# EDGAR Filing Document

**Accession Number:** 0001824185
**File Stem:** 0001104659-23-028771
**Filing Date:** 2023-3
**Character Count:** 33653
**Document Hash:** 6b66ad1f014023cb98a4fecac773cc11
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-028771.hdr.sgml**: 20230306

**ACCESSION NUMBER**: 0001104659-23-028771

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20230306

**ITEM INFORMATION**: Entry into a Material Definitive Agreement

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

**ITEM INFORMATION**: Unregistered Sales of Equity Securities

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230306

**DATE AS OF CHANGE**: 20230306

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HH&L Acquisition Co.
- **CENTRAL INDEX KEY:** 0001824185
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MEDICAL LABORATORIES [8071]
- **IRS NUMBER:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40006
- **FILM NUMBER:** 23707548

**BUSINESS ADDRESS:**
- **STREET 1:** C/O SAPPHIRE QI LI, ONE EXCHANGE SQUARE
- **STREET 2:** 8 CONNAUGHT PLACE SUITE 3508
- **CITY:** CENTRAL
- **STATE:** K3
- **ZIP:** 00000
- **BUSINESS PHONE:** 852 6679 6578

**MAIL ADDRESS:**
- **STREET 1:** C/O SAPPHIRE QI LI, ONE EXCHANGE SQUARE
- **STREET 2:** 8 CONNAUGHT PLACE SUITE 3508
- **CITY:** CENTRAL
- **STATE:** K3
- **ZIP:** 00000

?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**

Date of Report (Date of earliest event reported): March 6, 2023

**HH&L Acquisition Co.**

(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Cayman Islands** | **001-40006** | **N/A** |
| (State or other jurisdiction<br> of incorporation) | (Commission<br> File Number) | (IRS Employer<br> Identification No.) |

---

---

| | |
|:---|:---|
| **Suite 2001-2002, 20/F, York House**<br> **The Landmark, 15 Queen's Road Central**<br> **Central, Hong Kong** | <br> **00000** |
| (Address of Principal Executive Offices) | (Zip Code) |

---

Registrant's telephone number, including area code: **(852) 3752 2870**

**Not Applicable**

(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 (17 CFR 230.425) |
| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

---

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

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Class A ordinary shares, par value $0.0001 per share | **HHLA** | **The New York Stock Exchange** |
| Redeemable warrants, each whole warrant exercisable for one Class A ordinary share, each at an exercise price of $11.50 per share | **HHLA WS** | **The New York Stock Exchange** |
| Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant | **HHLA.U** | **The New York Stock Exchange** |

---

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

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. ◻

**Item 1.01. Entry into a Material Definitive Agreement.**

As disclosed in the definitive proxy statement (the "Extension Proxy Statement") on Schedule 14A filed by HH&L Acquisition Co. (the "Company") on January 17, 2023 with the U.S. Securities and Exchange Commission (the "SEC"), HH&L Investment Co. (the "Sponsor") will loan to the Company 50% of each Contribution (as defined in the Extension Proxy Statement) to implement the Extension (as defined in the Extension Proxy Statement). Such loans to the Company for the Contributions will not bear interest and will be repayable by the Company to the Sponsor upon consummation of an initial business combination. The loans will be forgiven 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 "Trust Account") established by the Company in which the proceeds of its initial public offering and the proceeds of the sale of the warrants issued to the Sponsor in the private placement that closed on February 5, 2021 (the "Private Placement Warrants") prior to the consummation of its initial public offering were deposited.

Furthermore, as disclosed in the final prospectus of the Company filed with the SEC pursuant to Rule 424(b) (Registration No. 333-252254), dated February 5, 2021, the Sponsor may make loans to the Company as may be required on a non-interest basis. Up to $1,500,000 of such loans may be convertible into warrants with identical terms with the Private Placement Warrants at a price of $1.00 per warrant at the option of the Sponsor.

