<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
<!--Generated by ThunderDome XBRL - 01:29PM UTC 2026-09-24--><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:country="http://xbrl.sec.gov/country/2026" xmlns:currency="http://xbrl.sec.gov/currency/2026" xmlns:cyd="http://xbrl.sec.gov/cyd/2026" xmlns:dei="http://xbrl.sec.gov/dei/2026" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:ecd="http://xbrl.sec.gov/ecd/2026" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:exch="http://xbrl.sec.gov/exch/2026" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:naics="http://xbrl.sec.gov/naics/2026" xmlns:sic="http://xbrl.sec.gov/sic/2026" xmlns:srt="http://fasb.org/srt/2026" xmlns:srt-types="http://fasb.org/srt-types/2026" xmlns:stpr="http://xbrl.sec.gov/stpr/2026" xmlns:trt="http://www.triotech.com/20260630" xmlns:us-gaap="http://fasb.org/us-gaap/2026" xmlns:us-types="http://fasb.org/us-types/2026" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.triotech.com/20260630">
  <xsd:import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/exch/2026" schemaLocation="https://xbrl.sec.gov/exch/2026/exch-2026.xsd"/>
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/currency/2026" schemaLocation="https://xbrl.sec.gov/currency/2026/currency-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/naics/2026" schemaLocation="https://xbrl.sec.gov/naics/2026/naics-2026.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xsd:import namespace="http://xbrl.org/2020/extensible-enumerations-2.0" schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2026" schemaLocation="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/cyd-af-sub/2026" schemaLocation="https://xbrl.sec.gov/cyd/2026/cyd-af-sub-2026.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/sic/2026" schemaLocation="https://xbrl.sec.gov/sic/2026/sic-2026.xsd"/>
  <xsd:import namespace="http://fasb.org/us-types/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
  <xsd:import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd"/>
  <xsd:import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="trt-20260630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="trt-20260630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="trt-20260630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="trt-20260630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="statement-document-and-entity-information" roleURI="http://www.triotech.com/20260630/role/statement-document-and-entity-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-balance-sheets" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-balance-sheets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">001 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-balance-sheets-parentheticals" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-balance-sheets-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">002 - Statement - Consolidated Balance Sheets (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-operations-and-comprehensive-income" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-statements-of-operations-and-comprehensive-income">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">003 - Statement - Consolidated Statements of Operations and Comprehensive Income</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-comprehensive-income" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-statements-of-comprehensive-income">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">004 - Statement - Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-shareholders-equity" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-statements-of-shareholders-equity">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">005 - Statement - Consolidated Statements of Shareholders' Equity</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-cash-flows" roleURI="http://www.triotech.com/20260630/role/statement-consolidated-statements-of-cash-flows">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">006 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies" roleURI="http://www.triotech.com/20260630/role/statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995554 - Disclosure - Note 1 - Basis of Presentation and Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-new-accounting-pronouncements-" roleURI="http://www.triotech.com/20260630/role/statement-note-2-new-accounting-pronouncements-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995555 - Disclosure - Note 2 - New Accounting Pronouncements</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-term-deposits-" roleURI="http://www.triotech.com/20260630/role/statement-note-3-term-deposits-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995556 - Disclosure - Note 3 - Term Deposits</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-shortterm-investment" roleURI="http://www.triotech.com/20260630/role/statement-note-4-shortterm-investment">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995557 - Disclosure - Note 4 - Short-term Investment</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-trade-account-receivables-and-allowance-for-credit-losses" roleURI="http://www.triotech.com/20260630/role/statement-note-5-trade-account-receivables-and-allowance-for-credit-losses">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995558 - Disclosure - Note 5 - Trade Account Receivables and Allowance for Credit Losses</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-loans-receivable-from-property-development-projects-" roleURI="http://www.triotech.com/20260630/role/statement-note-6-loans-receivable-from-property-development-projects-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995559 - Disclosure - Note 6 - Loans Receivable From Property Development Projects</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-inventories-" roleURI="http://www.triotech.com/20260630/role/statement-note-7-inventories-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995560 - Disclosure - Note 7 - Inventories</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-investment-properties" roleURI="http://www.triotech.com/20260630/role/statement-note-8-investment-properties">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995561 - Disclosure - Note 8 - Investment Properties</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-property-plant-and-equipment" roleURI="http://www.triotech.com/20260630/role/statement-note-9-property-plant-and-equipment">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995562 - Disclosure - Note 9 - Property, Plant and Equipment</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-other-assets-" roleURI="http://www.triotech.com/20260630/role/statement-note-10-other-assets-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995563 - Disclosure - Note 10 - Other Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-lines-of-credit" roleURI="http://www.triotech.com/20260630/role/statement-note-11-lines-of-credit">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995564 - Disclosure - Note 11 - Lines of Credit</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-accrued-expense" roleURI="http://www.triotech.com/20260630/role/statement-note-12-accrued-expense">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995565 - Disclosure - Note 12 - Accrued