instruct your broker, bank or other nominee how to vote in accordance with the voting instruction form you receive from your broker, bank or other nominee.

The ERES board of directors has unanimously approved the Merger Agreement and the transactions contemplated thereby and recommends that ERES stockholders vote “FOR” the approval of the Merger Agreement, “FOR” the issuance of ERES Class A Common Stock to be issued as the Stock Consideration and “FOR” the other matters to be considered at the Special Meeting.

This proxy statement provides you with detailed information about the proposed Business Combination. It also contains or references information about ERES and the Companies and certain related matters. You are encouraged to read this proxy statement carefully. In particular, you should read the “Risk Factors” section beginning on page 34 for a discussion of the risks you should consider in evaluating the proposed Business Combination and how the Business Combination will affect you.

If you have any questions regarding the accompanying proxy statement, you may contact Morrow Sodali LLC, ERES’s proxy solicitor, toll free at (800) 662-5200.

Sincerely,

Terrence M. Pegula

Chief Executive Officer, President and Chairman

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of the Mergers, the issuance of shares of ERES Class A Common Stock in connection with the Mergers or the other transactions described in this proxy statement, or passed upon the adequacy or accuracy of the disclosure in this proxy statement. Any representation to the contrary is a criminal offense.

This proxy statement is dated [●], 2023, and is first being mailed to stockholders of ERES on or about [●], 2023.

EAST RESOURCES ACQUISITION COMPANY

7777 NW Beacon Square Boulevard

Boca Raton, Florida 33487

NOTICE OF

SPECIAL MEETING IN LIEU OF THE 2022 ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON [●], 2023

TO THE STOCKHOLDERS OF EAST RESOURCES ACQUISITION COMPANY:

NOTICE IS HEREBY GIVEN that a special meeting in lieu of the 2022 annual meeting of stockholders of East Resources Acquisition Company, a Delaware corporation (“ERES”), will be held at [●], on [●], 2023, in virtual format at https://www.cstproxy.com/eastresources/2023 (the “Special Meeting”). You are cordially invited to attend the Special Meeting, which will be held for the following purposes:

(1) The Business Combination Proposal—To consider and vote upon a proposal (the “Business Combination Proposal”) to approve the Agreement and Plan of Merger, dated as of August 30, 2022 and amended as of October 14, 2022 and April 20, 2023 (as it may be further amended, supplemented or otherwise modified from time to time in accordance with its terms, the “Merger Agreement”), by and among ERES, LMA Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES (“LMA Merger Sub”), Abacus Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES (“Abacus Merger Sub” and, together with LMA Merger Sub, “Merger Subs”), Longevity Market Assets, LLC, a Florida limited liability company (“LMA”), and Abacus Settlements, LLC, a Florida limited liability company (“Abacus” and, together with LMA, the “Companies”), and the transactions contemplated thereby, pursuant to which, subject to the satisfaction or waiver of certain conditions precedent in the Merger Agreement, (i) LMA Merger Sub will merge with and into LMA, with LMA surviving such merger (the “LMA Merger”) and (ii) Abacus Merger Sub will merge with and into Abacus, with Abacus surviving such merger (the “Abacus Merger” and, together with the LMA Merger, the “Mergers” and, along with the transactions contemplated in the Merger Agreement, the “Business Combination”) and the Companies will become direct wholly owned subsidiaries of ERES. A copy of the Merger Agreement is attached to this proxy statement as Annex A-1, a copy of the First Amendment to the Agreement and Plan of Merger, dated as of October 14, 2022, (the “Amendment”) is attached to this proxy statement as Annex A-2 and a copy of the Second Amendment to the Agreement and Plan of Merger, dated as of April 20, 2023 (the “Second Amendment”) is attached to this proxy statement as Annex A-3;

(2) The Charter Approval Proposal—To consider and vote upon a proposal (the “Charter Approval Proposal”) to adopt the Second Amended and Restated Certificate of Incorporation of ERES (the “Proposed Charter”) in the form attached hereto as Annex B;

(3) The Governance Proposal—To consider and act upon, on a non-binding advisory basis, a separate proposal (the “Governance Proposal”) with respect to certain governance provisions in the Proposed Charter in accordance with the U.S. Securities and Exchange Commission requirements;

(4) The Director Election Proposal—To consider and for holders of ERES Class B Common Stock (as defined herein) to vote upon a proposal (the “Director Election Proposal”) to elect seven directors to serve on the Board of Directors of the Post-Combination Company (the “Board”) until the 2023 annual meeting of stockholders, in the case of Class I directors, the 2024 annual meeting of stockholders, in the case of Class II directors, and the 2025 annual meeting of stockholders, in the case of Class III directors, and, in each case, until their respective successors are duly elected and qualified;

(5) The Nasdaq Proposal—To consider and vote upon a proposal (the “Nasdaq Proposal”) to approve, for purposes of complying with applicable listing rules of Nasdaq, the issuance of shares of ERES Class A Common Stock to the Company Members pursuant to the Merger Agreement;

(6) The Incentive Plan Proposal—To consider and vote upon a proposal (the “Incentive Plan Proposal”) to approve and adopt the Incentive Plan (as defined herein) in the form attached hereto as Annex G; and

(7) The Adjournment Proposal—To consider and vote upon a proposal (the “Adjournment Proposal” and, each of the Business Combination Proposal, the Charter Approval Proposal, the Governance Proposal, the Nasdaq Proposal, the Director Election Proposal, the Incentive Plan Proposal and the Adjournment Proposal, each a “Proposal” and collectively, the “Proposals”) to approve the adjournment of the Special Meeting to a later date or dates, if necessary, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Business Combination Proposal, the Charter Approval Proposal, the Director Election Proposal, the Nasdaq Proposal or the Incentive Plan Proposal.

