Exhibit 4.3

[FACE OF NOTE]

NO AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY OR PERSON THAT HAS BEEN AN AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY DURING THE IMMEDIATELY PRECEDING THREE MONTHS MAY PURCHASE, OTHERWISE ACQUIRE OR HOLD THIS NOTE OR A BENEFICIAL INTEREST HEREIN.

THIS SECURITY IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

THIS SECURITY AND THE SHARES OF COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

SharonAI Holdings Inc.

4.75% Convertible Senior Notes due 2032

No.: [1][2]

CUSIP: 778920 AC2

Principal Amount $[500,000,000][200,000,000], as revised by the Schedule of Increases and Decreases in the Global Note attached hereto]

SharonAI Holdings Inc., a Delaware corporation (the “Company”), promises to pay to Cede & Co or registered assigns, the principal amount of [FIVE HUNDRED MILLION dollars ($500,000,000)][TWO HUNDRED MILLION dollars ($200,000,000)], as revised by the Schedule of Increases and Decreases in the Global Note attached hereto, on June 15, 2032 (the “Maturity Date”).

Interest Payment Dates: January 1, April 1, July 1 and October 1 of each year, beginning on the first such date that is at least 30 calendar days after the Initial Issue Date, on each Conversion Date (as to that principal amount then being converted), on each Forced Conversion Date (as to that principal amount then being converted) and on the Maturity Date.

Regular Record Dates: December 15, March 15, June 15 and September 15.

Additional provisions of this Security are set forth on the other side of this Note.

IN WITNESS WHEREOF, SharonAI Holdings Inc. has caused this instrument to be signed manually or by facsimile or by another electronic method by one of its duly authorized Officers.

This is one of the Notes referred to in the within-mentioned Indenture.

Dated:

[REVERSE OF NOTE]

SharonAI Holdings Inc.

4.75% Convertible Senior Notes due 2032

This Note is one of a duly authorized issue of securities of the Company (herein called the “Notes”), issued under the Indenture dated as of June 22, 2026 by and among the Company, the Subsidiary Guarantors, U.S. Bank Trust Company, National Association, as trustee, herein called the “Trustee”, reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered.

The Company shall pay all interest due on this Note as set forth in the Indenture on the then outstanding principal amount of this Note.

This Note does not benefit from a sinking fund. This Note is subject to Forced Conversion.

As provided in and subject to the provisions of the Indenture, upon the occurrence of a Fundamental Change, the Holder of this Note will have the right, at such Holder’s option, to require the Company to repurchase this Note, or any portion of this Note such that the principal amount of this Note that is not purchased equals $1,000 or an integral multiple of $1,000 on the Fundamental Change Repurchase Date at a price equal to the Fundamental Change Repurchase Price for such Fundamental Change Repurchase Date.

As provided in and subject to the provisions of the Indenture, the Holder hereof has the right, prior to the Close of Business on the Business Day immediately preceding the Maturity Date, to convert this Note or a portion of this Note such that the principal amount of this Note plus accrued and unpaid interest on such Note converted equals $1,000 or an integral multiple of $1,000 into a number of shares of Common Stock determined in accordance with Article 4 of the Indenture and subject to adjustment as set forth therein.

As provided in and subject to the provisions of the Indenture, the Company will make all payments in respect of the Fundamental Change Repurchase Price for and the principal amount of, this Note to the Holder that surrenders this Note to the Paying Agent to collect such payments in respect of this Note. The Company will pay cash amounts in money of the U.S. that at the time of payment is legal tender for payment of public and private debts.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Notes to be effected under the Indenture at any time by the Company, the Trustee with the consent of the Required Holders (as defined in the Indenture). The Indenture also contains provisions permitting the Required Holders, on behalf of the Holders of all Notes, to waive compliance by the Company with certain provisions of the Indenture and certain past Defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note.

As provided in and subject to the provisions of the Indenture, the Holder of this Note shall not have the right to institute any proceeding with respect to the Indenture, or for the appointment of a receiver or trustee, or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Note, the Holders of not less than 25% in principal amount of the Notes at the time Outstanding shall have made written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered (and if requested, provided) the Trustee indemnity satisfactory to the Trustee, and the Trustee shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity, and shall not have received from the Required Holders a direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the Holder of this Note for the enforcement of any payment of the principal hereof, premium, if any, or interest hereon, the Fundamental Change Repurchase Price with respect to and the amount of cash, the number of shares of Common Stock due upon conversion of this Note or after the respective due dates expressed in the Indenture.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay or deliver, as the case may be, the principal of (including the Fundamental Change Repurchase Price, if applicable), premium, interest on and the number of shares of Common Stock due upon conversion of, this Note at the time, place and rate, and in the coin and currency, herein prescribed.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registrable in the Register, upon surrender of this Note for registration of transfer to the Trustee, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Registrar duly executed by, the Holder hereof or its attorney duly authorized in writing, and thereupon a new Note of this series and of like tenor for the same aggregate principal amount will be issued to the designated transferee.