Expense</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-assurance-warranty-accrual" roleURI="http://www.triotech.com/20260630/role/statement-note-13-assurance-warranty-accrual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995566 - Disclosure - Note 13 - Assurance Warranty Accrual</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-bank-loans-payable-" roleURI="http://www.triotech.com/20260630/role/statement-note-14-bank-loans-payable-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995567 - Disclosure - Note 14 - Bank Loans Payable</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-other-noncurrent-liabilities" roleURI="http://www.triotech.com/20260630/role/statement-note-15-other-noncurrent-liabilities">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995568 - Disclosure - Note 15 - Other Non-current Liabilities</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-commitments-and-contingencies-" roleURI="http://www.triotech.com/20260630/role/statement-note-16-commitments-and-contingencies-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995569 - Disclosure - Note 16 - Commitments and Contingencies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-17-fair-value-of-financial-instruments" roleURI="http://www.triotech.com/20260630/role/statement-note-17-fair-value-of-financial-instruments">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995570 - Disclosure - Note 17 - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-concentration-of-customers" roleURI="http://www.triotech.com/20260630/role/statement-note-18-concentration-of-customers">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995571 - Disclosure - Note 18 - Concentration of Customers</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-business-segments-" roleURI="http://www.triotech.com/20260630/role/statement-note-19-business-segments-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995572 - Disclosure - Note 19 - Business Segments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-20-other-income-expense" roleURI="http://www.triotech.com/20260630/role/statement-note-20-other-income-expense">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995573 - Disclosure - Note 20 - Other Income (Expense)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-21-government-grants" roleURI="http://www.triotech.com/20260630/role/statement-note-21-government-grants">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995574 - Disclosure - Note 21 - Government Grants</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995575 - Disclosure - Note 22 - Income Taxes</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-23-revenue" roleURI="http://www.triotech.com/20260630/role/statement-note-23-revenue">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995576 - Disclosure - Note 23 - Revenue</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-24-earnings-per-share-" roleURI="http://www.triotech.com/20260630/role/statement-note-24-earnings-per-share-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995577 - Disclosure - Note 24 - Earnings Per Share</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995578 - Disclosure - Note 25 - Stock Options</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995579 - Disclosure - Note 26 - Leases</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-27-noncontrolling-interest" roleURI="http://www.triotech.com/20260630/role/statement-note-27-noncontrolling-interest">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995580 - Disclosure - Note 27 - Non-controlling Interest</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-28-stock-repurchase-program" roleURI="http://www.triotech.com/20260630/role/statement-note-28-stock-repurchase-program">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995581 - Disclosure - Note 28 - Stock Repurchase Program</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-29-subsequent-events" roleURI="http://www.triotech.com/20260630/role/statement-note-29-subsequent-events">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995582 - Disclosure - Note 29 - Subsequent Events</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-significant-accounting-policies-policies" roleURI="http://www.triotech.com/20260630/role/statement-significant-accounting-policies-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995583 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995584 - Disclosure - Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-term-deposits-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-3-term-deposits-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995585 - Disclosure - Note 3 - Term Deposits (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995586 - Disclosure - Note 5 - Trade Account Receivables and Allowance for Credit Losses (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-loans-receivable-from-property-development-projects-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-6-loans-receivable-from-property-development-projects-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995587 - Disclosure - Note 6 - Loans Receivable From Property Development Projects (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-inventories-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-7-inventories-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995588 - Disclosure - Note 7 - Inventories (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-investment-properties-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-8-investment-properties-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995589 - Disclosure - Note 8 - Investment Properties (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-property-plant-and-equipment-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-9-property-plant-and-equipment-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995590 - Disclosure - Note 9 - Property, Plant and Equipment (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-other-assets-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-10-other-assets-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995591 - Disclosure - Note 10 - Other Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-lines-of-credit-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-11-lines-of-credit-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995592 - Disclosure - Note 11 - Lines of Credit (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-accrued-expense-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-12-accrued-expense-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995593 - Disclosure - Note 12 - Accrued Expense (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-assurance-warranty-accrual-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-13-assurance-warranty-accrual-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995594 - Disclosure - Note 13 - Assurance Warranty Accrual (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-bank-loans-payable-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-14-bank-loans-payable-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995595 - Disclosure - Note 14 - Bank Loans Payable (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-other-noncurrent-liabilities-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-15-other-noncurrent-liabilities-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995596 - Disclosure - Note 15 - Other Non-current Liabilities (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-concentration-of-customers-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-18-concentration-of-customers-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995597 - Disclosure - Note 18 - Concentration of Customers (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-business-segments-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-19-business-segments-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995598 - Disclosure - Note 19 - Business Segments (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-20-other-income-expense-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-20-other-income-expense-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995599 - Disclosure - Note 20 - Other Income (Expense) (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-21-government-grants-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-21-government-grants-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995600 - Disclosure - Note 21 - Government Grants (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995601 - Disclosure - Note 22 - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-23-revenue-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-23-revenue-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995602 - Disclosure - Note 23 - Revenue (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-24-earnings-per-share-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-24-earnings-per-share-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995603 - Disclosure - Note 24 - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995604 - Disclosure - Note 25 - Stock Options (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995605 - Disclosure - Note 26 - Leases (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-27-noncontrolling-interest-tables" roleURI="http://www.triotech.com/20260630/role/statement-note-27-noncontrolling-interest-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995606 - Disclosure - Note 27 - Non-controlling Interest (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995607 - Disclosure - Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-ownership-details" roleURI="http://www.triotech.com/20260630/role/statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-ownership-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995608 - Disclosure - Note 1 - Basis of Presentation and Summary of Significant Accounting Policies - Ownership (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-term-deposits-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-3-term-deposits-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995609 - Disclosure - Note 3 - Term Deposits (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-term-deposits-term-deposits-details" roleURI="http://www.triotech.com/20260630/role/statement-note-3-term-deposits-term-deposits-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995610 - Disclosure - Note 3 - Term Deposits - Term Deposits (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-shortterm-investment-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-4-shortterm-investment-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995611 - Disclosure - Note 4 - Short-term Investment (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-allowance-for-doubtful-accounts-details" roleURI="http://www.triotech.com/20260630/role/statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-allowance-for-doubtful-accounts-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995612 - Disclosure - Note 5 - Trade Account Receivables and Allowance for Credit Losses - Allowance for Doubtful Accounts (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-loans-receivable-from-property-development-projects-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-6-loans-receivable-from-property-development-projects-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995613 - Disclosure - Note 6 - Loans Receivable From Property Development Projects (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-loans-receivable-from-property-development-projects-loans-receivable-details" roleURI="http://www.triotech.com/20260630/role/statement-note-6-loans-receivable-from-property-development-projects-loans-receivable-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995614 - Disclosure - Note 6 - Loans Receivable From Property Development Projects - Loans Receivable (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-inventories-inventories-details" roleURI="http://www.triotech.com/20260630/role/statement-note-7-inventories-inventories-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995615 - Disclosure - Note 7 - Inventories - Inventories (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-inventories-changes-in-provision-for-obsolete-inventories-details" roleURI="http://www.triotech.com/20260630/role/statement-note-7-inventories-changes-in-provision-for-obsolete-inventories-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995616 - Disclosure - Note 7 - Inventories - Changes in Provision for Obsolete Inventories (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-investment-properties-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-8-investment-properties-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995617 - Disclosure - Note 8 - Investment Properties (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-investment-properties-investment-properties-details" roleURI="http://www.triotech.com/20260630/role/statement-note-8-investment-properties-investment-properties-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995618 - Disclosure - Note 8 - Investment Properties - Investment Properties (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-property-plant-and-equipment-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-9-property-plant-and-equipment-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995619 - Disclosure - Note 9 - Property, Plant and Equipment (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" roleURI="http://www.triotech.com/20260630/role/statement-note-9-property-plant-and-equipment-summary-of-property-plant-and-equipment-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995620 - Disclosure - Note 9 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-other-assets-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-10-other-assets-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995621 - Disclosure - Note 10 - Other Assets (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-other-assets-other-assets-details" roleURI="http://www.triotech.com/20260630/role/statement-note-10-other-assets-other-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995622 - Disclosure - Note 10 - Other Assets - Other Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-lines-of-credit-line-of-credit-details" roleURI="http://www.triotech.com/20260630/role/statement-note-11-lines-of-credit-line-of-credit-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995623 - Disclosure - Note 11 - Lines Of Credit- Line of Credit (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-accrued-expense-accrued-expenses-details" roleURI="http://www.triotech.com/20260630/role/statement-note-12-accrued-expense-accrued-expenses-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995624 - Disclosure - Note 12 - Accrued Expense - Accrued Expenses (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-assurance-warranty-accrual-warrant-liability-details" roleURI="http://www.triotech.com/20260630/role/statement-note-13-assurance-warranty-accrual-warrant-liability-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995625 - Disclosure - Note 13 - Assurance Warranty Accrual - Warrant Liability (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-bank-loans-payable-bank-loans-details" roleURI="http://www.triotech.com/20260630/role/statement-note-14-bank-loans-payable-bank-loans-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995626 - Disclosure - Note 14 - Bank Loans Payable - Bank Loans (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-bank-loans-payable-bank-loans-details-parentheticals" roleURI="http://www.triotech.com/20260630/role/statement-note-14-bank-loans-payable-bank-loans-details-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995627 - Disclosure - Note 14 - Bank Loans Payable - Bank Loans (Details) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-bank-loans-payable-future-minimum-payments-details" roleURI="http://www.triotech.com/20260630/role/statement-note-14-bank-loans-payable-future-minimum-payments-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995628 - Disclosure - Note 14 - Bank Loans Payable - Future Minimum Payments (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-other-noncurrent-liabilities-other-noncurrent-liabilities-details" roleURI="http://www.triotech.com/20260630/role/statement-note-15-other-noncurrent-liabilities-other-noncurrent-liabilities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995629 - Disclosure - Note 15 - Other Non-current Liabilities - Other Non-current Liabilities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-commitments-and-contingencies-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-16-commitments-and-contingencies-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995630 - Disclosure - Note 16 - Commitments and Contingencies (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-concentration-of-customers-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-18-concentration-of-customers-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995631 - Disclosure - Note 18 - Concentration of Customers (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-concentration-of-customers-revenue-and-trade-accounts-receivables-details" roleURI="http://www.triotech.com/20260630/role/statement-note-18-concentration-of-customers-revenue-and-trade-accounts-receivables-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995632 - Disclosure - Note 18 - Concentration of Customers - Revenue and Trade Accounts Receivables (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-business-segments-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-19-business-segments-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995633 - Disclosure - Note 19 - Business Segments (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-business-segments-business-segment-information-details" roleURI="http://www.triotech.com/20260630/role/statement-note-19-business-segments-business-segment-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995634 - Disclosure - Note 19 - Business Segments - Business Segment Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-20-other-income-expense-other-income-details" roleURI="http://www.triotech.com/20260630/role/statement-note-20-other-income-expense-other-income-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995635 - Disclosure - Note 20 - Other Income (Expense) - Other Income (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-21-government-grants-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-21-government-grants-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995636 - Disclosure - Note 21 - Government Grants (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-21-government-grants-grants-received-details" roleURI="http://www.triotech.com/20260630/role/statement-note-21-government-grants-grants-received-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995637 - Disclosure - Note 21 - Government Grants - Grants Received (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995638 - Disclosure - Note 22 - Income Taxes (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-schedule-of-loss-income-before-provision-for-income-taxes-details" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-schedule-of-loss-income-before-provision-for-income-taxes-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995639 - Disclosure - Note 22 - Income Taxes - Schedule of (Loss) Income Before Provision for Income Taxes (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995640 - Disclosure - Note 22 - Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995641 - Disclosure - Note 22 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details-parentheticals" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995642 - Disclosure - Note 22 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-summary-of-income-taxes-paid-details" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-summary-of-income-taxes-paid-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995643 - Disclosure - Note 22 - Income Taxes - Summary of Income Taxes Paid (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-22-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" roleURI="http://www.triotech.com/20260630/role/statement-note-22-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995644 - Disclosure - Note 22 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-23-revenue-1-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-23-revenue-1-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995645 - Disclosure - Note 23 - Revenue 1 (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-23-revenue-2-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-23-revenue-2-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995646 - Disclosure - Note 23 - Revenue 2 (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-23-revenue-revenue-by-product-and-service-details" roleURI="http://www.triotech.com/20260630/role/statement-note-23-revenue-revenue-by-product-and-service-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995647 - Disclosure - Note 23 - Revenue - Revenue by Product and Service (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-24-earnings-per-share-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-24-earnings-per-share-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995648 - Disclosure - Note 24 - Earnings Per Share (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-24-earnings-per-share-computation-of-basic-and-diluted-eps-details" roleURI="http://www.triotech.com/20260630/role/statement-note-24-earnings-per-share-computation-of-basic-and-diluted-eps-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995649 - Disclosure - Note 24 - Earnings Per Share - Computation of Basic and Diluted EPS (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995650 - Disclosure - Note 25 - Stock