These items of business are described in the attached proxy statement, which we encourage you to read in its entirety before voting. Only holders of record of ERES Class A Common Stock and ERES Class B Common Stock (collectively, “ERES Common Stock”) at the close of business on [●], 2023 (the “ERES Record Date”) are entitled to notice of the Special Meeting and to vote and have their votes counted at the Special Meeting and any adjournments or postponements of the Special Meeting.

Pursuant to ERES’s Amended and Restated Certificate of Incorporation, ERES will provide holders of its Class A Common Stock (“Public Shares,” and such holders, “Public Stockholders”) with the opportunity to redeem their Public Shares for cash equal to their pro rata share of the aggregate amount on deposit in the Trust Account (as defined herein), which holds the proceeds of the ERES IPO and additional funds deposited by East Sponsor, LLC, a Delaware limited liability company (the “Sponsor”), in connection with the extension of the date by which ERES must complete an initial business combination, as of two business days prior to the consummation of the transactions contemplated by the Business Combination Proposal (including interest earned on the funds held in the Trust Account and not previously released to ERES to pay its taxes). For illustrative purposes, based on funds in the Trust Account of approximately $[●] million on [●], 2023, the ERES Record Date, the estimated per Public Share redemption price would have been approximately $[●], excluding additional interest earned, if any, on the funds held in the Trust Account and not previously released to ERES to pay taxes. Public Stockholders may elect to redeem their shares even if they vote for the Business Combination Proposal. Public Stockholders, together with any other person with whom such Public Stockholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Exchange Act (as defined herein)), will be restricted from seeking redemption rights with respect to more than 20% of the Public Shares without the consent of ERES. Accordingly, all Public Shares in excess of 20% held by a Public Stockholder, together with any affiliate of such Public Stockholder or any other person with whom such Public Stockholder is acting in concert or as a “group,” will not be redeemed for cash without the consent of ERES. The Sponsor and ERES’s directors and officers have agreed to waive their redemption rights in connection with the consummation of the Business Combination with respect to any shares of ERES Class A Common Stock they may hold. These waivers were made at the time of the ERES IPO for no additional consideration. As of the date of this proxy, and due to the redemption of 24,781,028 Public Shares in connection with the stockholder vote in July 2022 and the redemption of 6,862,925 Public Shares in connection with the stockholder vote in January 2023 to approve the extension of the date by which ERES must complete an initial business combination, the Sponsor (including ERES’s directors, officers and Initial Stockholders (as defined herein) and their permitted transferees) owns approximately 75% of the issued and outstanding ERES Common Stock, consisting of the Founder Shares (as defined herein). Founder Shares will be excluded from the pro rata calculation used to determine the per Public Share redemption price. The Sponsor and ERES directors and officers have agreed to vote any shares of ERES Common Stock owned by them in favor of each of the proposals presented at the Special Meeting.

After careful consideration, ERES’s board of directors (the “ERES Board”) has determined that the Business Combination Proposal, the Charter Approval Proposal, the Governance Proposal, the Nasdaq Proposal, the Director Election Proposal, the Incentive Plan Proposal and the Adjournment Proposal are fair to and in the best interests of ERES and its stockholders and unanimously recommends that you vote or give instruction to vote “FOR” the Business Combination Proposal, “FOR” the Charter Approval Proposal, “FOR” the Governance Proposal, “FOR” the Nasdaq Proposal, “FOR” the Director Election Proposal, “FOR” the Incentive Plan Proposal and, if presented, “FOR” the Adjournment Proposal.

The approval of each of the Business Combination Proposal, the Governance Proposal, the Nasdaq Proposal, the Incentive Plan Proposal and the Adjournment Proposal, if presented, requires the affirmative vote (in person or by proxy) of the holders of a majority of the shares of ERES Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class. The approval of the Charter Approval Proposal requires the affirmative vote (in person or by proxy) of (i) the holders of a majority of the ERES Class B Common Stock then outstanding and entitled to vote, voting separately as a single class, (ii) the holders of a majority of the shares of ERES Class A Common Stock then outstanding and entitled to vote, voting separately as a single class, and (iii) the holders of a majority of the shares of ERES Class A Common Stock and ERES Class B Common Stock then outstanding and entitled to vote, voting together as a single class. The approval of the Director Election Proposal requires the affirmative vote (in person or by proxy) of the holders of a plurality of the outstanding shares of ERES Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting.

