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    <element id="STEK_CancellationOfSharesReturnedByShareholders" name="CancellationOfSharesReturnedByShareholders" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_NetProceedsFromFactoringArrangement" name="NetProceedsFromFactoringArrangement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_DisclosureFinancingArrangementFactoringLiabilityAbstract" name="DisclosureFinancingArrangementFactoringLiabilityAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FinancingArrangementTextBlock" name="FinancingArrangementTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FactoringLiabilityPolicyTextBlock" name="FactoringLiabilityPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FairValueMeasurementAcquiredAssetsPolicyPolicyTextBlock" name="FairValueMeasurementAcquiredAssetsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_SequencingPolicyPolicyTextBlock" name="SequencingPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_WorkingCapital" name="WorkingCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FiniteLivedIntangibleAssetUsefulLife1" name="FiniteLivedIntangibleAssetUsefulLife1" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearTwo" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_ConvertibleNotesPayableMaximumAmount" name="ConvertibleNotesPayableMaximumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_FactoredReceivablesGross" name="FactoredReceivablesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_ProceedsFromFactoredReceivables" name="ProceedsFromFactoredReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_NotesPayableRelatedParty" name="NotesPayableRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="STEK_OfficersEmployeesAndVendorsMember" name="OfficersEmployeesAndVendorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
