<?xml version="1.0" encoding="UTF-8"?><xbrl xmlns="http://www.xbrl.org/2003/instance" xmlns:g="http://xbrl.dcca.dk/sob" xmlns:b="http://xbrl.dcca.dk/entryBalanceSheetAccountFormIncomeStatementByNature" xmlns:h="http://xbrl.dcca.dk/mrv" xmlns:f="http://xbrl.dcca.dk/arr" xmlns:d="http://xbrl.dcca.dk/cmn" xmlns:e="http://xbrl.dcca.dk/fsa" xmlns:c="http://xbrl.dcca.dk/gsd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xbrl.dcca.dk/entryBalanceSheetAccountFormIncomeStatementByNature http://archprod.service.eogs.dk/taxonomy/20171001/entryDanishGAAPBalanceSheetAccountFormIncomeStatementByNatureIncludingManagementsReviewStatisticsAndTax20171001.xsd"><link:schemaRef xlink:type="simple" xlink:href="http://archprod.service.eogs.dk/taxonomy/20171001/entryDanishGAAPBalanceSheetAccountFormIncomeStatementByNatureIncludingManagementsReviewStatisticsAndTax20171001.xsd"/><c:InformationOnTypeOfSubmittedReport contextRef="c1">Årsrapport</c:InformationOnTypeOfSubmittedReport><c:IdentificationNumberCvrOfSubmittingEnterprise contextRef="c1">15915641</c:IdentificationNumberCvrOfSubmittingEnterprise><c:NameOfSubmittingEnterprise contextRef="c1">Christensen Kjærulff, Statsautoriseret Revisionsaktieselskab</c:NameOfSubmittingEnterprise><c:AddressOfSubmittingEnterpriseStreetAndNumber contextRef="c1">Store Kongensgade, 68</c:AddressOfSubmittingEnterpriseStreetAndNumber><c:AddressOfSubmittingEnterprisePostcodeAndTown contextRef="c1">1264, København K</c:AddressOfSubmittingEnterprisePostcodeAndTown><c:PrecedingReportingPeriodStartDate contextRef="c1">2017-01-01</c:PrecedingReportingPeriodStartDate><c:PredingReportingPeriodEndDate contextRef="c1">2017-12-31</c:PredingReportingPeriodEndDate><c:ReportingPeriodStartDate contextRef="c1">2018-01-01</c:ReportingPeriodStartDate><c:ReportingPeriodEndDate contextRef="c1">2018-12-31</c:ReportingPeriodEndDate><c:DateOfApprovalOfReport contextRef="c1">2019-04-01</c:DateOfApprovalOfReport><c:IdentificationNumberCvrOfReportingEntity contextRef="c1">27913741</c:IdentificationNumberCvrOfReportingEntity><c:NameOfReportingEntity contextRef="c1">OpGen A/S</c:NameOfReportingEntity><c:AddressOfReportingEntityStreetName contextRef="c1">Gungevej</c:AddressOfReportingEntityStreetName><c:AddressOfReportingEntityStreetBuildingIdentifier contextRef="c1">2</c:AddressOfReportingEntityStreetBuildingIdentifier><c:AddressOfReportingEntityPostCodeIdentifier contextRef="c1">2650</c:AddressOfReportingEntityPostCodeIdentifier><c:AddressOfReportingEntityDistrictName contextRef="c1">Hvidovre</c:AddressOfReportingEntityDistrictName><c:DateOfFoundationOfReportingEntity contextRef="c1">2004-06-17</c:DateOfFoundationOfReportingEntity><c:RegisteredOfficeOfReportingEntity contextRef="c1">Hvidovre</c:RegisteredOfficeOfReportingEntity><c:HomepageOfReportingEntity contextRef="c1">www.opgen.com</c:HomepageOfReportingEntity><d:NameOfAuditFirm contextRef="c87">Christensen Kjærulff, Statsautoriseret Revisionsaktieselskab</d:NameOfAuditFirm><d:IdentificationNumberCvrOfAuditFirm contextRef="c87">15915641</d:IdentificationNumberCvrOfAuditFirm><d:NameAndSurnameOfAuditor contextRef="c87">Iver Haugsted</d:NameAndSurnameOfAuditor><d:DescriptionOfAuditor contextRef="c87">statsautoriseret revisor</d:DescriptionOfAuditor><d:IdentificationNumberOfAuditor contextRef="c87">mne10678</d:IdentificationNumberOfAuditor><c:AddressOfAuditorStreetName contextRef="c87">Store Kongensgade</c:AddressOfAuditorStreetName><c:AddressOfAuditorStreetBuildingIdentifier contextRef="c87">68</c:AddressOfAuditorStreetBuildingIdentifier><c:AddressOfAuditorPostCodeIdentifier contextRef="c87">1264</c:AddressOfAuditorPostCodeIdentifier><c:AddressOfAuditorDistrictName contextRef="c87">København K</c:AddressOfAuditorDistrictName><c:AddressOfAuditorCountry contextRef="c1">Danmark</c:AddressOfAuditorCountry><c:TelephoneNumberOfAuditor contextRef="c87">+45 33 30 15 15</c:TelephoneNumberOfAuditor><c:EmailOfAuditor contextRef="c1">ck@ck.dk</c:EmailOfAuditor><c:DateOfGeneralMeeting contextRef="c1">2019-04-24</c:DateOfGeneralMeeting><c:NameAndSurnameOfChairmanOfGeneralMeeting contextRef="c1">Evan Jones</c:NameAndSurnameOfChairmanOfGeneralMeeting><e:ClassOfReportingEntity contextRef="c1">Regnskabsklasse B</e:ClassOfReportingEntity><d:TypeOfAuditorAssistance contextRef="c1">Revisionspåtegning</d:TypeOfAuditorAssistance><f:AddresseeOfAuditorsReportOnAuditedFinancialStatements contextRef="c1">kapitalejeren</f:AddresseeOfAuditorsReportOnAuditedFinancialStatements><f:SignatureOfAuditorsPlace contextRef="c1">København</f:SignatureOfAuditorsPlace><f:SignatureOfAuditorsDate contextRef="c1">2019-04-01</f:SignatureOfAuditorsDate><g:PlaceOfSignatureOfStatement contextRef="c1">Hvidovre</g:PlaceOfSignatureOfStatement><g:DateOfApprovalOfAnnualReport contextRef="c1">2019-04-01</g:DateOfApprovalOfAnnualReport><e:GrossProfitLoss contextRef="c1" unitRef="u5" decimals="0">332048</e:GrossProfitLoss><e:GrossProfitLoss contextRef="c3" unitRef="u5" decimals="-3">409000</e:GrossProfitLoss><e:EmployeeBenefitsExpense contextRef="c1" unitRef="u5" decimals="0">1053827</e:EmployeeBenefitsExpense><e:EmployeeBenefitsExpense contextRef="c3" unitRef="u5" decimals="-3">1019000</e:EmployeeBenefitsExpense><e:ProfitLossFromOrdinaryOperatingActivities