Consummation of the Business Combination is conditioned on the approval of the Business Combination Proposal, the Charter Approval Proposal, the Nasdaq Proposal and the Incentive Plan Proposal at the Special Meeting, subject to the terms of the Merger Agreement. The Mergers are not conditioned on stockholders of ERES approving any of the Governance Proposal, the Director Election Proposal or the Adjournment Proposal. If the Business Combination Proposal is not approved, the other Proposals (except the Adjournment Proposal) will not be presented to the stockholders for a vote. The proxy statement accompanying this notice explains the Merger Agreement and the transactions contemplated thereby, as well as the Proposals to be considered at the Special Meeting. Please review the proxy statement carefully.

All ERES stockholders are cordially invited to attend the Special Meeting in virtual format. ERES stockholders may attend, vote and examine the list of ERES stockholders entitled to vote at the Special Meeting by visiting and entering the control number found on their proxy card, voting instruction form or notice included in their proxy materials. The Special Meeting will be held in virtual meeting format only. You will not be able to attend the Special Meeting physically. To ensure your representation at the Special Meeting, you are urged to complete, sign, date and return the enclosed proxy card as soon as possible. If your shares are held in an account at a brokerage firm or bank, you must instruct your broker or bank on how to vote your shares.

Your vote is important regardless of the number of shares you own. Whether you plan to attend the Special Meeting or not, please sign, date and return the enclosed proxy card as soon as possible in the envelope provided. If your shares are held in “street name” or are in a margin or similar account, you should contact your broker to ensure that votes related to the shares you beneficially own are properly counted.

If you have any questions or need assistance voting your shares, please call Morrow Sodali LLC, ERES’s proxy solicitor, toll free at (800) 662-5200.

Thank you for your participation. We look forward to your continued support.

[●], 2023

IF YOU RETURN YOUR SIGNED PROXY CARD WITHOUT AN INDICATION OF HOW YOU WISH TO VOTE, YOUR SHARES WILL BE VOTED IN FAVOR OF EACH OF THE PROPOSALS. TO EXERCISE YOUR REDEMPTION RIGHTS, YOU MUST ELECT TO HAVE ERES REDEEM YOUR SHARES FOR A PRO RATA PORTION OF THE FUNDS HELD IN THE TRUST ACCOUNT AND TENDER YOUR SHARES TO ERES’S TRANSFER AGENT AT LEAST TWO (2) BUSINESS DAYS PRIOR TO THE VOTE AT THE SPECIAL MEETING. 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 AND WITHDRAWAL AT CUSTODIAN) SYSTEM. IF THE BUSINESS COMBINATION IS NOT COMPLETED, THEN THESE SHARES WILL NOT BE REDEEMED FOR CASH. IF YOU HOLD THE SHARES IN STREET NAME, YOU WILL NEED TO INSTRUCT THE ACCOUNT EXECUTIVE AT YOUR BANKS OR BROKERS TO WITHDRAW THE SHARES FROM YOUR ACCOUNT IN ORDER TO EXERCISE YOUR REDEMPTION RIGHTS. SEE “ERES’S SPECIAL MEETING OF STOCKHOLDERS—REDEMPTION RIGHTS” FOR MORE SPECIFIC INSTRUCTIONS.

CONTENTS

i

ii

ANNEXES

iii

BASIS OF PRESENTATION AND GLOSSARY

As used in this proxy statement, unless otherwise noted or the context otherwise requires, references to:

“Abacus” are to Abacus Settlements, LLC, a Florida limited liability company;

“Abacus Interests” are to the issued and outstanding limited liability company interests in Abacus;

“Abacus Members” are to holders of Abacus Interests;

“Abacus Merger Sub” are to Abacus Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES;

“Aggregate Transaction Proceeds” are to an amount equal to: (a) the aggregate cash proceeds available for release to ERES from the Trust Account in connection with the Business Combination; plus (b) the PIPE Investment Amount (as defined in the Merger Agreement) (while ERES continues to opportunistically seek to raise a PIPE investment, at this time, it has no committed PIPE Investment Amount); minus (c) the aggregate amount of cash proceeds required to satisfy the redemption of any Public Shares by ERES stockholders; minus (d) the costs and expenses incurred by ERES and Merger Subs in connection with the Business Combination; minus (e) the costs and expenses incurred by the Companies in connection with the Business Combination; minus (f) the aggregate amount of cash proceeds required to repay in full the loans made by the Sponsor to ERES as of the Effective Time;

“Amended and Restated Bylaws” are to the proposed Amended and Restated Bylaws of ERES in the form attached hereto as Annex C;

“Business Combination” are to the Mergers and the other transactions contemplated by the Merger Agreement;

“Class A Common Stock” or “ERES Class A Common Stock” are to the shares of ERES’s Class A common stock, par value $0.0001 per share, prior to the Business Combination, and to shares of the Post-Combination Company’s common stock, par value $0.0001 per share, after the Business Combination;

“Class B Common Stock” or “ERES Class B Common Stock” are to the shares of ERES’s Class B common stock, par value $0.0001 per share;

“Code” are to the Internal Revenue Code of 1986, as amended;

“Common Stock” or “ERES Common Stock” are to the ERES Class A Common Stock and ERES Class B Common Stock, collectively;

“Companies” are to Abacus and LMA, collectively;

