| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ --> |
<!-- Creation Date : 2021-04-14T10:32:48.7522982+00:00 --> |
<!-- Version : 5.0.1.571 --> |
<!-- Package ID : adfb5bf946c34a678a848dae8a688803 --> |
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. --> |
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"> |
| <link:roleRef xlink:type="simple" xlink:href="ntp-20201231.xsd#TemplateLink" roleURI="http://www.namtai.com/20201231/role/TemplateLink"/> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:href="ntp-20201231.xsd#Role_StatementConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeLoss"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfRevenue" xlink:type="locator" xlink:label="us-gaap_CostOfRevenue"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues" xlink:type="locator" xlink:label="us-gaap_Revenues"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:type="locator" xlink:label="us-gaap_SellingAndMarketingExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses" xlink:type="locator" xlink:label="us-gaap_OperatingExpenses"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit" xlink:type="locator" xlink:label="us-gaap_GrossProfit"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_WriteOffOfDemolishedBuilding" xlink:type="locator" xlink:label="ntp_WriteOffOfDemolishedBuilding"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:type="locator" xlink:label="us-gaap_GainLossOnDispositionOfAssets"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_GainLossOnDemolishedBuildingFacilities" xlink:type="locator" xlink:label="ntp_GainLossOnDemolishedBuildingFacilities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeForeignDeposits" xlink:type="locator" xlink:label="us-gaap_InterestIncomeForeignDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:type="locator" xlink:label="us-gaap_OtherNonoperatingIncomeExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:type="locator" xlink:label="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_NetIncomeLoss" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_OperatingIncomeLoss" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_OtherNonoperatingIncomeExpense" order="10070.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_InterestIncomeForeignDeposits" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="ntp_GainLossOnDemolishedBuildingFacilities" order="10090.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_GainLossOnDispositionOfAssets" order="10100.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="ntp_WriteOffOfDemolishedBuilding" order="10110.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_GrossProfit" order="10120.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingExpenses" order="10130.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="10140.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_SellingAndMarketingExpense" order="10150.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_Revenues" order="10160.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_CostOfRevenue" order="10170.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedBalanceSheets" xlink:href="ntp-20201231.xsd#Role_StatementConsolidatedBalanceSheets" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedBalanceSheets"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_RealEstatePropertiesHeldForSalesTypeLeaseCurrent" xlink:type="locator" xlink:label="ntp_RealEstatePropertiesHeldForSalesTypeLeaseCurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_RealEstatePropertiesUnderDevelopmentNetCurrent" xlink:type="locator" xlink:label="ntp_RealEstatePropertiesUnderDevelopmentNetCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNetCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DepositsAssetsCurrent" xlink:type="locator" xlink:label="us-gaap_DepositsAssetsCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments" xlink:type="locator" xlink:label="us-gaap_ShortTermInvestments"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashCurrent" xlink:type="locator" xlink:label="us-gaap_RestrictedCashCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseNoncurrent" xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:type="locator" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_RealEstatePropertiesHeldForLeaseNetNoncurrent" xlink:type="locator" xlink:label="ntp_RealEstatePropertiesHeldForLeaseNetNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RealEstateHeldForDevelopmentAndSaleNet" xlink:type="locator" xlink:label="us-gaap_RealEstateHeldForDevelopmentAndSaleNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RentalProperties" xlink:type="locator" xlink:label="us-gaap_RentalProperties"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent" xlink:type="locator" xlink:label="us-gaap_AssetsCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets" xlink:type="locator" xlink:label="us-gaap_Assets"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_DueToRelatedPartiesExcludingShareholdersCurrent" xlink:type="locator" xlink:label="ntp_DueToRelatedPartiesExcludingShareholdersCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent" xlink:type="locator" xlink:label="us-gaap_DueToOfficersOrStockholdersCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:type="locator" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdvanceRent" xlink:type="locator" xlink:label="us-gaap_AdvanceRent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:type="locator" xlink:label="us-gaap_AccountsPayableCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LoansPayableToBankCurrent" xlink:type="locator" xlink:label="us-gaap_LoansPayableToBankCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermBankLoansAndNotesPayable" xlink:type="locator" xlink:label="us-gaap_ShortTermBankLoansAndNotesPayable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:type="locator" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLoansPayableLongTerm" xlink:type="locator" xlink:label="us-gaap_OtherLoansPayableLongTerm"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:type="locator" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_LongTermRentalDeposits" xlink:type="locator" xlink:label="ntp_LongTermRentalDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermLoansFromBank" xlink:type="locator" xlink:label="us-gaap_LongTermLoansFromBank"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue" xlink:type="locator" xlink:label="us-gaap_CommonStockValue"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity" xlink:type="locator" xlink:label="us-gaap_StockholdersEquity"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities" xlink:type="locator" xlink:label="us-gaap_Liabilities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_Liabilities" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_CommitmentsAndContingencies" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_StockholdersEquity" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_CommonStockValue" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="10070.