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          <link:definition>999013 - Disclosure - NOTE 8 &#8211; STOCKHOLDERS&#8217; EQUITY</link:definition>
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          <link:definition>999015 - Disclosure - NOTE 10 &#8211; RELATED PARTY TRANSACTIONS</link:definition>
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          <link:definition>999016 - Disclosure - NOTE 11 &#8211; PREPAYMENTS AND OTHER ASSETS</link:definition>
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          <link:definition>999017 - Disclosure - NOTE 13 &#8211; EARNINGS (LOSS) PER SHARE</link:definition>
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          <link:definition>999018 - Disclosure - NOTE 14 &#8211; CONVERTIBLE DEBT AND DERIVATIVE LIABILITY</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://scth/role/Note15RedeemableNon-controllingInterest" id="Note15RedeemableNon-controllingInterest">
          <link:definition>999019 - Disclosure - NOTE 15 &#8211; REDEEMABLE NON-CONTROLLING INTEREST</link:definition>
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        <link:roleType roleURI="http://scth/role/Note16Contingencylegal" id="Note16Contingencylegal">
          <link:definition>999020 - Disclosure - NOTE 16 &#8211; CONTINGENCY/LEGAL</link:definition>
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          <link:definition>999021 - Disclosure - NOTE 17 &#8211; SUBSEQUENT EVENTS</link:definition>
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        <link:roleType roleURI="http://scth/role/Note1SummaryOfSignificantAccountingPoliciesTables" id="Note1SummaryOfSignificantAccountingPoliciesTables">
          <link:definition>999023 - Disclosure - NOTE 1 &#8211; Summary of Significant Accounting Policies (Tables)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
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        <link:roleType roleURI="http://scth/role/Note4InventoriesNetTables" id="Note4InventoriesNetTables">
          <link:definition>999024 - Disclosure - NOTE 4 &#8211; INVENTORIES, NET (Tables)</link:definition>
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          <link:definition>999025 - Disclosure - NOTE 9 &#8211; SEGMENT INFORMATION (Tables)</link:definition>
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        <link:roleType roleURI="http://scth/role/PropertyAndEquipmentAndDepreciationDetails" id="PropertyAndEquipmentAndDepreciationDetails">
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        <link:roleType roleURI="http://scth/role/PropertyAndEquipmentDetails" id="PropertyAndEquipmentDetails">
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          <link:definition>999035 - Disclosure - NOTE 6 &#8211; CONTRACT LIABILITIES (Details Narrative)</link:definition>
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    <element id="scth_ShareExchangeRelated" name="ShareExchangeRelated" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_ShareExchangeRelatedPartyShares" name="ShareExchangeRelatedPartyShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="scth_AccretionsOfRedeemableNciToRedemptionValue" name="AccretionsOfRedeemableNciToRedemptionValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_ImputedInterest" name="ImputedInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_ImputedInterestAndAmortization" name="ImputedInterestAndAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_AmortizationOfOperatingLeaseRightofuseAssets" name="AmortizationOfOperatingLeaseRightofuseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_RepaymentsOfShortTermDebt1" name="RepaymentsOfShortTermDebt1" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_DepositPolicy" name="DepositPolicy" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="scth_PropertyAndEquipmentDepreciationTableTextBlock" name="PropertyAndEquipmentDepreciationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="scth_NetIncomeLossAvailableToCommonStockholdersBasic1" name="NetIncomeLossAvailableToCommonStockholdersBasic1" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_GrossProfit1" name="GrossProfit1" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_LiabilitiesCurrent1" name="LiabilitiesCurrent1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_NetIncomeLoss1" name="NetIncomeLoss1" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_StockIssuedDuringPeriodFoundersSharesShares" name="StockIssuedDuringPeriodFoundersSharesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="scth_AmountsDueToRelatedParties" name="AmountsDueToRelatedParties" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_RelatedPartyImputedInterest" name="RelatedPartyImputedInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_DeductibleVat" name="DeductibleVat" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_IncrementalCommonSharesAttributableToConversionOfSeriesAPreferredStock" name="IncrementalCommonSharesAttributableToConversionOfSeriesAPreferredStock" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="scth_EarningsPerShareBasic1" name="EarningsPerShareBasic1" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="scth_ProceedsFromConvertibleDebt1" name="ProceedsFromConvertibleDebt1" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_RedeemableNoncontrollingInterestAcquiredInBusinessCombination" name="RedeemableNoncontrollingInterestAcquiredInBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_NetProfitLossAttributableToRedeemableNoncontrollingInterests" name="NetProfitLossAttributableToRedeemableNoncontrollingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="scth_AccretionsAdjustmentToRedemptionValue" name="AccretionsAdjustmentToRedemptionValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