“Company Members” are to the holders of LMA Interests and Abacus Interests prior to the closing of the Business Combination;

“DGCL” are to the Delaware General Corporation Law, as may be amended from time to time;

“ERES” are to East Resources Acquisition Company, a Delaware corporation;

“ERES IPO” or “Initial Public Offering” are to the initial public offering by ERES, which closed on July 27, 2020;

“ERES public warrants” or “public warrants” are to the warrants issued as part of the ERES IPO, with each unit offered consisting of one share of Class A common stock and one-half of one public warrant. Each whole public warrant issued is eligible to purchase one share of Class A Common Stock at a price of $11.50,

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regardless of whether the holder has previously redeemed their ERES Class A Common Stock purchased in connection with the ERES IPO;

“ERES Record Date” are to [●], 2023;

“Exchange Act” are to the Securities Exchange Act of 1934, as amended;

“Existing Charter” are to the Amended and Restated Certificate of Incorporation of ERES, dated July 23, 2020, as amended by that certain Certificate of Amendment, dated July 25, 2022;

“Extension Note” are to the note dated July 25, 2022, entered into by and between ERES and the Sponsor in connection with the extension of the business combination deadline;

“Extension Warrants” are to the warrants that are issuable at the closing of the Business Combination if the Sponsor elects to exercise its option to convert up to $1,500,000 of the unpaid principal balance of the Extension Note into that number of warrants equal to the principal amount of the Extension Note so converted divided by $1.50;

“Founder Shares” are to the shares of ERES Class B Common Stock and ERES Class A Common Stock issued upon the automatic conversion thereof at the time of ERES’s initial business combination as provided herein. The 8,625,000 Founder Shares are held of record by the Initial Stockholders as of the ERES Record Date;

“GAAP” are to generally accepted accounting principles in the United States, as applied on a consistent basis;

“Initial Stockholders” are to holders of the Founder Shares prior to the Business Combination;

“Investment Company Act” are to the Investment Company Act of 1940, as amended;

“LMA” are to Longevity Market Assets, LLC, a Florida limited liability company;

“LMA Interests” are to the issued and outstanding limited liability company interests in LMA;

“LMA Members” are to the holders of LMA Interests;

“LMA Merger Sub” are to LMA Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of ERES;

“Merger Subs” are to Abacus Merger Sub and LMA Merger Sub;

“Nasdaq” are to The Nasdaq Capital Market;

“Post-Combination Company” are to ERES following the consummation of the Mergers and the other transactions contemplated by the Merger Agreement;

“Private Placement Warrants” are to the warrants issued by ERES to the Sponsor in a private placement simultaneously with the closing of the ERES IPO;

“Proposed Charter” are to the Second Amended and Restated Certificate of Incorporation of ERES proposed under the Charter Approval Proposal;

“Public Shares” are to shares of ERES Class A Common Stock sold as part of the units in the ERES IPO (whether they were purchased in the ERES IPO or thereafter in the open market);

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“Public Stockholders” are to the holders of the Public Shares;

“SEC” are to the U.S. Securities and Exchange Commission;

“Second Extension Note” are to the note dated January 23, 2023, entered into by and between ERES and the Sponsor in connection with the extension of the business combination deadline;

“Second Extension Warrants” are to the warrants that are issuable at the closing of the Business Combination if the Sponsor elects to exercise its option to convert up to $500,000 of the unpaid principal balance of the Second Extension Note into that number of warrants equal to the principal amount of the Second Extension Note so converted divided by $1.50;

“Securities Act” are to the Securities Act of 1933, as amended;

“Sponsor” are to East Sponsor, LLC, a Delaware limited liability company;

“Trust Account” are to the trust account established by ERES at Continental Stock Transfer & Trust Company for the benefit of ERES’s stockholders;

“Working Capital Loans” or “Working Capital Note” are to the loans made to ERES by the Sponsor, members of ERES’ founding team or any of their affiliates in order to finance transaction costs in connection with a business combination; and

“Units” or “ERES units” are to the units publicly offered as part of the ERES IPO and the units later available through the consummation of the full exercise of the underwriter over-allotment option. Each unit consists of one share of Class A common stock and one-half of one public warrant.

Unless specified otherwise, amounts in this proxy statement are presented in United States (“U.S.”) dollars.

Defined terms in the financial statements contained in this proxy statement have the meanings ascribed to them in the financial statements.

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TRADEMARKS, TRADE NAMES AND SERVICE MARKS

ERES, the Companies and their respective subsidiaries own or have rights to trademarks, trade names and service marks that they use in connection with the operation of their business. In addition, their names, logos and website names and addresses are their trademarks or service marks. Other trademarks, trade names and service marks appearing in this proxy statement are the property of their respective owners. Solely for convenience, in some cases, the trademarks, trade names and service marks referred to in this proxy statement are listed without the applicable ^®, M and SM symbols, but ERES, the Companies and their respective subsidiaries will assert, to the fullest extent under applicable law, their rights to these trademarks, trade names and service marks.