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_LiabilitiesCurrent" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_LongTermLoansFromBank" order="10090.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="ntp_LongTermRentalDeposits" order="10100.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_FinanceLeaseLiabilityNoncurrent" order="10110.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherLoansPayableLongTerm" order="10120.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_DeferredIncomeTaxLiabilitiesNet" order="10130.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent" order="10140.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_ShortTermBankLoansAndNotesPayable" order="10150.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LoansPayableToBankCurrent" order="10160.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_AccountsPayableCurrent" order="10170.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_AdvanceRent" order="10180.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent" order="10190.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_ContractWithCustomerLiabilityCurrent" order="10200.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_DueToOfficersOrStockholdersCurrent" order="10210.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="ntp_DueToRelatedPartiesExcludingShareholdersCurrent" order="10220.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent" order="10230.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_AssetsCurrent" order="10240.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_RentalProperties" order="10250.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_RealEstateHeldForDevelopmentAndSaleNet" order="10260.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="10270.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="ntp_RealEstatePropertiesHeldForLeaseNetNoncurrent" order="10280.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_OperatingLeaseRightOfUseAsset" order="10290.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_DeferredIncomeTaxAssetsNet" order="10300.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_PrepaidExpenseNoncurrent" order="10310.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_OtherAssetsNoncurrent" order="10320.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations" order="10330.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_RestrictedCashCurrent" order="10340.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_ShortTermInvestments" order="10350.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_DepositsAssetsCurrent" order="10360.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent" order="10370.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="ntp_RealEstatePropertiesUnderDevelopmentNetCurrent" order="10380.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="ntp_RealEstatePropertiesHeldForSalesTypeLeaseCurrent" order="10390.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" order="10400.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows" xlink:href="ntp-20201231.xsd#Role_StatementConsolidatedStatementsOfCashFlows" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/StatementConsolidatedStatementsOfCashFlows"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDueToRelatedParties" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedParties"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInLongTermRentalDeposits" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInLongTermRentalDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInLeaseLiabilities" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInLeaseLiabilities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInRealEstatePropertiesUnderDevelopment" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInRealEstatePropertiesUnderDevelopment"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInRentalDeposits" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInRentalDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealized" xlink:type="locator" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensation"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_WriteOffOfDemolishedBuilding" xlink:type="locator" xlink:label="ntp_WriteOffOfDemolishedBuilding"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MarketableSecuritiesUnrealizedGainLoss" xlink:type="locator" xlink:label="us-gaap_MarketableSecuritiesUnrealizedGainLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="locator" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_AmortizationOfRightOfUseAsset" xlink:type="locator" xlink:label="ntp_AmortizationOfRightOfUseAsset"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:type="locator" xlink:label="us-gaap_DepreciationDepletionAndAmortization"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:type="locator" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInShortTermInvestments" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInShortTermInvestments"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsForProceedsFromShortTermInvestments" xlink:type="locator" xlink:label="us-gaap_PaymentsForProceedsFromShortTermInvestments"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInRefundableBankDeposits" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInRefundableBankDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ProceedsFromDisposalOfOtherNoncurrentAsset" xlink:type="locator" xlink:label="ntp_ProceedsFromDisposalOfOtherNoncurrentAsset"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ProceedsFromDisposalOfDemolishedBuilding" xlink:type="locator" xlink:label="ntp_ProceedsFromDisposalOfDemolishedBuilding"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfProductiveAssets"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInDepositsForPropertyPlantAndEquipment" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInDepositsForPropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInDepositsForRealEstatePropertiesUnderDevelopment" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInDepositsForRealEstatePropertiesUnderDevelopment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities" xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireMarketableSecurities"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