# EDGAR Filing Document

**Accession Number:** 0001853774
**File Stem:** 0001829126-23-002383
**Filing Date:** 2023-3
**Character Count:** 29370
**Document Hash:** 1361a2503cf188c2c0775ac01808b13d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829126-23-002383.hdr.sgml**: 20230329

**ACCESSION NUMBER**: 0001829126-23-002383

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20230329

**ITEM INFORMATION**: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230329

**DATE AS OF CHANGE**: 20230329

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mountain Crest Acquisition Corp. IV
- **CENTRAL INDEX KEY:** 0001853774
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40562
- **FILM NUMBER:** 23776211

**BUSINESS ADDRESS:**
- **STREET 1:** 311 WEST 43RD STREET, 12TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036
- **BUSINESS PHONE:** 646-493-6558

**MAIL ADDRESS:**
- **STREET 1:** 311 WEST 43RD STREET, 12TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036

?xml version="1.0" encoding="utf-8"?

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Form 8-K**

**Current Report**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

**March 29, 2023**

Date of Report (Date of earliest event reported)

**<u>Mountain Crest Acquisition Corp. IV</u>**

(Exact Name of Registrant as Specified in its Charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **001-40562** | **86-2435859** |
| (State or other jurisdiction<br> of incorporation) | (Commission<br> File Number) | (I.R.S. Employer<br> Identification No.) |

---

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| | |
|:---|:---|
| **311 West 43rd Street, 12th Floor<br> New York, NY** | **10036** |
| (Address of Principal Executive Offices) | (Zip Code) |

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Registrant's telephone number, including area code: **(646) 493-6558**

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☒ Written communications pursuant to Rule 425 under the Securities Act

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock | MCAF | The Nasdaq Stock Market LLC |
| Rights | MCAFR | The Nasdaq Stock Market LLC |
| Units | MCAFU | The Nasdaq Stock Market LLC |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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| | |
|:---|:---|
| **Item 2.03** | **Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.** |

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As previously reported, pursuant to our stockholders' approval at the special meeting of stockholders held on December 15, 2022 (the "**Special Meeting**"), Mountain Crest Acquisition Corp IV ("**Company**") (1) filed an amendment to its Amended and Restated Certificate of Incorporation with the Delaware Secretary of State on December 15, 2022, giving the Company the right to extend the time for the Company to complete its initial business combination (the "**<u>Business Combination Period</u>**") from January 2, 2023 to April 2, 2023, plus an option for the Company to further extend such date to July 2, 2023 and (2) entered into an amendment to the Investment Management Trust Agreement, dated as of June 29, 2021, with Continental Stock Transfer & Trust Company, on December 15, 2022 (the "**Trust Agreement**"), pursuant to which the Company has the right to extend the Business Combination Period under the Trust Agreement from January 2, 2023 to April 2, 2023, plus an option for the Company to further extend such date to July 2, 2023 and to be further extended to the extent the Company's Amended and Restated Certificate of Incorporation is amended to extend the Business Combination Period. On March 27, 2023, the Company extended the time it has to complete its initial business combination from April 2, 2023 to July 2, 2023 by depositing $343,936 in to the trust account on March 29, 2023 (the "Extension Payment").

CH Auto Technology Corporation Ltd. ("**CH AUTO**"), the target company to the Company's proposed business combination loaned the Company $350,000 to fund the Extension Payment. On March 29, 2023, the Company issued an unsecured promissory note in the aggregate principal amount of $350,000 (the "Note") to CH AUTO. Pursuant to the Note, CH AUTO loaned the Company an aggregate amount of $350,000 that is due and payable on the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if a business combination is not consummated. The Note does not bear interest. In the event that the Company does not consummate a business combination, the Note will be forgiven, except to the extent of funds remaining outside of the Company's trust account, if any. In addition, the Note may be converted at the closing of a business combination by the Company into the Company's common stock or ordinary shares, at CH AUTO's option, at a price of $10.00 per share of common stock or ordinary share.

The proceeds of the Note have been used by the Company to make a deposit $343,936 into the Trust Account to extend the time period for the Company to consummate its initial business combination from April 2, 2023 to July 2, 2023.

The foregoing description of the Note is qualified in its entirety by reference to the full text of the Note, a copy of which is filed with this Current Report on Form 8-K as Exhibit 10.1 and is incorporated herein by reference.