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QUESTIONS AND ANSWERS

The questions and answers below highlight only selected information from this proxy statement and only briefly address some commonly asked questions about the Business Combination and the Mergers, the Special Meeting in lieu of the 2022 annual meeting and the Proposals to be presented at the Special Meeting. The following questions and answers do not include all the information that is important to ERES stockholders. You are urged to carefully read this entire proxy statement, including the Annexes and the other documents referred to herein, to fully understand the Business Combination and the voting procedures for the Special Meeting.

QUESTIONS AND ANSWERS ABOUT THE BUSINESS COMBINATION

ERES will hold the Special Meeting to, among other things, obtain the approvals required for the Business Combination and the other transactions contemplated by the Merger Agreement, and you are receiving this proxy statement in connection with such meeting. See the section entitled “The Merger Agreement.” In addition, a copy of the Merger Agreement is attached to this proxy statement as Annex A-1, a copy of the Amendment is attached to this proxy statement as Annex A-2 and a copy of the Second Amendment is attached to this proxy statement as Annex A-3. We urge you to carefully read this proxy statement, including the Annexes and the other documents referred to herein, in their entirety.

At the Effective Time, the limited liability company interests in each of LMA and Abacus issued and outstanding immediately prior to the Closing will be cancelled and converted into the right to receive a portion of the aggregate merger consideration.

The total number of shares of ERES Class A Common Stock expected to be issued to the Company Members in connection with the Closing is approximately 53.2 million, and the Company Members as of immediately prior to the Closing will hold, in the aggregate, approximately 82% of the fully diluted shares of ERES Class A Common Stock immediately following the Closing (assuming that no shares of ERES

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Class A Common Stock are validly redeemed). See the section entitled “The Merger Agreement—Merger Consideration.”

ERES is, and after the Closing will continue to be, managed by its board of directors. Following the Closing, the size of our board of directors will be seven directors.

Following the Closing, we expect that a majority of the directors will be independent under applicable Nasdaq listing rules. See the section entitled “Management of the Post-Combination Company Following the Business Combination” for more information.

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(b) The presentation includes shares that may be issued but are not presently outstanding and, as such, differ from the share counts shown or assumed in the sections entitled “Summary Unaudited Pro Forma Condensed Combined Financial Information,” “Unaudited Historical Comparative and Pro Forma Combined Per Share Data of ERES and the Companies,” “Unaudited Pro Forma Condensed Combined Financial Information” and “Comparative Historical and Unaudited Pro Forma Combined Per Share Financial Information,” which sections are limited to shares that are presently issued and outstanding.

The following table further illustrates the impact on relative fully diluted ownership levels of the Post-Combination Company for each source of dilution, namely the issuance of Class A Common Stock under (i) the 17,250,000 public warrants, (ii) the 7,120,000 Private Placement Warrants, (iii) the 1,780,000 warrants under the warrant pool granted to the Post-Combination Company, (iv) the 1,000,000 Extension Warrants, (v) the 333,333 Second Extension Warrants and (vi) the Incentive Plan.

x

In addition to the changes in percentage ownerships depicted above, variations in redemptions and dilutive equity issuances will also affect the per share value as illustrated in the table below.

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(b) The presentation includes shares that may be issued but are not presently outstanding and, as such, differ from the share counts shown or assumed in the sections entitled “Summary Unaudited Pro Forma Condensed Combined Financial Information,” “Unaudited Historical Comparative and Pro Forma Combined Per Share Data of ERES and the Companies,” “Unaudited Pro Forma Condensed Combined Financial Information” and “Comparative Historical and Unaudited Pro Forma Combined Per Share Financial Information,” which sections are limited to shares that are presently issued and outstanding.

(b) Includes shares that may be issued but are not presently outstanding and, as such, differs from the share counts shown or assumed in the sections entitled “Summary Unaudited Pro Forma Condensed Combined Financial Information,” “Unaudited Historical Comparative and Pro Forma Combined Per Share Data of ERES and the Companies,” “Unaudited Pro Forma Condensed Combined Financial Information” and “Comparative Historical and Unaudited Pro Forma Combined Per Share Financial Information,” which sections are limited to shares that are presently issued and outstanding.

If a Public Stockholder exercises its redemption rights, such exercise will not result in the loss of any warrants that it may hold. We cannot predict the ultimate value of the ERES public warrants following the consummation of the Business Combination, but assuming that 100%, or 2,856,047 shares of Class A Stock held by our Public Stockholders were redeemed, the 17,250,000 retained outstanding ERES public warrants would have an aggregate value of $1.73 million based on a price per ERES public warrant of $0.10 on April 20, 2023, the most recent practicable date prior to the date of this proxy statement.

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QUESTIONS AND ANSWERS ABOUT THE SPECIAL MEETING

ERES will hold the Special Meeting to consider and vote upon these Proposals. This proxy statement contains important information about the proposed Mergers and the other matters to be acted upon at the Special Meeting.

Stockholders should read this proxy statement carefully, including the Annexes and the other documents referred to herein.

Consummation of the Business Combination is conditioned on the approval of each of the Business Combination Proposal, the Charter Approval Proposal, the Nasdaq Proposal and the Incentive Plan Proposal, subject to the terms of the Merger Agreement. If the Business Combination Proposal is not approved, the other Proposals, except the Adjournment Proposal, will not be presented to stockholders for a vote.