The Notes are issuable only in registered form without coupons in minimum denominations of $1,000 and integral multiples of $1,000. As provided in the Indenture and subject to certain limitations therein set forth, the Notes are exchangeable for a like aggregate principal amount of Notes and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same.

Subject to the rights of the Holders as of the Regular Record Date to receive interest on the related Interest Payment Date, prior to due presentment of this Note for registration of transfer, the Company, the Trustee, the Agents and any of their respective agents may treat the Person in whose name the Note is registered as the owner hereof for all purposes, whether or not this Note be overdue, and neither the Company, the Trustee, the Agents nor any agents shall be affected by notice to the contrary.

Customary abbreviations may be used in the name of a Holder or an assignee, such as TEN COM (= tenants in common), TEN ENT (= tenants by the entirety), JT TEN (= joint tenants with rights of survivorship and not as tenants in common), CUST (= custodian) and U/G/M/A (= Uniform Gift to Minors Act).

Upon the issuance of any new Note, the Company may require payment by the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including fees and expenses of the Trustee) connected therewith.

All defined terms used in this Note that are defined in the Indenture shall have the meanings assigned to them in the Indenture. If any provision of this Note limits, qualifies or conflicts with a provision of the Indenture, such provision of the Indenture shall control.

ATTACHMENT 1

[FORM OF NOTICE OF CONVERSION]¹

To: SharonAI Holdings Inc.

Cc: U.S. Bank Trust Company, National Association

Global Corporate Trust Services

Mail Stop: EP-MN-WS3C

60 Livingston Avenue

St. Paul, MN 55107

Attention: SharonAI Holdings Inc., Administrator

Re: 4.75% CONVERTIBLE SENIOR NOTES DUE 2032

The undersigned owner of this Note hereby irrevocably exercises the option to convert this Note, or a portion hereof (which is such that the principal amount of the portion of this Note that will not be converted equals $1,000 or an integral multiple of $1,000 in excess thereof) below designated, into a number of shares of Common Stock in accordance with the terms of the Indenture referred to in this Note, and directs that any cash payable and the shares of Common Stock issuable and deliverable upon conversion, together with any Notes representing any unconverted principal amount hereof, be paid and/or issued and/or delivered, as the case may be, to the registered Holder hereof unless a different name is indicated below.

Subject to certain exceptions set forth in the Indenture, if this notice is being delivered on a date after the Close of Business on a Regular Record Date and prior to the Open of Business on the Interest Payment Date corresponding to such Regular Record Date, this notice must be accompanied by payment of an amount equal to the interest payable on such Interest Payment Date on the principal amount of this Note to be converted which such payment shall, in the case of Physical Notes, be made payable to the Company. If any shares of Common Stock are to be issued in the name of a Person other than the undersigned, the undersigned will pay all transfer taxes payable with respect to such issuance and transfer as set forth in the Indenture.

The Holder acknowledges that this Conversion Notice is subject to the restrictions set forth in paragraph 4.01(c)(ii) of the Indenture.

Principal amount to be converted (if less than all) which must be $1,000 or an integral multiple in excess thereof:

$

Your contact information:

Participant Name: _______________________________________________________

Participant Number: _______________________________________________________

Contact Name: _______________________________________________________

Contact Email: _______________________________________________________

Contact Telephone: _______________________________________________________

STOCK CERTIFICATE INFORMATION

The undersigned hereby requests that the stock certificate or certificates issued upon conversion be registered in the name(s) of the persons set forth below.

¹ Note to Form: The Conversion Agent and Company reserve the right to include such additional information in the Form of Conversion Notice in order to facilitate any conversion process

The undersigned acknowledges that the Company is not required to pay any tax which may be payable in respect of any transfer involved in the issue and delivery of shares in any name other than that of the converting holder, and the converting holder is solely responsible for the payment of any such taxes. The undersigned acknowledges that if shares are to be issued in the name of a person other than the converting holder, the converting holder shall pay all transfer taxes payable with respect thereto.

You must check one, and only one, of the following two boxes:

Registered Holder Information:

Name: ___________________________________________________________

SSN or Tax ID No.: _________________________________________________

Street Address: _____________________________________________________

City, State and Zip Code: _____________________________________________

Delivery Instructions:

Unless you direct otherwise below, the above-referenced stock certificate(s) will be delivered to the registered holder at the address specified above. If you wish to provide separate delivery instructions, check the box and complete the information set forth below.