On March 6, 2023, HH&L Acquisition Co. (the "Company") issued an unsecured convertible promissory note (the "Note") to the Sponsor, pursuant to which the Company may borrow up to $600,000 under the Note. The Company may apply up to $570,000 under the Note to fund the Company's deposit (the "Extension Deposit") in the Trust Account for effecting the Extension (the "Extension Deposit Amount"), and shall apply any remaining amount under the Note for general corporate purpose ("General Corporate Amount"). The initial principal balance outstanding under the Note is $190,000 as of March 6, 2023, which was used to fund the Extension Deposit. The Company may further draw down the Note in aggregate principal amount up to $410,000.

The General Corporate Amount may, at the Sponsor's discretion, be converted into warrants (the "General Corporate Amount Warrants") to purchase Class A ordinary shares of the Company, par value $0.0001 per share, at a conversion price equal to $1.00 per warrant, with each warrant entitling the holder to purchase one Class A ordinary share of the Company at a price of $11.50 per share, subject to the same adjustments applicable to the Private Placement Warrants. The terms of the General Corporate Amount Warrants will be identical to those of the Private Placement Warrants.

The Note will not bear any interest, and will be repayable by the Company to the Sponsor, if not converted or repaid on the effective date of an initial merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination involving the Company and one or more businesses. The maturity date of the Note may be accelerated upon the occurrence of an Event of Default (as defined under the Note). In the event that an initial business combination is not consummated, the Extension Deposit Amount will be forgiven or eliminated, except to the extent of any fund held by the Company outside of the Trust Account.

The foregoing description of the Note does not purport to be complete and is qualified in its entirety by the terms and conditions of thereof. A copy of the Note is attached hereto as Exhibit 10.1 and incorporated herein by reference.

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

The information disclosed under Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03 to the extent required herein.

**Item 3.02. Unregistered Sales of Equity Securities** **.**

The information disclosed under Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 3.02 to the extent required herein.

The Working Capital Loan Warrants will not be registered under the Securities Act of 1933, as amended (the "Securities Act"), and will be issued in reliance on the exemption from registration requirements thereof provided by Section 4(a)(2) of the Securities Act.

**Item 9.01. Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp; Exhibits

**EXHIBIT INDEX**

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| [10.1](tm238219d3_ex10-1.htm) | [Convertible Promissory Note, dated as of March 6, 2023, issued to HH&L Investment Co..](tm238219d3_ex10-1.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

**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.

---

| | | |
|:---|:---|:---|
| **HH&L Acquisition Co.** | **HH&L Acquisition Co.** | **HH&L Acquisition Co.** |
| By: | /s/ Richard Qi Li | /s/ Richard Qi Li |
|  | Name: | Richard Qi Li |
|  | Title: | Chief Executive Officer |

---

Dated: March 6, 2023

## Exhibit 10.1

**Exhibit 10.1**

THIS CONVERTIBLE PROMISSORY NOTE ("NOTE") AND THE SECURITIES INTO WHICH IT MAY BE CONVERTED HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT") OR UNDER THE SECURITIES LAWS OF ANY STATE. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND THE APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME. THE MAKER MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE MAKER TO THE EFFECT THAT ANY SALE OR OTHER DISPOSITION IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS.

**CONVERTIBLE PROMISSORY NOTE**

---

| | |
|:---|:---|
| Principal Amount: up to $600,000 | Dated as of March 6, 2023 |

---

(as set forth on the Schedule of Borrowings attached hereto)