Options (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options-summary-of-2017-employee-plan-options-activities-details" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options-summary-of-2017-employee-plan-options-activities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995651 - Disclosure - Note 25 - Stock Options - Summary of 2017 Employee Plan Options Activities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options-summary-of-nonvested-employee-stock-details" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options-summary-of-nonvested-employee-stock-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995652 - Disclosure - Note 25 - Stock Options - Summary of Nonvested Employee Stock (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-25-stock-options-summary-of-2017-directors-plan-options-activities-details" roleURI="http://www.triotech.com/20260630/role/statement-note-25-stock-options-summary-of-2017-directors-plan-options-activities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995653 - Disclosure - Note 25 - Stock Options - Summary of 2017 Directors Plan Options Activities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995654 - Disclosure - Note 26 - Leases (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-future-minimum-rental-income-details" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-future-minimum-rental-income-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995655 - Disclosure - Note 26 - Leases - Future Minimum Rental Income (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-supplement-balance-sheet-information-details" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-supplement-balance-sheet-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995656 - Disclosure - Note 26 - Leases - Supplement Balance Sheet Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-other-information-details" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-other-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995657 - Disclosure - Note 26 - Leases - Other Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-26-leases-future-minimum-lease-payments-details" roleURI="http://www.triotech.com/20260630/role/statement-note-26-leases-future-minimum-lease-payments-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995658 - Disclosure - Note 26 - Leases - Future Minimum Lease Payments (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-27-noncontrolling-interest-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-27-noncontrolling-interest-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995659 - Disclosure - Note 27 - Non-controlling Interest (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-27-noncontrolling-interest-summary-of-equity-attributable-to-noncontrolling-interest-details" roleURI="http://www.triotech.com/20260630/role/statement-note-27-noncontrolling-interest-summary-of-equity-attributable-to-noncontrolling-interest-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995660 - Disclosure - Note 27 - Non-controlling Interest - Summary of Equity Attributable to Non-controlling Interest (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-28-stock-repurchase-program-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-28-stock-repurchase-program-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995661 - Disclosure - Note 28 - Stock Repurchase Program (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-29-subsequent-events-details-textual" roleURI="http://www.triotech.com/20260630/role/statement-note-29-subsequent-events-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995662 - Disclosure - Note 29 - Subsequent Events (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="trt_AccruedCurrencyTranslationEffect" name="AccruedCurrencyTranslationEffect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccruedInterestExpenseNetOfInterestIncome" name="AccruedInterestExpenseNetOfInterestIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_AccruedPurchaseOfMaterialsAndFixedAssets" name="AccruedPurchaseOfMaterialsAndFixedAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccruedSalesRebate" name="AccruedSalesRebate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccruedSalesTax" name="AccruedSalesTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccruedSubsidiaryShareAcquisitionExpense" name="AccruedSubsidiaryShareAcquisitionExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccruedTravelingExpenses" name="AccruedTravelingExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_AccumulatedDepreciationOnRentalProperty" name="AccumulatedDepreciationOnRentalProperty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_AllOtherForeignTaxAuthoritiesMember" name="AllOtherForeignTaxAuthoritiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_AssetsSubjectToAFinancialArrangementMember" name="AssetsSubjectToAFinancialArrangementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_CurrencyTranslationEffect" name="CurrencyTranslationEffect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_CurrencyTranslationEffect1" name="CurrencyTranslationEffect1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectLongTermBankLoan" name="CurrencyTranslationEffectLongTermBankLoan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectOnAccountsReceivable" name="CurrencyTranslationEffectOnAccountsReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_CurrencyTranslationEffectOnShorttermPortionOfBankLoan" name="CurrencyTranslationEffectOnShorttermPortionOfBankLoan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectOtherAssets" name="CurrencyTranslationEffectOtherAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectRestrictedTermDepositsCurrent" name="CurrencyTranslationEffectRestrictedTermDepositsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectRestrictedTermDepositsNoncurrent" name="CurrencyTranslationEffectRestrictedTermDepositsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_CurrencyTranslationEffectShortTermDeposit" name="CurrencyTranslationEffectShortTermDeposit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_CustomerAMember" name="CustomerAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_CustomerBMember" name="CustomerBMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_CustomerCMember" name="CustomerCMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_CustomsBondArrangementMember" name="CustomsBondArrangementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_DeferredTaxAssetsNetLiabilitiesBeforeValuationAllowance" name="DeferredTaxAssetsNetLiabilitiesBeforeValuationAllowance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_DeferredTaxLiabilitiesRightofuseAssets" name="DeferredTaxLiabilitiesRightofuseAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_DepositAssetsRestrictedCurrent" name="DepositAssetsRestrictedCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_DepositAssetsRestrictedNoncurrent" name="DepositAssetsRestrictedNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_DepositsAssetsRestrictedCurrentNet" name="DepositsAssetsRestrictedCurrentNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_DepositsAssetsRestrictedTermDepositsNoncurrentNet" name="DepositsAssetsRestrictedTermDepositsNoncurrentNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_DirectorPlan2017