contextRef="c1" unitRef="u5" decimals="0">-721779</e:ProfitLossFromOrdinaryOperatingActivities><e:ProfitLossFromOrdinaryOperatingActivities contextRef="c3" unitRef="u5" decimals="-3">-610000</e:ProfitLossFromOrdinaryOperatingActivities><e:OtherFinanceIncome contextRef="c1" unitRef="u5" decimals="0">9</e:OtherFinanceIncome><e:OtherFinanceIncome contextRef="c3" unitRef="u5" decimals="-3">199000</e:OtherFinanceIncome><e:OtherFinanceExpenses contextRef="c1" unitRef="u5" decimals="0">118212</e:OtherFinanceExpenses><e:OtherFinanceExpenses contextRef="c3" unitRef="u5" decimals="-3">1000</e:OtherFinanceExpenses><e:ProfitLossFromOrdinaryActivitiesBeforeTax contextRef="c1" unitRef="u5" decimals="0">-839982</e:ProfitLossFromOrdinaryActivitiesBeforeTax><e:ProfitLossFromOrdinaryActivitiesBeforeTax contextRef="c3" unitRef="u5" decimals="-3">-412000</e:ProfitLossFromOrdinaryActivitiesBeforeTax><e:ProfitLoss contextRef="c1" unitRef="u5" decimals="0">-839982</e:ProfitLoss><e:ProfitLoss contextRef="c3" unitRef="u5" decimals="-3">-412000</e:ProfitLoss><e:ProfitLoss contextRef="c119" unitRef="u5" decimals="0">-839982</e:ProfitLoss><e:ProfitLoss contextRef="c120" unitRef="u5" decimals="-3">-412000</e:ProfitLoss><e:DepositsLongtermInvestmentsAndReceivables contextRef="c6" unitRef="u5" decimals="0">32825</e:DepositsLongtermInvestmentsAndReceivables><e:DepositsLongtermInvestmentsAndReceivables contextRef="c4" unitRef="u5" decimals="-3">33000</e:DepositsLongtermInvestmentsAndReceivables><e:LongtermInvestmentsAndReceivables contextRef="c6" unitRef="u5" decimals="0">32825</e:LongtermInvestmentsAndReceivables><e:LongtermInvestmentsAndReceivables contextRef="c4" unitRef="u5" decimals="-3">33000</e:LongtermInvestmentsAndReceivables><e:NoncurrentAssets contextRef="c6" unitRef="u5" decimals="0">32825</e:NoncurrentAssets><e:NoncurrentAssets contextRef="c4" unitRef="u5" decimals="-3">33000</e:NoncurrentAssets><e:AssetsMeantForSale contextRef="c6" unitRef="u5" decimals="0">128110</e:AssetsMeantForSale><e:AssetsMeantForSale contextRef="c4" unitRef="u5" decimals="-3">119000</e:AssetsMeantForSale><e:Inventories contextRef="c6" unitRef="u5" decimals="0">128110</e:Inventories><e:Inventories contextRef="c4" unitRef="u5" decimals="-3">119000</e:Inventories><e:ShorttermTradeReceivables contextRef="c6" unitRef="u5" decimals="0">314300</e:ShorttermTradeReceivables><e:ShorttermTradeReceivables contextRef="c4" unitRef="u5" decimals="-3">281000</e:ShorttermTradeReceivables><e:ShorttermReceivablesFromGroupEnterprises contextRef="c6" unitRef="u5" decimals="0">5516139</e:ShorttermReceivablesFromGroupEnterprises><e:ShorttermReceivablesFromGroupEnterprises contextRef="c4" unitRef="u5" decimals="-3">6310000</e:ShorttermReceivablesFromGroupEnterprises><e:OtherShorttermReceivables contextRef="c6" unitRef="u5" decimals="0">1821</e:OtherShorttermReceivables><e:OtherShorttermReceivables contextRef="c4" unitRef="u5" decimals="-3">24000</e:OtherShorttermReceivables><e:DeferredIncomeAssets contextRef="c6" unitRef="u5" decimals="0">10167</e:DeferredIncomeAssets><e:DeferredIncomeAssets contextRef="c4" unitRef="u5" decimals="-3">10000</e:DeferredIncomeAssets><e:ShorttermReceivables contextRef="c6" unitRef="u5" decimals="0">5842427</e:ShorttermReceivables><e:ShorttermReceivables contextRef="c4" unitRef="u5" decimals="-3">6625000</e:ShorttermReceivables><e:CashAndCashEquivalents contextRef="c6" unitRef="u5" decimals="0">114367</e:CashAndCashEquivalents><e:CashAndCashEquivalents contextRef="c4" unitRef="u5" decimals="-3">186000</e:CashAndCashEquivalents><e:CurrentAssets contextRef="c6" unitRef="u5" decimals="0">6084904</e:CurrentAssets><e:CurrentAssets contextRef="c4" unitRef="u5" decimals="-3">6930000</e:CurrentAssets><e:Assets contextRef="c6" unitRef="u5" decimals="0">6117729</e:Assets><e:Assets contextRef="c4" unitRef="u5" decimals="-3">6963000</e:Assets><e:RecognisedButNotOwnedAssets contextRef="c1" unitRef="u5" decimals="0">0</e:RecognisedButNotOwnedAssets><e:ContributedCapital contextRef="c6" unitRef="u5" decimals="0">500000</e:ContributedCapital><e:ContributedCapital contextRef="c4" unitRef="u5" decimals="-3">500000</e:ContributedCapital><e:RetainedEarnings contextRef="c6" unitRef="u5" decimals="0">-3156253</e:RetainedEarnings><e:RetainedEarnings contextRef="c4" unitRef="u5" decimals="-3">-2316000</e:RetainedEarnings><e:Equity contextRef="c6" unitRef="u5" decimals="0">-2656253</e:Equity><e:Equity contextRef="c4" unitRef="u5" decimals="-3">-1816000</e:Equity><e:ShorttermTradePayables contextRef="c6" unitRef="u5" decimals="0">47842</e:ShorttermTradePayables><e:ShorttermTradePayables contextRef="c4" unitRef="u5" decimals="-3">60000</e:ShorttermTradePayables><e:ShorttermPayablesToGroupEnterprises contextRef="c6" unitRef="u5" decimals="0">8512457</e:ShorttermPayablesToGroupEnterprises><e:ShorttermPayablesToGroupEnterprises contextRef="c4" unitRef="u5" decimals="-3">8512000</e:ShorttermPayablesToGroupEnterprises><e:OtherShorttermPayables contextRef="c6" unitRef="u5" decimals="0">213683</e:OtherShorttermPayables><e:OtherShorttermPayables contextRef="c4" unitRef="u5" decimals="-3">207000</e:OtherShorttermPayables><e:ShorttermLiabilitiesOtherThanProvisions