FOR VALUE RECEIVED and subject to the terms and conditions set forth herein, HH&L Acquisition Co., a Cayman Islands exempted company (the "**Maker**"), promises to pay to the order of HH&L Investment Co., a Cayman Islands exempted company, or its registered assigns or successors in interest (the "**Payee**"), or order, the Total Principal Amount (as defined below) or such less amount as shall remain unpaid under this Note, on the Maturity Date (as defined below), in lawful money of the United States of America, on the terms and conditions described below. 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;1. **Principal.** The initial principal balance of this Note of $190,000 (the "**Initial Principal Amount**"), together with any principal amount drawn down by the Maker following the date hereof pursuant to Section 3 below (together with the Initial Principal Amount, the "**Total Principal Amount**"), shall be due and payable on the effective date of an initial merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination involving the Maker and one or more businesses (the "**Business Combination**", and such date, the "**Maturity Date**"), unless accelerated upon the occurrence of an Event of Default (as defined below), *provided* that the Total Principal Amount of this Note shall not exceed $600,000 (the "**Maximum Principal Amount**"). The principal balance may be prepaid at any time; *provided, however*, that with respect to the General Corporate Amount (or any portion thereof), the Payee shall have a right to first convert such principal balance pursuant to Section 6 upon notice of such prepayment. Under no circumstances shall any individual, including but not limited to any officer, director, employee or shareholder of the Maker, be obligated personally for any obligations or liabilities of the Maker hereunder. The Payee agrees that if a Business Combination is not consummated, it will forfeit all of its rights and claims with respect to any unpaid principal balance under this Note that constitute the Extension Deposit Amount (as defined below) (or a portion thereof), except to the extent of any funds held by the Maker outside of the Trust Account (such forfeited amount, the "**Forfeited Amount**"), and thereupon, such Forfeited Amount shall be forgiven or eliminated..

&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;3. **Drawdowns**. The Maker and the Payee agree that the Maker may request an additional aggregate amount of up to $410,000 (the "**Maximum Drawdown Amount**"), which may be drawn down in one or more tranches (each a "**Drawdown**"). The Maker may specify the amount of principal balance and intended use(s) of such amount (and if there are more than one intended uses, the breakdown of the amounts intended to be allocated to each such use) for each Drawdown in a written request. The Payee shall fund each Drawdown promptly after receipt of a Drawdown request. Once an amount is drawn down under this Note, it shall not be available for future Drawdowns even if prepaid. No fees, payments or other amounts shall be due to Payee in connection with, or as a result of, any Drawdown by the Maker.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. **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 attorney's fees, 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;5. **Purpose.** The Maker may apply an amount up to $570,000 under this Note to fund the Maker's deposit (the "**Extension Deposit**") into the Trust Account for effecting the Extension (as such term is defined in the definitive proxy statement on Schedule 14A filed by the Maker on January 17, 2023 with the U.S. Securities and Exchange Commission) and shall apply any remaining amount advanced by the Payee under this Note towards general corporate purposes. For the avoidance of doubt, the Initial Principal Amount shall be applied to fund the Extension Deposit. The Maker shall specify in the written request for each Drawdown and the Schedule of Borrowings intended use(s) of the amount being drawn down (and if there are more than one intended uses, the breakdown of the amounts intended to be allocated to each such use). The sum of the amount advanced by the Payee under this Note whose intended use specified as "General Corporate" in the Schedule of Borrowings shall be referred to herein as the "**General Corporate Amount**," and the sum of the amount advanced by the Payee under this Note whose intended use is specified as "Funding Extension Deposit" in the Schedule of Borrowings shall be referred to herein as the "**Extension Deposit Amount**."