Member" name="DirectorPlan2017Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_DownPaymentForPurchaseOfInvestmentProperties" name="DownPaymentForPurchaseOfInvestmentProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_EffectOfExchangeRateOnOtherIncome" name="EffectOfExchangeRateOnOtherIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleExpenseOtherAmount" name="EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleExpenseOtherAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleExpenseOtherPercent" name="EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleExpenseOtherPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationPenaltiesAmount" name="EffectiveIncomeTaxRateReconciliationPenaltiesAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationPenaltiesPercent" name="EffectiveIncomeTaxRateReconciliationPenaltiesPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationPermanentItemsAndTaxCreditsPercent" name="EffectiveIncomeTaxRateReconciliationPermanentItemsAndTaxCreditsPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationTaxCreditsAmount" name="EffectiveIncomeTaxRateReconciliationTaxCreditsAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_EffectiveIncomeTaxRateReconciliationTaxCreditsPercent" name="EffectiveIncomeTaxRateReconciliationTaxCreditsPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_EmployeeStockOptionPlan2017Member" name="EmployeeStockOptionPlan2017Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_EquipmentUnderFinanceLeaseMember" name="EquipmentUnderFinanceLeaseMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_ExpressTestCorporationDormantMember" name="ExpressTestCorporationDormantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_FinanceLeaseCost" name="FinanceLeaseCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_FinanceLeaseInterestPaymentRecoveryOnLiability" name="FinanceLeaseInterestPaymentRecoveryOnLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_FinanceLeasePrincipalPaymentsRecovery" name="FinanceLeasePrincipalPaymentsRecovery" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_FinancialAssistanceReceivedFromTheChineseGovernmentMember" name="FinancialAssistanceReceivedFromTheChineseGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_FinancialAssistanceReceivedFromTheSingaporeGovernmentMember" name="FinancialAssistanceReceivedFromTheSingaporeGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_FinancialAssistanceReceivedFromTheUnitedStatesGovernmentMember" name="FinancialAssistanceReceivedFromTheUnitedStatesGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_FinancingReceivableAllowanceForCreditLossesCurrent" name="FinancingReceivableAllowanceForCreditLossesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_FuliMember" name="FuliMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_GainLossOnSalesOfPropertyPlantEquipment" name="GainLossOnSalesOfPropertyPlantEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_GovernmentGrantsTableTextBlock" name="GovernmentGrantsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_IncomeTaxAuthorityInMalaysiaMember" name="IncomeTaxAuthorityInMalaysiaMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_IncomeTaxAuthorityInThailandMember" name="IncomeTaxAuthorityInThailandMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_IndustrialElectronicsMember" name="IndustrialElectronicsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_InventoryCurrencyTranslationEffect" name="InventoryCurrencyTranslationEffect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_InventoryRecallExpenseCredit" name="InventoryRecallExpenseCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_InvestmentPropertyInChinaTextBlock" name="InvestmentPropertyInChinaTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_JiangHuaiMember" name="JiangHuaiMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_KtsIncorporatedDbaUniversalSystemsDormantMember" name="KtsIncorporatedDbaUniversalSystemsDormantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LegalAndAudit" name="LegalAndAudit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_LesseeAndLessorLeasesTextBlock" name="LesseeAndLessorLeasesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LessorAssetUnderOperatingLeaseTerm" name="LessorAssetUnderOperatingLeaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LineOfCreditTextBlock" name="LineOfCreditTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LiquidityPolicyTextBlock" name="LiquidityPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LoanReceivableFromPropertyDevelopmentProjectsTextBlock" name="LoanReceivableFromPropertyDevelopmentProjectsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_LoansPayableToBankCurrentGross" name="LoansPayableToBankCurrentGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_LongTermLoansFromBankGross" name="LongTermLoansFromBankGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_LossAttributableToTriotechInternationalCommonShareholdersFromDiscontinuedOperationsNetOfTax" name="LossAttributableToTriotechInternationalCommonShareholdersFromDiscontinuedOperationsNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_MaoYeMember" name="MaoYeMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_MonthlyLeaseRevenueAmount" name="MonthlyLeaseRevenueAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_NetIncomeLossAvailableToCommonStockholdersContinuingAndDiscontinued" name="NetIncomeLossAvailableToCommonStockholdersContinuingAndDiscontinued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_NoncontrollingInterestDecreaseFromRedemptionsOrPurchaseOfInterestsAdjustmentsToRetainedEarnings" name="NoncontrollingInterestDecreaseFromRedemptionsOrPurchaseOfInterestsAdjustmentsToRetainedEarnings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesPayableToBank3Member" name="NotesPayableToBank3Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesPayableToBank4Member" name="NotesPayableToBank4Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesPayableToBanks1Member" name="NotesPayableToBanks1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesPayableToBanks2Member" name="NotesPayableToBanks2Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_NumberOfMajorCustomers" name="NumberOfMajorCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_OfficeLeaseAgreementAndTestFacilityArrangementsWithMalaysiaSubsidiaryMember" name="OfficeLeaseAgreementAndTestFacilityArrangementsWithMalaysiaSubsidiaryMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_OperatingAndFinanceLeasesOfLesseeDisclosureTableTextBlock" name="OperatingAndFinanceLeasesOfLesseeDisclosureTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_OperatingAndFinanceLeasesOfLesseeOtherDisclosureTableTextBlock" name="OperatingAndFinanceLeasesOfLesseeOtherDisclosureTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_OperatingLeasePaymentsRecovery" name="OperatingLeasePaymentsRecovery" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_OtherMiscellaneousNonoperatingIncomeExpense" name="OtherMiscellaneousNonoperatingIncomeExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_OtherRentalIncome" name="OtherRentalIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_OwnershipPercentage" name="OwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="trt_OwnershipPercentageAcquired" name="OwnershipPercentageAcquired" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_PaymentOfInterestPortionOfFinanceLease" name="PaymentOfInterestPortionOfFinanceLease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_PrestalEnterpriseSdnBhdMember" name="PrestalEnterpriseSdnBhdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_ProductWarrantyExpenseRecoveryNet" name="ProductWarrantyExpenseRecoveryNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_PropertyPlantAndEquipmentBeforeTranslationEffectAndAccumulatedDepreciationDepletionAndAmortization" name="PropertyPlantAndEquipmentBeforeTranslationEffectAndAccumulatedDepreciationDepletionAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_PropertyPlantAndEquipmentNetBeforeCurrencyTranslation" name="PropertyPlantAndEquipmentNetBeforeCurrencyTranslation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_ProvisionForIncomeTax" name="ProvisionForIncomeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_ProvisionForReinstatement" name="ProvisionForReinstatement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_ProvisionForReinstatementLiability" name="ProvisionForReinstatementLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="trt_ProvisionOfImpairmentLossOtherAssetsInvestmentProperties" name="ProvisionOfImpairmentLossOtherAssetsInvestmentProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="trt_PtShiIndonesiaDormantMember" name="PtShiIndonesiaDormantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_ReconciliationOfEquityAttributableToNoncontrollingInterestTableTextBlock" name="ReconciliationOfEquityAttributableToNoncontrollingInterestTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_RepaymentOfOperatingLease" name="RepaymentOfOperatingLease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="trt_RestrictedTermDepositsCurrent" name="RestrictedTermDepositsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_RestrictedTermDepositsPolicyTextBlock" name="RestrictedTermDepositsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_RetainedEarningsPolicyTextBlock" name="RetainedEarningsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_SalesTaxPolicyTextBlock" name="SalesTaxPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndFinanceLeasesTableTextBlock" name="ScheduleOfFutureMinimumRentalPaymentsForOperatingAndFinanceLeasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_SemiconductorBackendSolutionsMember" name="SemiconductorBackendSolutionsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="trt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodWeightedaverageRemainingContractualTerm" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodWeightedaverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_SharebasedCompensationArrangementBySharebasedPaymentAwardPercentageOfTotalInstallmentAward" name="SharebasedCompensationArrangementBySharebasedPaymentAwardPercentageOfTotalInstallmentAward" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_SharebasedCompensationArrangementBySharebasedPaymentAwardQuarterlyInstallments" name="SharebasedCompensationArrangementBySharebasedPaymentAwardQuarterlyInstallments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_ShiInternationalPteLtdDormantMember" name="ShiInternationalPteLtdDormantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_ShortTermDeposit" name="ShortTermDeposit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="trt_SummaryOfIncomeTaxPaidTableTextBlock" name="SummaryOfIncomeTaxPaidTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_TermDepositsPolicyTextBlock" name="TermDepositsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_TermDepositsTableTextBlock" name="TermDepositsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_TermDepositsTextBlock" name="TermDepositsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_TradeAccountsReceivableCreditTerm" name="TradeAccountsReceivableCreditTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TrioTechInternationalPteLtdMember" name="TrioTechInternationalPteLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TrioTechReliabilityServicesDormantMember" name="TrioTechReliabilityServicesDormantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TrioTechSipCoLtdMember" name="TrioTechSipCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechBangkokCoLtdMember" name="TriotechBangkokCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechChongqingCoLtdMember" name="TriotechChongqingCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechInternationalThailandCoLtdMember" name="TriotechInternationalThailandCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechJiangsuCoLtdMember" name="TriotechJiangsuCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechMalaysiaSdnBhdMember" name="TriotechMalaysiaSdnBhdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_TriotechTianjinCoLtdMember" name="TriotechTianjinCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_UniversalFarEastPteLtdMember" name="UniversalFarEastPteLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="trt_UnrealizedGainLossOnShorttermInvestments" name="UnrealizedGainLossOnShorttermInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" name="WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-ownership-details" name="statement-statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-ownership-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-tables" name="statement-statement-note-1-basis-of-presentation-and-summary-of-significant-accounting-policies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-10-other-assets-other-assets-details" name="statement-statement-note-10-other-assets-other-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-10-other-assets-tables" name="statement-statement-note-10-other-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-11-lines-of-credit-line-of-credit-details" name="statement-statement-note-11-lines-of-credit-line-of-credit-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-11-lines-of-credit-tables" name="statement-statement-note-11-lines-of-credit-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-12-accrued-expense-accrued-expenses-details" name="statement-statement-note-12-accrued-expense-accrued-expenses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-12-accrued-expense-tables" name="statement-statement-note-12-accrued-expense-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-13-assurance-warranty-accrual-tables" name="statement-statement-note-13-assurance-warranty-accrual-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-13-assurance-warranty-accrual-warrant-liability-details" name="statement-statement-note-13-assurance-warranty-accrual-warrant-liability-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-14-bank-loans-payable-bank-loans-details" name="statement-statement-note-14-bank-loans-payable-bank-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-14-bank-loans-payable-bank-loans-details-parentheticals" name="statement-statement-note-14-bank-loans-payable-bank-loans-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-14-bank-loans-payable-future-minimum-payments-details" name="statement-statement-note-14-bank-loans-payable-future-minimum-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-14-bank-loans-payable-tables" name="statement-statement-note-14-bank-loans-payable-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-15-other-noncurrent-liabilities-other-noncurrent-liabilities-details" name="statement-statement-note-15-other-noncurrent-liabilities-other-noncurrent-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-15-other-noncurrent-liabilities-tables" name="statement-statement-note-15-other-noncurrent-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-18-concentration-of-customers-revenue-and-trade-accounts-receivables-details" name="statement-statement-note-18-concentration-of-customers-revenue-and-trade-accounts-receivables-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-18-concentration-of-customers-tables" name="statement-statement-note-18-concentration-of-customers-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-19-business-segments-business-segment-information-details" name="statement-statement-note-19-business-segments-business-segment-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-19-business-segments-tables" name="statement-statement-note-19-business-segments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-20-other-income-expense-other-income-details" name="statement-statement-note-20-other-income-expense-other-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-20-other-income-expense-tables" name="statement-statement-note-20-other-income-expense-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-21-government-grants-grants-received-details" name="statement-statement-note-21-government-grants-grants-received-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-21-government-grants-tables" name="statement-statement-note-21-government-grants-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" name="statement-statement-note-22-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" name="statement-statement-note-22-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details" name="statement-statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details-parentheticals" name="statement-statement-note-22-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-schedule-of-loss-income-before-provision-for-income-taxes-details" name="statement-statement-note-22-income-taxes-schedule-of-loss-income-before-provision-for-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-summary-of-income-taxes-paid-details" name="statement-statement-note-22-income-taxes-summary-of-income-taxes-paid-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-22-income-taxes-tables" name="statement-statement-note-22-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-23-revenue-revenue-by-product-and-service-details" name="statement-statement-note-23-revenue-revenue-by-product-and-service-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-23-revenue-tables" name="statement-statement-note-23-revenue-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-24-earnings-per-share-computation-of-basic-and-diluted-eps-details" name="statement-statement-note-24-earnings-per-share-computation-of-basic-and-diluted-eps-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-24-earnings-per-share-tables" name="statement-statement-note-24-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-25-stock-options-summary-of-2017-directors-plan-options-activities-details" name="statement-statement-note-25-stock-options-summary-of-2017-directors-plan-options-activities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-25-stock-options-summary-of-2017-employee-plan-options-activities-details" name="statement-statement-note-25-stock-options-summary-of-2017-employee-plan-options-activities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-25-stock-options-summary-of-nonvested-employee-stock-details" name="statement-statement-note-25-stock-options-summary-of-nonvested-employee-stock-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-25-stock-options-tables" name="statement-statement-note-25-stock-options-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-26-leases-future-minimum-lease-payments-details" name="statement-statement-note-26-leases-future-minimum-lease-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-26-leases-future-minimum-rental-income-details" name="statement-statement-note-26-leases-future-minimum-rental-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-26-leases-other-information-details" name="statement-statement-note-26-leases-other-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-26-leases-supplement-balance-sheet-information-details" name="statement-statement-note-26-leases-supplement-balance-sheet-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-26-leases-tables" name="statement-statement-note-26-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-27-noncontrolling-interest-summary-of-equity-attributable-to-noncontrolling-interest-details" name="statement-statement-note-27-noncontrolling-interest-summary-of-equity-attributable-to-noncontrolling-interest-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-27-noncontrolling-interest-tables" name="statement-statement-note-27-noncontrolling-interest-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-3-term-deposits-tables" name="statement-statement-note-3-term-deposits-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-3-term-deposits-term-deposits-details" name="statement-statement-note-3-term-deposits-term-deposits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-allowance-for-doubtful-accounts-details" name="statement-statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-allowance-for-doubtful-accounts-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-tables" name="statement-statement-note-5-trade-account-receivables-and-allowance-for-credit-losses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-6-loans-receivable-from-property-development-projects-loans-receivable-details" name="statement-statement-note-6-loans-receivable-from-property-development-projects-loans-receivable-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-6-loans-receivable-from-property-development-projects-tables" name="statement-statement-note-6-loans-receivable-from-property-development-projects-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-7-inventories-changes-in-provision-for-obsolete-inventories-details" name="statement-statement-note-7-inventories-changes-in-provision-for-obsolete-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-7-inventories-inventories-details" name="statement-statement-note-7-inventories-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-7-inventories-tables" name="statement-statement-note-7-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-8-investment-properties-investment-properties-details" name="statement-statement-note-8-investment-properties-investment-properties-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-8-investment-properties-tables" name="statement-statement-note-8-investment-properties-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-9-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" name="statement-statement-note-9-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-note-9-property-plant-and-equipment-tables" name="statement-statement-note-9-property-plant-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="trt_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