contextRef="c6" unitRef="u5" decimals="0">8773982</e:ShorttermLiabilitiesOtherThanProvisions><e:ShorttermLiabilitiesOtherThanProvisions contextRef="c4" unitRef="u5" decimals="-3">8779000</e:ShorttermLiabilitiesOtherThanProvisions><e:LiabilitiesOtherThanProvisions contextRef="c6" unitRef="u5" decimals="0">8773982</e:LiabilitiesOtherThanProvisions><e:LiabilitiesOtherThanProvisions contextRef="c4" unitRef="u5" decimals="-3">8779000</e:LiabilitiesOtherThanProvisions><e:LiabilitiesAndEquity contextRef="c6" unitRef="u5" decimals="0">6117729</e:LiabilitiesAndEquity><e:LiabilitiesAndEquity contextRef="c4" unitRef="u5" decimals="-3">6963000</e:LiabilitiesAndEquity><e:WagesAndSalaries contextRef="c1" unitRef="u5" decimals="0">1049243</e:WagesAndSalaries><e:WagesAndSalaries contextRef="c3" unitRef="u5" decimals="-3">1015000</e:WagesAndSalaries><e:SocialSecurityContributions contextRef="c1" unitRef="u5" decimals="0">4584</e:SocialSecurityContributions><e:SocialSecurityContributions contextRef="c3" unitRef="u5" decimals="-3">4000</e:SocialSecurityContributions><e:EmployeeBenefitsExpense contextRef="c1" unitRef="u5" decimals="0">1053827</e:EmployeeBenefitsExpense><e:EmployeeBenefitsExpense contextRef="c3" unitRef="u5" decimals="-3">1019000</e:EmployeeBenefitsExpense><e:AverageNumberOfEmployees contextRef="c1" unitRef="u7" decimals="INF">1</e:AverageNumberOfEmployees><e:AverageNumberOfEmployees contextRef="c3" unitRef="u7" decimals="INF">1</e:AverageNumberOfEmployees><e:OtherInterestExpenses contextRef="c1" unitRef="u5" decimals="0">118212</e:OtherInterestExpenses><e:OtherInterestExpenses contextRef="c3" unitRef="u5" decimals="-3">1000</e:OtherInterestExpenses><e:OtherFinanceExpenses contextRef="c1" unitRef="u5" decimals="0">118212</e:OtherFinanceExpenses><e:OtherFinanceExpenses contextRef="c3" unitRef="u5" decimals="-3">1000</e:OtherFinanceExpenses><e:Equity contextRef="c177" unitRef="u5" decimals="0">500000</e:Equity><e:Equity contextRef="c704" unitRef="u5" decimals="-3">500000</e:Equity><e:Equity contextRef="c179" unitRef="u5" decimals="0">500000</e:Equity><e:Equity contextRef="c706" unitRef="u5" decimals="-3">500000</e:Equity><e:Equity contextRef="c195" unitRef="u5" decimals="0">-2316271</e:Equity><e:Equity contextRef="c725" unitRef="u5" decimals="-3">-1904000</e:Equity><e:ProfitLoss contextRef="c196" unitRef="u5" decimals="0">-839982</e:ProfitLoss><e:ProfitLoss contextRef="c726" unitRef="u5" decimals="-3">-412000</e:ProfitLoss><e:Equity contextRef="c197" unitRef="u5" decimals="0">-3156253</e:Equity><e:Equity contextRef="c727" unitRef="u5" decimals="-3">-2316000</e:Equity><g:IdentificationOfApprovedAnnualReport contextRef="c1" xml:lang="en">The board of directors and the managing director have today presented the annual report of OpGen A/S for the financial year 1 January to 31 December 2018.
</g:IdentificationOfApprovedAnnualReport><g:ConfirmationThatAnnualReportIsPresentedInAccordanceWithRequirementsProvidedForByLegislationAnyStandardsAndRequirementsProvidedByArticlesOfAssociationOrByAgreement contextRef="c1" xml:lang="en">The annual report has been presented in accordance with the Danish Financial Statements Act.
</g:ConfirmationThatAnnualReportIsPresentedInAccordanceWithRequirementsProvidedForByLegislationAnyStandardsAndRequirementsProvidedByArticlesOfAssociationOrByAgreement><g:ConfirmationThatFinancialStatementGivesTrueAndFairViewOfAssetsLiabilitiesEquityFinancialPositionAndResults contextRef="c1" xml:lang="en">We consider the accounting policies used appropriate, and in our opinion the annual accounts provide a true and fair view of the company's assets and liabilities and its financial position at 31 December 2018 and of the company's results of its activities in the financial year 1 January to 31 December 2018.
</g:ConfirmationThatFinancialStatementGivesTrueAndFairViewOfAssetsLiabilitiesEquityFinancialPositionAndResults><g:ManagementsStatementAboutManagementsReview contextRef="c1" xml:lang="en">We are of the opinion that the management's review includes a fair description of the issues dealt with.
</g:ManagementsStatementAboutManagementsReview><g:RecommendationForApprovalOfAnnualReportByGeneralMeeting contextRef="c1" xml:lang="en">The annual report is recommended for approval by the general meeting.
</g:RecommendationForApprovalOfAnnualReportByGeneralMeeting><d:NameAndSurnameOfMemberOfExecutiveBoard contextRef="c70">Timothy Carrol Dec</d:NameAndSurnameOfMemberOfExecutiveBoard><d:NameAndSurnameOfMemberOfSupervisoryBoard contextRef="c31">Evan Jones</d:NameAndSurnameOfMemberOfSupervisoryBoard><d:NameAndSurnameOfMemberOfSupervisoryBoard contextRef="c47">Timothy Carrol Dec</d:NameAndSurnameOfMemberOfSupervisoryBoard><d:NameAndSurnameOfMemberOfSupervisoryBoard contextRef="c48">Vadim Sapiro</d:NameAndSurnameOfMemberOfSupervisoryBoard><f:OpinionOnAuditedFinancialStatements contextRef="c1" xml:lang="en">We have audited the annual accounts of OpGen A/S for the financial year 1 January to 31 December 2018, which comprise accounting policies used, profit and loss account, balance sheet and notes. The annual accounts are prepared in accordance with the Danish Financial Statements Act.