**IMPORTANT NOTICES**

**Additional Information and Where to Find It**

On April 30, 2022, Mountain Crest Acquisition Corp. IV, a Delaware corporation ("MCAF"), entered into that certain Agreement and Plan of Merger (as may be amended, supplemented or otherwise modified from time to time, the "Merger Agreement"), by and among MCAF, CH AUTO, Inc., a Cayman Islands exempted company (Pubco"), CH-AUTO Company Merger Sub Corp., a Delware corporation and wholly owned subsidiary of Pubco ("Company Merger Sub") and CH-AUTO TECHNOLOGY CORPORATION LTD., a company orgianized under the law of the People's Republic of China (the "Company"), pursuant to which, among other things, MCAF, Pubco, Company Merger Sub and the Company intend to effect a merger of Company Merger Sub with and into MCAF whereby MCAF will be the surviving corporation (the "Surviving Corporation") and a wholly owned subsidiary of Pubco (the "Merger") in accordance with the Merger Agreement and the General Corporation Law of the State of Delaware (the "DGCL"). In connection with the Merger, the name of the Surviving Corporation shall be changed to CH Autotech USA, Inc. Following the Merger, Pubco expects its ordinary shares to be traded on The Nasdaq Stock Market. In connection with this transaction, Pubco and MCAF will file relevant materials with the Securities and Exchange Commission (the "**SEC**"), including the Registration Statement on Form F-4 and a proxy statement (the "**Registration Statement**"). The Registration Statement will include a proxy statement to be distributed to holders of MCAF's common stock in connection with MCAF's solicitation of proxies for the vote by MCAF shareholders with respect to the proposed transaction and other matters as described in the Registration Statement, as well as the prospectus relating to the offer of securities to be issued to the Company's stockholders in connection with the proposed business combination. After the Registration Statement has been filed and declared effective, MCAF will mail a definitive proxy statement, when available, to its stockholders. Investors and security holders and other interested parties are urged to read the Registration Statement, any amendments thereto and any other documents filed with the SEC carefully and in their entirety when they become available because they will contain important information about MCAF, the Company and the proposed business combination. Additionally, MCAF will file other relevant materials with the SEC in connection with the business combination. Copies of these documents may be obtained free of charge at the SEC's web site at www.sec.gov. Securityholders of MCAF are urged to read the Registration Statement and the other relevant materials when they become available before making any voting decision with respect to the proposed business combination because they will contain important information. The Registration Statement and proxy statement, once available, may also be obtained without charge at the SEC's website at www.sec.gov or by writing to MCAF at 311 West 43rd Street, 12th Floor, New York, NY 10036. INVESTORS AND SECURITY HOLDERS OF MCAF ARE URGED TO READ THESE MATERIALS (INCLUDING ANY AMENDMENTS OR SUPPLEMENTS THERETO) AND ANY OTHER RELEVANT DOCUMENTS IN CONNECTION WITH THE TRANSACTIONS THAT MCAF WILL FILE WITH THE SEC WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT MCAF, THE COMPANY AND THE TRANSACTIONS.

**Important Notice Regarding Forward-Looking Statements**

This Current Report on Form 8-K contains certain "forward-looking statements" within the meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934, both as amended. Statements that are not historical facts, including statements about the pending transactions described above, and the parties' perspectives and expectations, are forward-looking statements. Such statements include, but are not limited to, statements regarding the proposed transaction, including the anticipated initial enterprise value and post-closing equity value, the benefits of the proposed transaction, integration plans, expected synergies and revenue opportunities, anticipated future financial and operating performance and results, including estimates for growth, the expected management and governance of the combined company, and the expected timing of the transactions. The words "expect," "believe," "estimate," "intend," "plan" and similar expressions indicate forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to various risks and uncertainties, assumptions (including assumptions about general economic, market, industry and operational factors), known or unknown, which could cause the actual results to vary materially from those indicated or anticipated.

The forward-looking statements are based on the current expectations of the management of MCAF and the Company, as applicable, and are inherently subject to uncertainties and changes in circumstances and their potential effects and speak only as of the date of such statement. There can be no assurance that future developments will be those that have been anticipated. These forward-looking statements involve a number of risks, uncertainties or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements including: risks related to the Company's businesses and strategies; the ability to complete the proposed business combination due to the failure to obtain approval from MCAF's stockholders or satisfy other closing conditions in the definitive merger agreement; the amount of any redemptions by existing holders of MCAF's common stock; the ability to recognize the anticipated benefits of the business combination; in the final prospectus of Mountain Crest Acquisition Corp. IV for its initial public offering dated June 29, 2021; and in Mountain Crest Acquisition Corp. IV's other filings with the SEC. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated or anticipated by such forward-looking statements. Accordingly, you are cautioned not to place undue reliance on these forward-looking statements. Forward-looking statements relate only to the date they were made, and MCAF, the Company and their subsidiaries undertake no obligation to update forward-looking statements to reflect events or circumstances after the date they were made except as required by law or applicable regulation.

