549300KGI78MKHO38N42 2020-12-31 549300KGI78MKHO38N42 2019-12-31 549300KGI78MKHO38N42 2020-01-01 2020-12-31 549300KGI78MKHO38N42 2019-01-01 2019-12-31 549300KGI78MKHO38N42 2018-12-31 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:SeparateMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:SeparateMember zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 zvtg:ContingencyReservesMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 zvtg:TreasurySharesReservesMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:TreasurySharesMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:EquityAttributableToOwnersOfParentMember 549300KGI78MKHO38N42 2019-01-01 2019-12-31 ifrs-full:NoncontrollingInterestsMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:IssuedCapitalMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:CapitalReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:StatutoryReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:MiscellaneousOtherReservesMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:FairValueReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:RetainedEarningsMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:NetProfitLossMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:ContingencyReservesMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:TreasurySharesReservesMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:TreasurySharesMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:EquityAttributableToOwnersOfParentMember 549300KGI78MKHO38N42 2020-01-01 2020-12-31 ifrs-full:NoncontrollingInterestsMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2018-12-31 zvtg:ContingencyReservesMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2018-12-31 zvtg:TreasurySharesReservesMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:TreasurySharesMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2018-12-31 zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2018-12-31 zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:EquityAttributableToOwnersOfParentMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:NoncontrollingInterestsMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:IssuedCapitalMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:CapitalReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:StatutoryReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:MiscellaneousOtherReservesMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 zvtg:FairValueReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:RetainedEarningsMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 zvtg:NetProfitLossMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2018-12-31 ifrs-full:SeparateMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:SeparateMember zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2019-12-31 zvtg:ContingencyReservesMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2019-12-31 zvtg:TreasurySharesReservesMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:TreasurySharesMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2019-12-31 zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2019-12-31 zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:EquityAttributableToOwnersOfParentMember 549300KGI78MKHO38N42 2019-12-31 ifrs-full:NoncontrollingInterestsMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2020-12-31 zvtg:ContingencyReservesMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:StatutoryReserveMember 549300KGI78MKHO38N42 2020-12-31 zvtg:TreasurySharesReservesMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:TreasurySharesMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2020-12-31 zvtg:FairValueReserveMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:RetainedEarningsMember 549300KGI78MKHO38N42 2020-12-31 zvtg:NetProfitLossMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:EquityAttributableToOwnersOfParentMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:NoncontrollingInterestsMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:SeparateMember ifrs-full:IssuedCapitalMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:SeparateMember ifrs-full:CapitalReserveMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:StatutoryReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:SeparateMember ifrs-full:MiscellaneousOtherReservesMember 549300KGI78MKHO38N42 2020-12-31 zvtg:FairValueReserveMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:RetainedEarningsMember ifrs-full:SeparateMember 549300KGI78MKHO38N42 2020-12-31 ifrs-full:SeparateMember zvtg:NetProfitLossMember iso4217:EUR iso4217:EUR xbrli:shares