In our opinion, the annual accounts give a true and fair view of the company's assets, liabilities and financial position at 31 December 2018 and of the results of the company's operations for the financial year 1 January to 31 December 2018 in accordance with the Danish Financial Statements Act.
</f:OpinionOnAuditedFinancialStatements><f:DescriptionOfQualificationsOfAuditedFinancialStatements contextRef="c1" xml:lang="en">Basis for opinion
We conducted our audit in accordance with international standards on auditing and the additional requirements applicable in Denmark. Our responsibilities under those standards and requirements are further described in the below section “Auditor’s responsibilities for the audit of the annual accounts”. We are independent of the company in accordance with international ethics standards for accountants (IESBA's Code of Ethics) and the additional requirements applicable in Denmark, and we have fulfilled our other ethical responsibilities in accordance with these standards and requirements. We believe that the audit evidence obtained is sufficient and appropriate to provide a basis for our opinion.
</f:DescriptionOfQualificationsOfAuditedFinancialStatements><f:MaterialUncertaintyConcerningGoingConcernAudit contextRef="c1" xml:lang="en">Material uncertainties concerning the enterprise's ability to continue as a going concern
Regarding uncertainty concerning the enterprise's ability to continue as a going concern, management has assumed that AdvanDx Inc and the ultimate parent OpGen Inc. will continue to provide the necessary liquidity to the Company for the current year and into the beginning of 2020.

