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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
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Checkbox not checked   Rule 13d-1(d)




SCHEDULE 13D/A 0001247602 XXXXXXXX LIVE 2 Common Stock, no par value 01/27/2026 false 0000732026 896712205 TRIO-TECH INTERNATIONAL Block 1008 Toa Payoh North Unit 03-09 Singapore U0 318996 Siew Wai Yong (65) 6265 3300 7 Pandan valley, 16-502 Poinciana Tower Singapore U0 597631 0001247602 N YONG SIEW WAI OO N U0 1470290.00 0.00 1470290.00 0.00 1470290.00 N 16.9 IN (1) Includes 1,260,247 shares of the Issuer's common stock, no par value ("Common Stock") and options to purchase 210,043 shares of Common Stock exercisable within 60 days of the date of this report. (2) Based on 8,701,110 shares of the Common Stock issued and outstanding as of November 1, 2025, based on the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on November 14, 2025. Common Stock, no par value TRIO-TECH INTERNATIONAL Block 1008 Toa Payoh North Unit 03-09 Singapore U0 318996 This Amendment No. 2 ("Amendment") to Schedule 13D amends and supplements the statement on 13D originally filed on June 3, 2010, as amended April 6, 2023, by furnishing the information set forth below. Except as otherwise specified in this Amendment, all previous Items are unchanged. Capitalized terms used herein which are not defined herein have the meanings given to them in the Schedule 13D, as previously amended, filed with the Securities and Exchange Commission ("SEC"). This Schedule 13D is being filed by Siew Wai Yong, an individual. The address of the Reporting Person for this filing is: 7 Pandan valley, 16-502 Poinciana Tower, Singapore 597631. Mr. Yong has served as a director, Chief Executive Officer and President of the Company since 1990 and was elected Chairman of the Board in September 2023. He joined Trio-Tech International Pte. Ltd. in Singapore in 1976 and was appointed as its Managing Director in August 1980. The Reporting Person was not, during the last five years, convicted of a criminal proceeding (excluding traffic violations or similar misdemeanors). The Reporting Person was not, during the last five years, a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. Mr. Yong is a citizen of Singapore. The securities reported herein include shares that were acquired by the Reporting Person through grants of shares by the Issuer from time to time. Of the 1,470,290 shares deemed beneficially owned by Mr. Yong, 210,043 are subject to currently exercisable options. Mr. Yong acquired the remaining shares deemed to be beneficially held by him through the use of personal funds. Mr. Yong holds the shares of Company Common Stock beneficially owned and deemed to be beneficially owned by him for investment. The Reporting Person has no current plans or proposals which relate to or would result in any of the matters described in paragraphs (a) though (j) of Item 4 of Schedule 13D. Mr. Yong may in the future acquire additional shares of Common Stock or other Issuer securities or dispose of some or all of the shares of Common Stock or other securities held by the Reporting Person in open-market transactions or privately negotiated transactions, on such terms and at such times as the Reporting Person may deem advisable subject to applicable securities law and regulations. Mr. Yong may be deemed to beneficially own an aggregate of 1,470,290 shares of the Issuer's common stock, including 210,043 options to purchase shares of Common Stock (the "Options") exercisable within 60 days of the date of this report, representing approximately 16.90% of the Issuer's shares of common stock outstanding. The percentage of ownership of shares set forth in this Schedule 13D is based on 8,701,110 shares of Common Stock outstanding as of November 1, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 14, 2025. Sole power to vote: 1,470,290 Shared power to vote: 0 Sole power to dispose: 1,470,290 Shared power to dispose: 0 On January 27, 2026, Mr. Yong exercised an option to acquire 80,111 shares of common stock at an exercise price of $2.64. None. Not applicable None. Not applicable. YONG SIEW WAI /s/ Siew Wai Yong Siew Wai Yong 01/29/2026