**Participants in Solicitation**

MCAF the Company and their respective directors and executive officers may be deemed participants in the solicitation of proxies with respect to the proposed business combination under the rules of the SEC. Securityholders may obtain more detailed information regarding the names, affiliations, and interests of certain of MCAF's executive officers and directors in the solicitation by reading MCAF's Registration Statement and other relevant materials filed with the SEC in connection with the proposed business combination when they become available. Information about MCAF's directors and executive officers and their ownership of MCAF common stock is set forth in MCAF's prospectus related to its initial public offering dated June 29, 2021, as modified or supplemented by any Form 3 or Form 4 filed with the SEC since the date of that filing. Other information regarding the interests of MCAF's participants in the proxy solicitation, which in some cases, may be different than those of their stockholders generally, will be set forth in the Registration Statement relating to the proposed business combination when it becomes available. These documents can be obtained free of charge at the SEC's web site at www.sec.gov.

The Company and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the stockholders of MCAF in connection with the proposed business combination. A list of the names of such directors and executive officers and information regarding their interests in the proposed business combination will be included in the Registration Statement for the proposed business combination.

**No Offer or Solicitation**

This Current Report on Form 8-K is not a proxy statement or solicitation of a proxy, consent or authorization with respect to any securities or in respect of the transactions described above and shall not constitute an offer to sell or a solicitation of an offer to buy the securities of MCAF or the Company, nor shall there be any sale of any such securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, or an exemption therefrom.

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| | |
|:---|:---|
| **Item 9.01.** | **Financial Statements and Exhibits.** |

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| [10.1](mountaincrest4_ex10-1.htm) | [Form of Promissory Note in the principal amount of $350,000 between Mountain Crest Acquisition Corp. IV and CH Auto Technology Corporation, Ltd.](mountaincrest4_ex10-1.htm) |
| 104 | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document. |

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | |
|:---|:---|
| Dated: March 29, 2023 | Dated: March 29, 2023 |
| MOUNTAIN CREST ACQUISITION CORP. IV | MOUNTAIN CREST ACQUISITION CORP. IV |
| By: | */s/ Suying Liu* |
| Name: | Suying Liu |
| Title: | Chief Executive Officer |

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## Exhibit 10.1

**Exhibit 10.1**

THIS PROMISSORY NOTE ("NOTE") HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

**PROMISSORY NOTE**

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| | |
|:---|:---|
| Principal Amount: $350,000 | Issuance Date: March 29, 2023 |

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Mountain Crest Acquisition Corp. IV or its registered assigns or successors in interest (the "**Maker**"), promises to pay to the order of CH Auto Technology Corporation Ltd., an entity formed under the laws of the Peoples Republic of China (the "**Payee**"), the principal sum as set forth above (the "**Principal Amount**") in lawful money of the United States of America, on the terms and conditions described below. The Maker and Payee shall collectively be referred to as the "**Parties**." All payments on this Note shall be made by check or wire transfer of immediately available funds or as otherwise determined by the Maker to such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1. Principal.** The principal balance of this Note shall be payable by the Maker on the earlier of: (i) the date on which Maker consummates a business combination with target businesses, or (ii) the date the Maker liquidates if a business combination is not consummated (the "**Due Date**"). The principal balance may be prepaid at any time. The principal balance shall be payable by the Maker either: (i) in cash, or (ii) in shares of Maker's common stock (the "**Conversion Shares**"), par value $0.0001, at the Payee's election in writing. Payee may elect to convert any outstanding principal balance into Conversion Shares, at any time when this Note remains outstanding, at a fixed conversion price of $10.00 per share. Under no circumstances shall any individual, including but not limited to any officer, director, employee or shareholder of the Maker, be personally obligated for any obligations or liabilities of the Maker hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2. Interest.** No interest shall accrue on the unpaid principal balance of this Note.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3. Application of Payments.** All payments shall be applied first to payment in full of any costs incurred in the collection of any sum due under this Note, including (without limitation) reasonable attorneys', then to the payment in full of any late charges and finally to the reduction of the unpaid principal balance of this Note.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4. Forgiveness**. The Maker and Payee and others, entered into a certain agreement and plan of merger dated April 30, 2022, as amended (the "**Merger Agreement**"), pursuant to which the Maker shall consummate the initial business combination by July 2, 2023 (the "**Combination Period**"). The Note will be forgiven by the Payee if the Maker is unable to consummate the initial business combination by the Due Date, except to the extent of any funds held outside of the trust account (the "**Trust Account**") maintained with Continental Stock Transfer & Trust Company ("**CST**") pursuant to an investment management trust agreement, dated as of June 29, 2021, as amended, by the Maker and CST.