OpGen A/S has received written commitment from the ultimate parent company OpGen Inc.
</f:MaterialUncertaintyConcerningGoingConcernAudit><f:StatementOfExecutiveAndSupervisoryBoardsResponsibilityForFinancialStatements contextRef="c1" xml:lang="en">The management is responsible for the preparation of annual accounts that give a true and fair view in accordance with the Danish Financial Statements Act. The management is also responsible for such internal control as the management determines is necessary to enable the preparation of annual accounts that are free from material misstatement, whether due to fraud or error.

In preparing the annual accounts, the management is responsible for evaluating the company's ability to continue as a going concern, and, when relevant, disclosing matters related to going concern and using the going concern basis of accounting when preparing the annual accounts, unless the management either intends to liquidate the company or to cease operations, or if it has no realistic alternative but to do so.
</f:StatementOfExecutiveAndSupervisoryBoardsResponsibilityForFinancialStatements><f:StatementOfAuditorsResponsibilityForAuditAndAuditPerformed contextRef="c1" xml:lang="en">Our objectives are to obtain reasonable assurance about whether the annual accounts as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditor’s report including an opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that an audit conducted in accordance with international standards on auditing and the additional requirements applicable in Denmark will always detect a material misstatement when it exists. Misstatements may arise due to fraud or error and may be considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions made by users on the basis of the annual accounts.