The vote of stockholders is important. Stockholders are encouraged to vote as soon as possible after carefully reviewing this proxy statement.

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On July 27, 2020, ERES completed the ERES IPO at a price per unit of $10.00, with each unit consisting of one share of Class A Common Stock and one-half of one public warrant, each whole public warrant eligible to purchase one share of Class A Common Stock at a price of $11.50, raising total gross proceeds of $300,000,000. On the same date, ERES also completed a private placement of warrants to its Sponsor, raising total gross proceeds of $8,000,000. On August 25, 2021, the underwriter in the ERES IPO fully exercised its over-allotment option, resulting in the offering of an additional 4,500,000 units and 900,000 Private Placement Warrants. Following the closing of the over-allotment option, an aggregate of $345,000,000 was placed in ERES’s Trust Account. On July 25, 2022, ERES’s stockholders approved an amendment to its Existing Charter (the “Extension Amendment”) that extended the date by which ERES must consummate its initial business combination from July 27, 2022 to January 27, 2023. In connection with the Extension Amendment, ERES issued the Extension Note in the aggregate principal amount of up to $1,924,356.46 to the Sponsor, pursuant to which the Sponsor agreed to loan ERES up to $1,924,356.46 in connection with the Extension Amendment. Also in connection with the Extension Amendment, stockholders holding 24,781,028 shares of Class A Common Stock exercised their right to redeem such shares for a pro rata portion of the funds in the Trust Account. As a result, approximately $97,939,800.60 remained in the Trust Account after paying such redeeming holders, prior to the Sponsor’s deposit of additional funds in connection with the Extension Amendment. On January 20, 2023, ERES’s stockholders approved an amendment to its Existing Charter (the “Second Extension Amendment”) that extended the date by which ERES must consummate its initial business combination from January 27, 2023 to July 27, 2023. In connection with the Second Extension Amendment, ERES issued the Second Extension Note in the aggregate principal amount of up to $565,497.31 to the Sponsor, pursuant to which the Sponsor agreed to loan ERES up to $565,497.31 in connection with the Second Extension Amendment. Also in connection with the Second Extension Amendment, stockholders holding 6,862,925 shares of Class A Common Stock exercised their right to redeem such shares for a pro rata portion of the funds in the Trust Account. As a result, approximately $29,102,648.33 remained in the Trust Account after paying such redeeming holders, prior to the Sponsor’s deposit of additional funds in connection with the Second Extension Amendment.

Based on its due diligence investigations of the Companies and the industry in which they operate, including the financial and other information provided by the Companies in the course of their negotiations in connection with the Merger Agreement, ERES believes that the Business Combination with the Companies

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is advisable and in the best interests of ERES and its stockholders. See the section entitled “The Business Combination—ERES Reasons for Approval of the Business Combination.”

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Notwithstanding the foregoing, a holder of Public Shares, together with any affiliate of such holder or any other person with whom such holder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Exchange Act) will be restricted from seeking redemption with respect to more than 20% of the Public Shares without the consent of ERES. Accordingly, all Public Shares in excess of 20% held by a Public Stockholder, together with any affiliate of such stockholder or any other person with whom such holder is acting in concert or as a “group,” will not be redeemed without the consent of ERES.

Under ERES’s Existing Charter, the Mergers may be consummated only if ERES has at least $5,000,001 of net tangible assets after giving to all holders of Public Shares that properly demand redemption of their shares their pro rata portion of cash held in the Trust Account.

Any request for redemption, once made by a holder of Public Shares, may be withdrawn at any time up to the time the vote is taken with respect to the Business Combination Proposal at the Special Meeting. If you deliver your Public Shares for redemption to ERES’s transfer agent and later decide prior to the Special Meeting not to elect redemption, you may request that ERES’s transfer agent return the Public Shares (physically or electronically).

If a holder of Public Shares properly makes a request for redemption and the Public Shares are delivered to ERES’s transfer agent as described herein, then, if the Mergers are consummated, ERES will redeem those shares for a pro rata portion of funds deposited in the Trust Account. If you exercise your redemption rights, then you will be exchanging your Public Shares for cash and you will cease to have any rights as an ERES stockholder (other than the right to receive the redemption amount) upon consummation of the Mergers.

For a discussion of the material U.S. federal income tax considerations for holders of Public Shares with respect to the exercise of these redemption rights, see the section entitled “Material U.S. Federal Income Tax Consequences—Material U.S. Federal Income Tax Consequences of the Redemption of Public Shares.”

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With respect to the regulation of special purpose acquisition companies like ERES (“SPACs”), on March 30, 2022, the SEC issued proposed rules (the “SPAC Rule Proposals”) relating to, among other items, disclosures in business combination transactions involving SPACs and private operating companies; the condensed financial statement requirements applicable to transactions involving shell companies; the use of projections by SPACs in SEC filings in connection with proposed business combination transactions; the potential liability of certain participants in proposed business combination transactions; and the extent to which SPACs could become subject to regulation under the Investment Company Act, including a proposed rule that would provide SPACs a safe harbor from treatment as an investment company if they satisfy certain conditions that limit a SPAC’s duration, asset composition, business purpose and activities.

