Sec Form 3 Filing - Jia Dengyao @ Lianhe Sowell International Group Ltd - 2026-03-18

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Jia Dengyao 2. Issuer Name and Ticker or Trading Symbol Lianhe Sowell International Group Ltd [ LHSW] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O/ 15TH FLOOR, SANNUO SMART BUILDING, NO. 3388 BINHAI AVE, NANSHAN DISTRICT 3. Date of Earliest Transaction (MM/DD/YY) 03/18/2026 (Street) SHENZHEN518000 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Ordinary Shares ( 1 ) 15,000,000 I By Lianhe Holding Group Limited ( 2 ) Class A Ordinary Shares ( 1 ) 4,180,000 I By Patton Holding Group Limited ( 3 ) Class B Ordinary Shares ( 1 ) 600,000 I By Patton Holding Group Limited ( 3 ) Class A Ordinary Shares ( 1 ) 15,035,000 I By AIC with Lianyue Holding Limited ( 4 ) Class A Ordinary Shares ( 1 ) 400,000 I By AIC with Lianyue Holding Limited ( 4 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Jia Dengyao C/O/ 15TH FLOOR, SANNUO SMART BUILDING NO. 3388 BINHAI AVE, NANSHAN DISTRICT SHENZHEN518000 X Signatures /s/ Dengyao Jia 03/18/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Class B Ordinary Shares are convertible into Class A Ordinary Shares at holders' option at any time on a one-to-one basis. Class A Ordinary Shares are not convertible into Class B Ordinary Shares under any circumstance. Each Class A Ordinary Share entitles to 1 vote and each Class B Ordinary Share entitles to 100 votes. ( 2 )Lianhe Holding Group Limited is a limited liability company incorporated under the British Virgin Islands laws and wholly owned by Hainan Lianhe Enterprise Management Group Co., Ltd., a limited liability company incorporated under the laws of the PRC. Hainan Lianhe Enterprise Management Group Co., Ltd. is owned by Dengyao Jia (90%) and Hainan Younian Enterprise Management Co., Ltd. (10%), a limited liability company incorporated under the laws of the PRC. As the controlling shareholder and sole director of Lianhe Holding Group Limited, Dengyao Jia is deemed to have the voting and dispositive power with respect to the shares owned by this entity. The address of Lianhe Holding Group Limited is Sea Meadow House, (P.O. Box 116), Road Town, Tortola, British Virgin Islands. ( 3 )Patton Holding Group Limited, a British Virgin Islands company ("Patton Holding"), which is wholly owned by Dengyao Jia, resulting in Dengyao Jia being deemed to have voting, dispositive or investment powers over Patton Holding. ( 4 )Pursuant to an Acting-in-Concert Confirmation and Undertaking Agreement (the "AIC Agreement") entered into between Patton Holding and Lianyue Holding Limited on September 9, 2025, Patton Holding may be deemed to share voting power with respect to the Issuer's shares held by Lianyue Holding Limited.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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