As part of an audit conducted in accordance with international standards on auditing and the additional requirements applicable in Denmark, we exercise professional evaluations and maintain professional scepticism throughout the audit. We also: 

Identify and assess the risks of material misstatement in the annual accounts, whether due to fraud or error, design and perform audit procedures in response to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than the risk of not detecting a misstatement resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control.

Obtain an understanding of the internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the company's internal control.

Evaluate the appropriateness of accounting policies used by the management and the reasonableness of accounting estimates and related disclosures made by the management.

Conclude on the appropriateness of the management’s preparation of the annual accounts being based on the going concern principle and, based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may raise significant doubt about the company's ability to continue as a going concern. If we conclude that a material uncertainty exists, we are required to draw attention in our auditor’s report to the related disclosures in the annual accounts or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor’s report. However, future events or conditions may cause the company to cease to continue as a going concern.

Evaluate the overall presentation, structure and contents of the annual accounts, including the disclosures in the notes, and whether the annual accounts reflect the underlying transactions and events in a manner that gives a true and fair view.

We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in the internal control that we identify during our audit.
</f:StatementOfAuditorsResponsibilityForAuditAndAuditPerformed><f:StatementOnManagementsReviewAuditorsReportOnAuditedFinancialStatements contextRef="c1" xml:lang="en">Statement on the management's review
The management is responsible for the management's review.

Our opinion on the annual accounts does not cover the management’s review, and we do not express any kind of assurance opinion on the management's review.

In connection with our audit of the annual accounts, our responsibility is to read the management’s review and in that connection consider whether the management’s review is materially inconsistent with the annual accounts or our knowledge obtained during the audit, or whether it otherwise appears to contain material misstatement.

Furthermore, it is our responsibility to consider whether the management's review provides the information required under the Danish Financial Statements Act.

Based on the work we have performed, we believe that the management's review is in accordance with the annual accounts and that it has been prepared in accordance with the requirements of the Danish Financial Statement Acts. We did not find any material misstatement in the management's review.
</f:StatementOnManagementsReviewAuditorsReportOnAuditedFinancialStatements><h:DescriptionOfPrimaryActivitiesOfEntity contextRef="c1" xml:lang="en">The principal activities of the company
Opgen A/S is a wholly-owned subsidiary of AdvanDx Inc. AdvanDx Inc was in July 2015 aquired by OpGen Inc. OpGen develops and markets molecular diagnostic tests for identification of pathogens causing critical infections. Test results are available in hours rather than days, allowing healthcare providers to make faster and better qualified therapy decisions for the benefit of patients as well as hospitals.

OpGen A/S was founded with the primary objective of building the organisation’s sales and marketing activities outside the US and conducting research and development programmes within the organisation’s strategic areas.
</h:DescriptionOfPrimaryActivitiesOfEntity><h:DescriptionOfDevelopmentInActivitiesAndFinancialAffairs contextRef="c1" xml:lang="en">Development in activities and financial matters
The gross profit for the year is tDKK 332 against tDKK 409 last year. The results from ordinary activities after tax are tDKK -840 against tDKK -412 last year. The management consider the results not satisfactory.