With regard to the SEC’s investment company proposals included in the SPAC Rule Proposals, while the funds in the Trust Account have, since the ERES IPO, been held only in U.S. government treasury bills with a maturity of 185 days or less or in money market funds investing solely in U.S. Treasuries, to mitigate the risk of being viewed as operating an unregistered investment company (including pursuant to the subjective

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test of Section 3(a)(1)(A) of the Investment Company Act), on June 22, 2022, ERES instructed Continental Stock Transfer & Trust Company, the trustee managing the Trust Account, to hold all funds in the Trust Account in cash until the earlier of the consummation of the Business Combination and the liquidation of ERES.

On July 25, 2022, ERES entered into the Extension Note with the Sponsor, pursuant to which the Sponsor agreed to contribute to ERES as a loan $0.033 for each Public Share that was not redeemed in connection with the stockholder vote to approve the extension of the date by which ERES must complete an initial business combination from July 27, 2022 to January 27, 2023 (which extension was approved at the special meeting of ERES on July 25, 2022), for each month until the earlier of (i) the date of consummation of ERES’s initial business combination and (ii) the date of liquidation of ERES. Such contributions will be deposited into the Trust Account. Additionally, in connection with the stockholder approval of such extension in July 2022, certain stockholders elected to redeem an aggregate of 24,781,028 Public Shares, or approximately 71.83% of the then outstanding Public Shares. Such redemption demands have been completed and such shares have been redeemed and, in relation thereto, we paid cash from the Trust Account in the aggregate amount of approximately $248,087,256.06, or approximately $10.01 per share, to redeeming stockholders. As a result, approximately $97,939,800.60 remained in the Trust Account after paying such redeeming holders.

On January 23, 2023, ERES entered into the Second Extension Note with the Sponsor, pursuant to which the Sponsor agreed to contribute to ERES as a loan $0.033 for each Public Share that was not redeemed in connection with the stockholder vote to approve the extension of the date by which ERES must complete an initial business combination from January 27, 2023 to July 27, 2023 (which extension was approved at the special meeting of ERES on January 20, 2023), for each month until the earlier of (i) the date of consummation of ERES’s initial business combination and (ii) the date of liquidation of ERES. Such contributions will be deposited into the Trust Account. Additionally, in connection with the stockholder approval of such extension in January 2023, certain stockholders elected to redeem an aggregate of 6,862,925 Public Shares, or approximately 70.61% of the then outstanding Public Shares. Such redemption demands have been completed and such shares have been redeemed and, in relation thereto, we paid cash from the Trust Account in the aggregate amount of approximately $69,932,074.88, or approximately $10.19 per share, to redeeming stockholders. As a result, approximately $29,102,648.33 remained in the Trust Account after paying such redeeming holders. As of [●], 2023, there is $[●] remaining in the Trust Account.

After consummation of the Mergers, the funds in the Trust Account will be used to pay holders of the Public Shares who exercise redemption rights, to pay fees and expenses incurred in connection with the Mergers and for the Post-Combination Company’s working capital and general corporate purposes.

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While ERES is using its best efforts to complete the Business Combination with the Companies on or before the expiration of the Completion Window, the ERES Board cannot guarantee that an additional extension will not be necessary. However, at this time, the ERES Board does not believe that an additional extension beyond the Completion Window will be necessary to complete the Business Combination.

The Charter Approval Proposal: The affirmative vote (in person or by proxy) of (i) the holders of a majority of the shares of Class B Common Stock then outstanding and entitled to vote, voting separately as a single class, (ii) the holders of a majority of the shares of Class A Common Stock then outstanding and entitled to vote, voting separately as a single class, and (iii) the holders of a majority of the shares of ERES Common Stock then outstanding and entitled to vote, voting together as a single class, is required to approve the Charter Approval Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Charter Approval Proposal, will have the same effect as a vote “AGAINST” such Proposal. The Mergers are conditioned on the approval of the Charter Approval Proposal, subject to the terms of the Merger Agreement. If the Business Combination Proposal is not approved, the Charter Approval Proposal will not be presented to the stockholders for a vote.

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The Governance Proposal: The affirmative vote (in person or by proxy) of the holders of a majority of the shares of Class A Common Stock and Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class, is required to approve the Governance Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Governance Proposal, will have no effect on the Governance Proposal. The Mergers are not conditioned on the approval of the Governance Proposal. If the Business Combination Proposal is not approved, the Governance Proposal will not be presented to the stockholders for a vote.

The Director Election Proposal: The affirmative vote (in person or by proxy) of the holders of a plurality of the outstanding shares of Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class, is required to approve the Director Election Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Director Election Proposal, will have no effect on the election of directors. The Mergers are not conditioned on the approval of the Director Election Proposal. If the Business Combination Proposal is not approved, the Director Election Proposal will not be presented to the stockholders for a vote.

The Nasdaq Proposal: The affirmative vote (in person or by proxy) of the holders of a majority of the shares of Class A Common Stock and Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class, is required to approve the Nasdaq Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Nasdaq Proposal, will have no effect on the Nasdaq Proposal. The Mergers are conditioned on the approval of the Nasdaq Proposal, subject to the terms of the Merger Agreement. If the Business Combination Proposal is not approved, the Nasdaq Proposal will not be presented to the stockholders for a vote.

The Incentive Plan Proposal: The affirmative vote (in person or by proxy) of the holders of a majority of the shares of Class A Common Stock and Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class, is required to approve the Incentive Plan Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Incentive Plan Proposal, will have no effect on the Incentive Plan Proposal. The Mergers are conditioned on the approval of the Incentive Plan Proposal, subject to the terms of the Merger Agreement. If the Business Combination Proposal is not approved, the Incentive Plan Proposal will not be presented to the stockholders for a vote.

The Adjournment Proposal: The affirmative vote (in person or by proxy) of the holders of a majority of the shares of Class A Common Stock and Class B Common Stock entitled to vote and actually cast thereon at the Special Meeting, voting as a single class, is required to approve the Adjournment Proposal. Accordingly, a stockholder’s failure to vote by proxy or to vote in person (which would include presence at a virtual meeting) at the Special Meeting, as well as an abstention from voting and a broker non-vote with regard to the Adjournment Proposal, will have no effect on the Adjournment Proposal. The Mergers are not conditioned on the approval of the Adjournment Proposal.

As further discussed in the section entitled “Other Agreements—Sponsor Support Agreement,” the Sponsor has entered into a letter agreement with ERES and the Companies, a copy of which is attached as Annex D to this proxy statement (the “Sponsor Support Agreement”), pursuant to which the Sponsor agreed to vote its shares in favor of the each of the Proposals presented at the Special Meeting.

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These interests include, among other things:

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(b) Includes shares that may be issued but are not presently outstanding and, as such, differs from the share counts shown or assumed in the sections entitled “Summary Unaudited Pro Forma Condensed Combined Financial Information,” “Unaudited Historical Comparative and Pro Forma Combined Per Share Data of ERES and the Companies,” “Unaudited Pro Forma Condensed Combined Financial Information” and “Comparative Historical and Unaudited Pro Forma Combined Per Share Financial Information,” which sections are limited to shares that are presently issued and outstanding.

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Under Nasdaq rules, brokers who hold shares in “street name” for a beneficial owner of those shares typically have the authority to vote in their discretion on “routine” proposals when they have not received instructions from beneficial owners. However, brokers are not permitted to exercise their voting discretion with respect to the approval of matters that Nasdaq determines to be “non-routine” without specific instructions from the beneficial owner. It is expected that all proposals to be voted on at the Special Meeting are “non-routine” matters. Broker non-votes occur when a broker or nominee is not instructed by the beneficial owner of shares to vote on a particular proposal for which the broker does not have discretionary voting power.

If you are an ERES stockholder holding your shares in “street name” and you do not instruct your broker, bank or other nominee on how to vote your shares, your broker, bank or other nominee will not vote your shares on the Business Combination Proposal, the Charter Approval Proposal, the Governance Proposal, the Director Election Proposal, the Nasdaq Proposal, the Incentive Plan Proposal or the Adjournment Proposal. Such broker non-votes will be the equivalent of a vote “AGAINST” the Charter Approval Proposal, but will have no effect on the vote count for such other Proposals.

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If you are an ERES stockholder that attends the Special Meeting virtually and fails to vote on the Charter Approval Proposal, your failure to vote will have the same effect as a vote “AGAINST” such Proposal.

If you are an ERES stockholder that attends the Special Meeting virtually and fail to vote on the Business Combination Proposal, Governance Proposal, the Nasdaq Proposal, the Incentive Plan Proposal and the Adjournment Proposal, your failure to vote will have no effect on the Business Combination Proposal, the Governance Proposal, the Nasdaq Proposal, the Incentive Plan Proposal or the Adjournment Proposal.

If you are a stockholder of record of ERES and you choose to send a written notice or to mail a new proxy, you must submit your notice of revocation or your new proxy to ERES’s transfer agent, and it must be received at any time before the vote is taken at the Special Meeting. Any proxy that you submitted may also be revoked by submitting a new proxy by mail, or online or by telephone, not later than 11:59 p.m. Eastern Time on [●], 2023, or by voting online at the Special Meeting. Simply attending the Special Meeting will not revoke your proxy. If you have instructed a broker, bank or other nominee to vote your ERES shares, you must follow the directions you receive from your broker, bank or other nominee in order to change or revoke your vote.

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Morrow Sodali LLC

333 Ludlow St., 5^th Floor, South Tower

Stamford, Connecticut 06902

Stockholders may call toll free: (800) 662-5200

Banks and Brokers may call collect: (203) 658-9400

ERES.info@investor.morrowsodali.com

You may also obtain additional information about ERES from documents filed with the SEC by following the instructions in the section entitled “Where You Can Find More Information.” If you are a holder of Public Shares and you intend to seek redemption of your Public Shares, you will need to deliver your stock (either physically or electronically) to ERES’s transfer agent at the address below prior to the vote at the Special Meeting. If you have questions regarding the certification of your position or delivery of your stock, please contact:

Continental Stock Transfer & Trust Company

1 State Street 30th Floor

New York, New York 10004

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