For clarification purposes, the Note shall be due and payable by the Maker on the Due Date in the event that the Maker consummates the initial business combination with or without the Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5. Events of Default.** The following shall constitute an event of default ("**Event of Default**"):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Failure to Make Required Payments</u>. Failure by Maker to pay the Principal Amount due pursuant to this Note within five (5) business days from the Due Date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>Voluntary Bankruptcy, Etc</u>. The commencement by Maker of a voluntary case under any applicable bankruptcy, insolvency, reorganization, rehabilitation or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator (or other similar official) of Maker or for any substantial part of its property, or the making by it of any assignment for the benefit of creditors, or the failure of Maker generally to pay its debts as such debts become due, or the taking of corporate action by Maker in furtherance of any of the foregoing.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>Involuntary Bankruptcy, Etc</u>. The entry of a decree or order for relief by a court having jurisdiction in the premises in respect of Maker in an involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator (or similar official) of Maker or for any substantial part of its property, or ordering the winding-up or liquidation of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 60 consecutive days.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**6. Remedies.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Upon the occurrence of an Event of Default specified in Section 5(a) hereof, Payee may, by written notice to Maker, declare this Note to be due immediately and payable, whereupon the unpaid Principal Amount of this Note, and all other amounts payable hereunder, shall become immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby expressly waived, anything contained herein or in the documents evidencing the same to the contrary notwithstanding.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Upon the occurrence of an Event of Default specified in Sections 5(b) and 5(c), the unpaid principal balance of this Note, and all other sums payable with regard to this Note, shall automatically and immediately become due and payable, in all cases without any action on the part of Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7. Waivers.** Maker and all endorsers and guarantors of, and sureties for, this Note waive presentment for payment, demand, notice of dishonor, protest, and notice of protest with regard to the Note, all errors, defects and imperfections in any proceedings instituted by Payee under the terms of this Note, and all benefits that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal, or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under execution, or providing for any stay of execution, exemption from civil process, or extension of time for payment; and Maker agrees that any real estate that may be levied upon pursuant to a judgment obtained by virtue hereof or any writ of execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**8. Unconditional Liability.** Maker hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement of the payment of this Note, and agrees that its liability shall be unconditional, without regard to the liability of any other party, and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to by Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by Payee with respect to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors, or sureties may become parties hereto without notice to Maker or affecting Maker's liability hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**9. Notices.** All notices, statements or other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the address designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may be designated in writing by such party or (iii) by electronic mail, to the electronic mail address most recently provided to such party or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted shall be deemed to have been given on the day of delivery, if delivered personally, on the business day following receipt of written confirmation, if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days after mailing if sent by mail.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**10. Construction.** THIS NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF. The Parties irrevocably submits to the exclusive jurisdiction of any New York State or United States Federal court sitting in The City of New York, Borough of Manhattan, over any suit, action or proceeding arising out of or relating to this Note. The Parties irrevocably waive, to the fullest extent permitted by law, any objection that they may now or hereafter have to the laying of venue of any such suit, action or proceeding brought in such a court and any claim that any such suit, action or proceeding brought in such a court has been brought in an inconvenient forum.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**11. Severability.** Any provision contained in this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**12. Trust Waiver**. Notwithstanding anything herein to the contrary, the Payee hereby waives any and all right, title, interest or claim of any kind ("**Claim**") in or to any distribution of or from the Trust Account of the Maker in which the proceeds of the initial public offering (the "**IPO**") (including the deferred underwriters discounts) are deposited, as described in greater detail in the registration statement (file number 333-256449) and prospectus filed with the Securities and Exchange Commission in connection with the IPO, and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**13. Amendment; Waiver**. Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written consent of the Maker and the Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**14. Assignment**. No assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise) without the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

[Signature page follows]

**IN WITNESS WHEREOF**, Maker, intending to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first above written.

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| | | |
|:---|:---|:---|
| Mountain Crest Acquisition Corp. IV | Mountain Crest Acquisition Corp. IV | Mountain Crest Acquisition Corp. IV |
| By: | /s/ Suying Liu | /s/ Suying Liu |
|  | Name: | Suying Liu |
|  | Title: | Chief Executive Officer |

---