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. **Conversion.** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Optional Conversion</u>. At the option of the Payee, at any time prior to the Maturity Date, an amount up to the General Corporate Amount of this Note (or any portion thereof), may be converted into warrants to purchase Class A ordinary shares of the Maker (the "**Ordinary Shares**"), at a conversion price (the "**Conversion Price**") equal to $1.00 per warrant (such converted warrants, the "**Working Capital Warrants**"). If the Payee elects such conversion, the terms of such Working Capital Warrants issued in connection with such conversion shall be identical to the warrants issued to the Payee in the private placement that closed on February 5, 2021 (the "**Private Placement Warrants**") in connection with the initial public offering of the Maker's securities (the "**IPO**"). Each Working Capital Warrant entitles the holder thereof to purchase one Ordinary Share at a price of $11.50 per share, subject to the same adjustments applicable to the Private Placement Warrants. Before this Note may be converted pursuant to this Section 6(a), the Payee shall surrender this Note, duly endorsed, at the office of the Maker and shall state therein the amount of the unpaid principal of this Note to be converted and the name or names in which the certificates for Working Capital Warrants are to be issued (or the book-entries to be made to reflect ownership of such Working Capital Warrants with the Maker's transfer agent). The conversion shall be deemed to have been made immediately prior to the close of business on the date of the surrender of this Note and the person or persons entitled to receive the Working Capital Warrants upon such conversion shall be treated for all purposes as the record holder or holders of such Working Capital Warrants as of such date. Each such newly issued Working Capital Warrant shall include a restricted legend that contemplates the same restrictions as the Private Placement Warrants. The Working Capital Warrants and Ordinary Shares issuable upon exercise of the Working Capital Warrants shall constitute "Registrable Securities" pursuant to that certain Registration Rights Agreement dated February 5, 2021, among the Maker, the Payee and certain other security holders named therein.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>Remaining Principal</u>. All accrued and unpaid principal of this Note that is not then converted into Working Capital Warrants shall continue to remain outstanding and to be subject to the conditions of this Note.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>Fractional Warrants; Effect of Conversion</u>. No fractional Working Capital Warrants shall be issued upon conversion of this Note. In lieu of any fractional Working Capital Warrants to the Payee upon conversion of this Note, the Maker shall pay to the Payee an amount equal to the product obtained by multiplying the Conversion Price by the fraction of a Working Capital Warrant not issued pursuant to the previous sentence. Upon conversion of a portion of this Note and the payment of any amounts specified in this Section 6(c), the Total Principal Amount this Note shall be reduced by an amount equal to the principal amount of this Notes so converted, and the Maker shall make appropriate annotation on the Schedule of Borrowings and shall be released from its obligations and liabilities in connection with the principal amount of the Notes so converted in accordance with this Section 6.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. **Events of Default.** Each of 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 the Maker to pay all or a portion of the principal amount due pursuant to this Note (to the extent such principal amount is payable in cash) within five (5) business days of the Maturity Date and/or, if applicable, failure by the Maker to perform its obligations with respect to the conversion of the principal amount of this Note, in whole or in part, into Working Capital Warrants pursuant to Section 6 hereof or under the terms of such Working Capital Warrants.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>Voluntary Bankruptcy, Etc</u>. The commencement by the 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 the 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 the Maker generally to pay its debts as such debts become due, or the taking of corporate action by the 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 the 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 the 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 sixty (60) consecutive days.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8. **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 7(a) hereof, the Payee may, by written notice to the Maker, declare this Note to be due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable thereunder, 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 7(b) or 7(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 the Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9. **Waivers.** The 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 the Payee under the terms of this Note, and all benefits that might accrue to the 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 the Maker agrees that any real estate that may be levied upon pursuant to a judgment obtained by virtue hereof, on any writ of execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by the Payee.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10. **Unconditional Liability.** The 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 the Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by the 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 the Maker or affecting the Maker's liability hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11. **Notices.** All notices, statements or other documents which are required or contemplated by this Note shall be: (i) in writing and delivered 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;12. **Construction.** THIS NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13. **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;14. **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 (the "**Trust Account**") established by the Maker in which the proceeds of the IPO (including the deferred underwriters discounts and commissions) and the overallotment securities acquired by the underwriters acting as such in the IPO and the proceeds of the sale of the Private Placement Warrants prior to the consummation of the IPO were deposited, as described in greater detail in the registration statement and prospectus filed by the Maker with the SEC 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;15. **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;16. **Successors and Assigns.** Subject to the restrictions on transfer in Section 17 and Section 18, the rights and obligations of the Maker and the Payee hereunder shall be binding upon and benefit the successors, assigns, heirs, administrators and transferees of any party hereto (by operation of law or otherwise) with the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;17. **Transfer of this Note or Securities Issuable on Conversion.** With respect to any sale or other disposition of this Note or securities into which this Note may be converted, the Payee shall give written notice to the Maker prior thereto, describing briefly the manner thereof, together with (i) except for a Permitted Transfer, in which case the requirements in (i) shall not apply, (A) a written opinion (unless waived by the Maker) reasonably satisfactory to the Maker in form and substance from counsel reasonably satisfactory to the Maker to the effect that such sale or other distribution may be effected without registration or qualification under any U.S. federal or state law then in effect and (B) a written opinion from counsel reasonably satisfactory to the Maker or a certificate signed by at least one director of the Payee (in either case, unless waived by the Maker), reasonably satisfactory to the Maker in form and substance that such sale or other distribution does not violate, contravene, or result in a default by the Payee of, any agreement or instrument entered into by the Payee in connection with the IPO or the Business Combination, including but not limited to the Letter Agreement, and (ii) a written undertaking executed by the desired transferee reasonably satisfactory to the Maker in form and substance agreeing to be bound by the restrictions on transfer contained herein. Upon receiving such written notice, reasonably satisfactory opinion and/or certificate (unless waived by the Maker), or other evidence, and such written acknowledgement, the Maker, as promptly as practicable, shall notify the Payee that the Payee may sell or otherwise dispose of this Note or such securities, all in accordance with the terms of the note delivered to the Maker. If a determination has been made pursuant to this Section 17 that the opinion of counsel for the Payee, the certificate of the Payee, or other evidence, or the written acknowledgment from the desired transferee, is not reasonably satisfactory to the Maker, the Maker shall so notify the Payee promptly after such determination has been made. Each Note thus transferred shall bear a legend as to the applicable restrictions on transferability in order to ensure compliance with the Securities Act, unless in the opinion of counsel for the Maker such legend is not required in order to ensure compliance with the Securities Act. The Maker may issue stop transfer instructions to its transfer agent in connection with such restrictions. Subject to the foregoing, transfers of this Note shall be registered upon registration on the books maintained for such purpose by or on behalf of the Maker. Prior to presentation of this Note for registration of transfer, the Maker shall treat the registered holder hereof as the owner and holder of this Note for the purpose of receiving all payments of principal hereon and for all other purposes whatsoever, whether or not this Note shall be overdue and the Maker shall not be affected by notice to the contrary. For purposes hereof, "Permitted Transfer" shall have the same meaning as any transfer that would be permitted for the Private Placement Warrants under the Letter Agreement, dated February 5, 2021, among the Maker, the Payee and the other parties thereto (the "**Letter Agreement**").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18. **Acknowledgment.** The Payee is acquiring this Note for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection with, any distribution thereof in violation of applicable securities laws. The Payee understands that the acquisition of this Note involves substantial risk. The Payee has experience as an investor in securities of companies and acknowledges that it is able to fend for itself, can bear the economic risk of its investment in this Note, and has such knowledge and experience in financial and business matters that it is capable of evaluating the merits and risks of this investment in this Note and protecting its own interests in connection with this investment.