_PaymentToPurchasePropertyPlantAndEquipment" xlink:type="locator" xlink:label="ntp_PaymentToPurchasePropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_AmountsDueToShareholderAndInvestor" xlink:type="locator" xlink:label="ntp_AmountsDueToShareholderAndInvestor"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:type="locator" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncreaseDecreaseInFinanceLeasePayable" xlink:type="locator" xlink:label="ntp_IncreaseDecreaseInFinanceLeasePayable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:type="locator" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromBankDebt" xlink:type="locator" xlink:label="us-gaap_ProceedsFromBankDebt"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfBankDebt" xlink:type="locator" xlink:label="us-gaap_RepaymentsOfBankDebt"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:type="locator" xlink:label="us-gaap_PaymentsOfDividends"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividends" order="10040.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_RepaymentsOfBankDebt" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromBankDebt" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDebtIssuanceCosts" order="10070.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="ntp_IncreaseDecreaseInFinanceLeasePayable" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromStockOptionsExercised" order="10090.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="ntp_AmountsDueToShareholderAndInvestor" order="10100.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_PaymentToPurchasePropertyPlantAndEquipment" order="10110.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireMarketableSecurities" order="10120.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_IncreaseDecreaseInDepositsForRealEstatePropertiesUnderDevelopment" order="10130.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_IncreaseDecreaseInDepositsForPropertyPlantAndEquipment" order="10140.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromSaleOfProductiveAssets" order="10150.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_ProceedsFromDisposalOfDemolishedBuilding" order="10160.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_ProceedsFromDisposalOfOtherNoncurrentAsset" order="10170.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" order="10180.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_IncreaseDecreaseInRefundableBankDeposits" order="10190.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForProceedsFromShortTermInvestments" order="10200.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntp_IncreaseDecreaseInShortTermInvestments" order="10210.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetIncomeLoss" order="10220.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" order="10230.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_DepreciationDepletionAndAmortization" order="10240.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_AmortizationOfRightOfUseAsset" order="10250.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" order="10260.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_MarketableSecuritiesUnrealizedGainLoss" order="10270.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_WriteOffOfDemolishedBuilding" order="10280.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_ShareBasedCompensation" order="10290.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossUnrealized" order="10300.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit" order="10310.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable" order="10320.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="10330.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_IncreaseDecreaseInRentalDeposits" order="10340.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_IncreaseDecreaseInRealEstatePropertiesUnderDevelopment" order="10350.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" order="10360.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable" order="10370.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_IncreaseDecreaseInLeaseLiabilities" order="10380.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" order="10390.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ntp_IncreaseDecreaseInLongTermRentalDeposits" order="10400.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInDueToRelatedParties" order="10410.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail"> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_LandUseRightsCurrent" xlink:type="locator" xlink:label="ntp_LandUseRightsCurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ConstructionInProgressGrossCurrent" xlink:type="locator" xlink:label="ntp_ConstructionInProgressGrossCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent" xlink:type="locator" xlink:label="us-gaap_AssetsCurrent"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="ntp_ConstructionInProgressGrossCurrent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="ntp_LandUseRightsCurrent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureNonCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureNonCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureNonCurrentPortionOfRealEstatePropertiesUnderDevelopmentNetDetail"> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentNoncurrent" xlink:type="locator" xlink:label="ntp_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentNoncurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_PropertyPlantAndEquipmentGrossNoncurrent" xlink:type="locator" xlink:label="ntp_PropertyPlantAndEquipmentGrossNoncurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_LandUseRightsNoncurrent" xlink:type="locator" xlink:label="ntp_LandUseRightsNoncurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ConstructionInProgressGrossNoncurrent" xlink:type="locator" xlink:label="ntp_ConstructionInProgressGrossNoncurrent"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_PropertyPlantAndEquipmentExcludingConstructionInProgressNoncurrent" xlink:type="locator" xlink:label="ntp_PropertyPlantAndEquipmentExcludingConstructionInProgressNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NoncurrentAssets" xlink:type="locator" xlink:label="us-gaap_NoncurrentAssets"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="ntp_PropertyPlantAndEquipmentExcludingConstructionInProgressNoncurrent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="ntp_ConstructionInProgressGrossNoncurrent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="ntp_LandUseRightsNoncurrent" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_PropertyPlantAndEquipmentExcludingConstructionInProgressNoncurrent" xlink:to="ntp_PropertyPlantAndEquipmentGrossNoncurrent" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_PropertyPlantAndEquipmentExcludingConstructionInProgressNoncurrent" xlink:to="ntp_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentNoncurrent" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfLeaseBuildingToThirdPartiesWithCarryingAmountDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureScheduleOfLeaseBuildingToThirdPartiesWithCarryingAmountDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfLeaseBuildingToThirdPartiesWithCarryingAmountDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xlink:type="locator" xlink:label="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" xlink:type="locator" xlink:label="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xlink:type="locator" xlink:label="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xlink:to="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xlink:to="us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" order="10020.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosurePropertyPlantAndEquipmentNetDetail" xlink:href="ntp-20201231.xsd#Role_DisclosurePropertyPlantAndEquipmentNetDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosurePropertyPlantAndEquipmentNetDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:type="locator" xlink:label="us-gaap_ConstructionInProgressGross"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="locator" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentGross"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentGross" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="10020.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_ConstructionInProgressGross" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfBankLoanDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureScheduleOfBankLoanDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfBankLoanDetail"> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ShortTermDebtIssuanceCost" xlink:type="locator" xlink:label="ntp_ShortTermDebtIssuanceCost"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ShortTermBankLoan" xlink:type="locator" xlink:label="ntp_ShortTermBankLoan"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:type="locator" xlink:label="us-gaap_ShortTermBorrowings"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:type="locator" xlink:label="us-gaap_DeferredFinanceCostsNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:type="locator" xlink:label="us-gaap_DebtInstrumentCarryingAmount"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt" xlink:type="locator" xlink:label="us-gaap_LongTermDebt"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_DebtInstrumentCarryingAmount" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_DeferredFinanceCostsNet" order="10020.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ShortTermBorrowings" xlink:to="ntp_ShortTermBankLoan" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ShortTermBorrowings" xlink:to="ntp_ShortTermDebtIssuanceCost" order="10040.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfBankLoanDetail2" xlink:href="ntp-20201231.xsd#Role_DisclosureScheduleOfBankLoanDetail2" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfBankLoanDetail2"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:type="locator" xlink:label="us-gaap_LongTermDebtNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:type="locator" xlink:label="us-gaap_LongTermDebtCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt" xlink:type="locator" xlink:label="us-gaap_LongTermDebt"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebtCurrent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebtNoncurrent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfMaturitiesOfLongTermBankLoanDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureScheduleOfMaturitiesOfLongTermBankLoanDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureScheduleOfMaturitiesOfLongTermBankLoanDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:type="locator" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:type="locator" xlink:label="us-gaap_DebtInstrumentCarryingAmount"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DebtInstrumentCarryingAmount" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureComputationOfBasicAndDilutedEarningsLossPerShareDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureComputationOfBasicAndDilutedEarningsLossPerShareDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureComputationOfBasicAndDilutedEarningsLossPerShareDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" order="10090.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" order="10100.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureComponentsOfOtherIncomeExpensesNetDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureComponentsOfOtherIncomeExpensesNetDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureComponentsOfOtherIncomeExpensesNetDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:type="locator" xlink:label="us-gaap_OtherNonoperatingIncome"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense" xlink:type="locator" xlink:label="us-gaap_InterestExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:type="locator" xlink:label="us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_GainLossOnSaleOfIdlePropertyPlantEquipment" xlink:type="locator" xlink:label="ntp_GainLossOnSaleOfIdlePropertyPlantEquipment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:type="locator" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:type="locator" xlink:label="us-gaap_OtherNonoperatingIncomeExpense"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="ntp_GainLossOnSaleOfIdlePropertyPlantEquipment" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_InterestExpense" order="10040.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_OtherNonoperatingIncome" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureComponentsOfLossIncomeBeforeIncomeTaxDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureComponentsOfLossIncomeBeforeIncomeTaxDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureComponentsOfLossIncomeBeforeIncomeTaxDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:type="locator" xlink:label="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfIncomeTaxCreditExpenseDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfIncomeTaxCreditExpenseDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfIncomeTaxCreditExpenseDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:type="locator" xlink:label="us-gaap_DeferredIncomeTaxesAndTaxCredits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxesAndTaxCredits" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_CurrentIncomeTaxExpenseBenefit" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureDeferredTaxAssetsDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureDeferredTaxAssetsDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureDeferredTaxAssetsDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:type="locator" xlink:label="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsGross"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:to="us-gaap_DeferredTaxAssetsGross" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance" order="10020.