Name: ___________________________________________________________

Street Address: _____________________________________________________

City, State and Zip Code: _____________________________________________

Phone Number: _________________________

CASH PAYMENT INSTRUCTIONS

The undersigned directs that any cash payment owed for fractional shares (and, if applicable, for any accrued but unpaid interest which may be payable under certain limited circumstances) be wired in accordance with the wire instructions set forth below:

Bank: ___________________________________________

Address: _________________________________________

Name of Account: ________________________________

ABA No.: ________________________________________

Account No.: _____________________________________

To avoid the application of “backup withholding” under U.S. federal income tax law, each converting holder (or other payee) should complete, sign, and deliver an Internal Revenue Service (“IRS”) Form W-9 (in the case of a U.S. person or a resident alien) or an IRS Form W-8BEN or other appropriate IRS Form W-8 (in the case of a foreign holder). IRS Forms W-9 and W-8 are available on the IRS’s website at http://www.irs.gov/. Failure to include a properly completed IRS Form W-9 or applicable IRS Form W-8 may result in the application of U.S. backup withholding.

Capitalized terms used but not defined herein shall have the meanings set forth in the Indenture.

Dated: _________

ATTACHMENT 2

[FORM OF ASSIGNMENT AND TRANSFER]

For value received, hereby sell(s), assign(s) and transfer(s) unto___________ (Please insert social security or Taxpayer Identification Number of assignee) the within Note, and hereby irrevocably constitutes and appoints to transfer the said Note on the books of the Company, with full power of substitution in the premises.

In connection with any transfer of the within Note occurring prior to the Resale Restriction Termination Date for such Note, as defined in the Indenture governing such Note, the undersigned confirms that such Note is being transferred:

[TO BE SIGNED BY PURCHASER IF THE SECOND, THIRD OR FOURTH BOX ABOVE IS CHECKED]

[Include if the second, third or fourth box above is checked] [The undersigned (on the immediately following signature line) represents and warrants that it is not, and has not been for the immediately preceding three months, an “affiliate” (as defined in Rule 144 under the Securities Act of 1933, as amended) of SharonAI Holdings Inc.]

[Include if the third box above is checked] [The undersigned (on the immediately following signature line) represents and warrants that it is purchasing this Note for its own account or an account with respect to which it exercises sole investment discretion and that it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act and is aware that the sale to it is being made in reliance on Rule 144A and acknowledges that it has received such information regarding the Company as the undersigned has requested pursuant to Rule 144A or has determined not to request such information and that it is aware that the transferor is relying upon the undersigned’s foregoing representations in order to claim the exemption from registration provided by Rule 144A.]

[Date: _____________________________ Signed: _____________________________ ]

Unless one of the above boxes is checked, the Trustee and Registrar will refuse to register any of the Notes evidenced by this certificate in the name of any Person other than the registered Holder thereof; provided that, if the fourth box is checked, the Company may require, prior to registering any such transfer of the Notes, in its sole discretion, such legal opinions, certifications and other information as the Company may reasonably request to confirm that such transfer is being made pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act.

If none of the foregoing boxes is checked, the Trustee or Registrar shall not be obligated to register this Note in the name of any Person other than the Holder hereof unless and until the conditions to any such transfer of registration set forth herein and in Section 2.11 of the Indenture shall have been satisfied.

Dated:

_______

Signature(s)

(Sign exactly as your name appears on the other side of this Note)

________

Signature Guarantee

(Signature(s) must be guaranteed by an institution which is a member of one of the following recognized signature Guarantee Programs: (i) The Notes Transfer Agent Medallion Program (STAMP); (ii) The New York Stock Exchange Medallion Program (MNSP); (iii) The Stock Exchange Medallion Program (SEMP) or (iv) another guarantee program acceptable to the Trustee)

ATTACHMENT 3

[Insert for Global Note]

SCHEDULE OF INCREASES AND DECREASES IN THE GLOBAL NOTE

Initial Principal Amount of Global Note: [$500,000,000][200,000,000]

ATTACHMENT 4

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE]

To: Paying Agent

The undersigned registered owner of this Note hereby acknowledges receipt of a notice from SharonAI Holdings Inc. (the “Company”) as to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Repurchase Date and requests and instructs the Company to pay to the registered holder hereof in accordance with Section 13.01 of the Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion thereof (that is $1,000 principal amount or an integral multiple of $1,000 in excess thereof) below designated, and (2) if such Fundamental Change Repurchase Date does not fall during the period after a Regular Record Date and on or prior to the corresponding Interest Payment Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental Change Repurchase Date.

In the case of Physical Notes, the certificate numbers of the Notes to be repurchased are as set forth below: __________________________

NOTICE: The above signature(s) of the Holder(s) hereof must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever.