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  <xsd:element name="ExchangeableStockSharesOutstanding" id="imsr_ExchangeableStockSharesOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IncreaseDecreaseInInterestPayableNonCurrent" id="imsr_IncreaseDecreaseInInterestPayableNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancialInstrumentsAbstract" id="imsr_FinancialInstrumentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SimonIrishMember" id="imsr_SimonIrishMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeaseExpiringOnMarch312028Member" id="imsr_LeaseExpiringOnMarch312028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeaseExpiringOnSeptember12026Member" id="imsr_LeaseExpiringOnSeptember12026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfLeaseArrangements" id="imsr_NumberOfLeaseArrangements" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LesseeOperatingLeaseAreaOfOfficeSpace" id="imsr_LesseeOperatingLeaseAreaOfOfficeSpace" type="dtr-types:areaItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LesseeOperatingLeaseNumberOfRenewalOptions" id="imsr_LesseeOperatingLeaseNumberOfRenewalOptions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="LesseeOperatingLeaseAnnualBaseRent" id="imsr_LesseeOperatingLeaseAnnualBaseRent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LesseeOperatingLeaseAnnualBaseRentIncrementalRatePercentage" id="imsr_LesseeOperatingLeaseAnnualBaseRentIncrementalRatePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="TexasAandMRellisCampusOfficeSpaceMember" id="imsr_TexasAandMRellisCampusOfficeSpaceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TexasAandMRellisCampusGroundLeaseMember" id="imsr_TexasAandMRellisCampusGroundLeaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