[*Signature page follows*]

**IN WITNESS WHEREOF**, the 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.

---

| | | |
|:---|:---|:---|
| HH&L Acquisition Co. | HH&L Acquisition Co. | HH&L Acquisition Co. |
| a Cayman Islands exempted company | a Cayman Islands exempted company | a Cayman Islands exempted company |
| By： | /s/ Richard Qi Li | /s/ Richard Qi Li |
|  | Name: | Richard Qi Li |
|  | Title: | Chief Executive Officer |

---

[*Signature Page to Convertible Promissory Note*]

Acknowledged and agreed as of the date first above written.

---

| | |
|:---|:---|
| HH&L Investment Co. | HH&L Investment Co. |
| a Cayman Islands exempted company | a Cayman Islands exempted company |
| By： | /s/ Richard Qi Li |
| Name: | Richard Qi Li |
| Title: | Director |

---

[*Signature Page to Convertible Promissory Note*]

SCHEDULE OF BORROWINGS

The following increases or decreases in this Note have been made:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Date of Increase or Decrease | Amount of<br> decrease in<br> the Total<br> Principal<br> Amount of this<br> Promissory<br> Note | Amount of<br> increase in<br> the Total <br> Principal<br> Amount of this<br> Promissory<br> Note | The Total<br> Principal<br> Amount of this<br> Note following<br> such decrease<br> or increase | Intended <br> Use<br> (if applicable) |
| March 6, 2023 | $190000 | $N/A | $190000 | Funding Extension Deposit |

---