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureDeferredTaxLiabilitiesDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureDeferredTaxLiabilitiesDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureDeferredTaxLiabilitiesDetail"> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_DeferredTaxLiabilitiesOperatingLoss" xlink:type="locator" xlink:label="ntp_DeferredTaxLiabilitiesOperatingLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets" xlink:type="locator" xlink:label="us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_DeferredTaxLiabilitiesOperatingLeaseIncome" xlink:type="locator" xlink:label="ntp_DeferredTaxLiabilitiesOperatingLeaseIncome"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_DeferredTaxLiabilitiesSalesTypeLeaseIncome" xlink:type="locator" xlink:label="ntp_DeferredTaxLiabilitiesSalesTypeLeaseIncome"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:type="locator" xlink:label="us-gaap_DeferredTaxLiabilities"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxLiabilities" xlink:to="ntp_DeferredTaxLiabilitiesSalesTypeLeaseIncome" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxLiabilities" xlink:to="ntp_DeferredTaxLiabilitiesOperatingLeaseIncome" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxLiabilities" xlink:to="us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxLiabilities" xlink:to="ntp_DeferredTaxLiabilitiesOperatingLoss" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureReconciliationOfIncomeTaxExpenseToAmountComputedByApplyingCurrentStatutoryTaxRateToIncomeLossBeforeIncomeTaxesDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureReconciliationOfIncomeTaxExpenseToAmountComputedByApplyingCurrentStatutoryTaxRateToIncomeLossBeforeIncomeTaxesDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureReconciliationOfIncomeTaxExpenseToAmountComputedByApplyingCurrentStatutoryTaxRateToIncomeLossBeforeIncomeTaxesDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncomeTaxReconciliationNondeductibleExpensesAndTaxExemptIncome" xlink:type="locator" xlink:label="ntp_IncomeTaxReconciliationNondeductibleExpensesAndTaxExemptIncome"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="ntp_IncomeTaxReconciliationNondeductibleExpensesAndTaxExemptIncome" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationOtherAdjustments" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureContractualObligationsIncludingCapitalExpendituresAndFutureMinimumLeasePaymentsUnderNonCancelableOperatingLeaseArrangementsAndPurchaseCommitmentsDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureContractualObligationsIncludingCapitalExpendituresAndFutureMinimumLeasePaymentsUnderNonCancelableOperatingLeaseArrangementsAndPurchaseCommitmentsDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureContractualObligationsIncludingCapitalExpendituresAndFutureMinimumLeasePaymentsUnderNonCancelableOperatingLeaseArrangementsAndPurchaseCommitmentsDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractualObligationDueAfterFifthYear" xlink:type="locator" xlink:label="us-gaap_ContractualObligationDueAfterFifthYear"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractualObligationDueInFourthAndFifthYear" xlink:type="locator" xlink:label="us-gaap_ContractualObligationDueInFourthAndFifthYear"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractualObligationDueInSecondAndThirdYear" xlink:type="locator" xlink:label="us-gaap_ContractualObligationDueInSecondAndThirdYear"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractualObligationDueInNextTwelveMonths" xlink:type="locator" xlink:label="us-gaap_ContractualObligationDueInNextTwelveMonths"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractualObligation" xlink:type="locator" xlink:label="us-gaap_ContractualObligation"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ContractualObligation" xlink:to="us-gaap_ContractualObligationDueInNextTwelveMonths" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ContractualObligation" xlink:to="us-gaap_ContractualObligationDueInSecondAndThirdYear" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ContractualObligation" xlink:to="us-gaap_ContractualObligationDueInFourthAndFifthYear" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ContractualObligation" xlink:to="us-gaap_ContractualObligationDueAfterFifthYear" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLeaseCostAndCashFlowsArisingFromOperatingLeasesWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfLeaseCostAndCashFlowsArisingFromOperatingLeasesWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLeaseCostAndCashFlowsArisingFromOperatingLeasesWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubleaseIncome" xlink:type="locator" xlink:label="us-gaap_SubleaseIncome"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseCost"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseCost" xlink:type="locator" xlink:label="us-gaap_LeaseCost"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_OperatingLeaseCost" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_SubleaseIncome" order="10020.00" priority="2" use="optional" weight="-1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail2" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail2" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfMaturitiesOfLeaseLiabilitiesDetail2"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiability"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_OperatingLeaseLiability" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLeaseLiabilitiesDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfLeaseLiabilitiesDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLeaseLiabilitiesDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiability"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLongLivedAssetsByGeographicalAreasDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureSummaryOfLongLivedAssetsByGeographicalAreasDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureSummaryOfLongLivedAssetsByGeographicalAreasDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_RealEstateHeldForLease" xlink:type="locator" xlink:label="ntp_RealEstateHeldForLease"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RealEstateHeldForDevelopmentAndSaleNet" xlink:type="locator" xlink:label="us-gaap_RealEstateHeldForDevelopmentAndSaleNet"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NoncurrentAssets" xlink:type="locator" xlink:label="us-gaap_NoncurrentAssets"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="us-gaap_RealEstateHeldForDevelopmentAndSaleNet" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="ntp_RealEstateHeldForLease" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoncurrentAssets" xlink:to="us-gaap_OperatingLeaseRightOfUseAsset" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureStatementsOfComprehensiveIncomeLossDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureStatementsOfComprehensiveIncomeLossDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureStatementsOfComprehensiveIncomeLossDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeForeignDeposits" xlink:type="locator" xlink:label="us-gaap_InterestIncomeForeignDeposits"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:type="locator" xlink:label="us-gaap_OtherNonoperatingIncomeExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:type="locator" xlink:label="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_NetIncomeLossFromSubsidiaries" xlink:type="locator" xlink:label="ntp_NetIncomeLossFromSubsidiaries"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_ProfitLossOfTheParent" xlink:type="locator" xlink:label="ntp_ProfitLossOfTheParent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="ntp_ProfitLossOfTheParent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="ntp_NetIncomeLossFromSubsidiaries" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_ProfitLossOfTheParent" xlink:to="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_ProfitLossOfTheParent" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="10060.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_OtherNonoperatingIncomeExpense" order="10070.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntp_IncomeLossIncludingDiscontinuedOperationsBeforeIncomeTaxes" xlink:to="us-gaap_InterestIncomeForeignDeposits" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureBalanceSheetsDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureBalanceSheetsDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureBalanceSheetsDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueFromAffiliateCurrent" xlink:type="locator" xlink:label="us-gaap_DueFromAffiliateCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:type="locator" xlink:label="us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent" xlink:type="locator" xlink:label="us-gaap_AssetsCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets" xlink:type="locator" xlink:label="us-gaap_Assets"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToAffiliateCurrent" xlink:type="locator" xlink:label="us-gaap_DueToAffiliateCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent" xlink:type="locator" xlink:label="us-gaap_DueToOfficersOrStockholdersCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities" xlink:type="locator" xlink:label="us-gaap_Liabilities"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_AccruedLiabilitiesCurrent" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_DueToOfficersOrStockholdersCurrent" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_DueToAffiliateCurrent" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_AssetsCurrent" order="10040.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" order="10050.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" order="10070.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_DueFromAffiliateCurrent" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.namtai.com/20201231/taxonomy/role/DisclosureStatementsOfCashFlowsDetail" xlink:href="ntp-20201231.xsd#Role_DisclosureStatementsOfCashFlowsDetail" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://www.namtai.com/20201231/taxonomy/role/DisclosureStatementsOfCashFlowsDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="locator" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensation"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Depreciation" xlink:type="locator" xlink:label="us-gaap_Depreciation"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_NetIncomeLossFromSubsidiaries" xlink:type="locator" xlink:label="ntp_NetIncomeLossFromSubsidiaries"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseDueFromAffiliates"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/> |
| | <link:loc xlink:href="ntp-20201231.xsd#ntp_AmountsDueToShareholderAndInvestor" xlink:type="locator" xlink:label="ntp_AmountsDueToShareholderAndInvestor"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:type="locator" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:type="locator" xlink:label="us-gaap_PaymentsOfDividends"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:type="locator" xlink:label="us-gaap_RepaymentsOfLongTermDebt"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="10010.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="10020.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="10030.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_RepaymentsOfLongTermDebt" order="10040.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividends" order="10050.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromStockOptionsExercised" order="10060.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="ntp_AmountsDueToShareholderAndInvestor" order="10070.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" order="10080.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_IncreaseDecreaseDueFromAffiliates" order="10090.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetIncomeLoss" order="10100.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntp_NetIncomeLossFromSubsidiaries" order="10110.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_Depreciation" order="10120.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_ShareBasedCompensation" order="10130.00" priority="2" use="optional" weight="1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" order="10140.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="10150.00" priority="2" use="optional" weight="-1.00"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" order="10160.00" priority="2" use="optional" weight="1.00"/> |
| | </link:calculationLink> |
| </link:linkbase> |