Capital resources:
OpGen A/S has received a written commitment from the ultimate parent company, OpGen Inc, to provide the required liquidity to OpGen A/S for the currenct year and onwards until the beginning of 2020.
</h:DescriptionOfDevelopmentInActivitiesAndFinancialAffairs><e:DisclosureOfUncertaintiesRelatingToGoingConcern contextRef="c1" xml:lang="en">1.
Uncertainties concerning the enterprise's ability to continue as a going concern
Regarding uncertainty concerning the enterprise's ability to continue as a going concern, management has assumed that AdvanDx Inc and the ultimate parent OpGen Inc. will continue to provide the necessary liquidity to the Company for the current year and onwards until the beginning of 2020. 

OpGen A/S has received written commitment from the ultimate parent company OpGen Inc.  

</e:DisclosureOfUncertaintiesRelatingToGoingConcern><e:InformationOnReportingClassOfEntity contextRef="c1" xml:lang="en">The annual report for OpGen A/S is presented in accordance with those regulations of the Danish Financial Statements Act concerning companies identified as class B enterprises.  

The accounting policies used are unchanged compared to last year, and the annual accounts are presented in Danish kroner (DKK).
</e:InformationOnReportingClassOfEntity><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfCostOfSales contextRef="c1" xml:lang="en">Costs of sales includes costs for the purchase of raw materials and consumables less discounts and changes in inventories.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfCostOfSales><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfExternalExpenses contextRef="c1" xml:lang="en">Other external costs comprise costs for distribution, sales, advertisement, administration, premises, loss on debtors, and operational leasing costs.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfExternalExpenses><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfEmployeeBenefitExpense contextRef="c1" xml:lang="en">Staff costs
Staff costs include salaries and wages including holiday allowances, pensions and other costs for social security, etc. for staff members. Staff costs are less public reimbursements.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfEmployeeBenefitExpense><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfFinanceIncomeAndExpenses contextRef="c1" xml:lang="en">Net financials
Net financials comprise interest, realised and unrealised capital gains and losses concerning financial assets and liabilities, amortisation of financial assets and liabilities, additions and reimbursements under the Danish tax prepayment scheme, etc. Financial income and expenses are recognised in the profit and loss account with the amounts that concerns the financial year.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfFinanceIncomeAndExpenses><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfTaxExpenses contextRef="c1" xml:lang="en">Tax of the results for the year
The tax for the year comprises the current tax for the year and the changes in deferred tax, and it is recognised in the profit and loss account with the share referring to the results for the year and directly in the equity with the share referring to entries directly on the equity.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfTaxExpenses><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfInventories contextRef="c1" xml:lang="en">Inventories
Inventories are measured at cost on basis of measured average prices. In case the net realisable value is lower than the cost, writedown takes place at this lower value.

Inventories are measured at cost on basis of the FIFO method. In case the net realisable value of the inventories is lower than the cost, writedown takes place to this lower value.

The cost for trade goods, raw materials, and consumables comprises the acquisition cost with the addition of the delivery costs.

The net realisable value for inventories is recognised as the market price with deduction of completion costs and selling costs. The net realisable value is determined taking into consideration the negotiability, obsolescence, and development of the expected market price.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfInventories><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfReceivables contextRef="c1" xml:lang="en">Debtors
Debtors are measured at amortised cost which usually corresponds to face value. In order to meet expected losses, writedown takes place at the net realisable value.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfReceivables><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfDeferredIncomeAssets contextRef="c1" xml:lang="en">Accrued income and deferred expenses
Accrued income and deferred expenses recognised under assets comprise incurred costs concerning the next financial year.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfDeferredIncomeAssets><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfCashAndCashEquivalents contextRef="c1" xml:lang="en">Available funds
Available funds comprise cash at bank.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfCashAndCashEquivalents><e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfLiabilitiesOtherThanProvisions contextRef="c1" xml:lang="en">Liabilities
Other liabilities are measured at amortised cost which usually corresponds to the nominal value.
</e:DescriptionOfMethodsOfRecognitionAndMeasurementBasisOfLiabilitiesOtherThanProvisions><!--Aktuelle periode enkelt selskab--><context id="c1"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period></context><!--Forrige periode enkelt selskab--><context id="c3"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2017-01-01</startDate><endDate>2017-12-31</endDate></period></context><!--Slutdato forrige periode enkelt selskab--><context id="c4"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2017-12-31</instant></period></context><!--Slutdato aktuelle periode enkelt selskab--><context id="c6"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2018-12-31</instant></period></context><!--BOARD1--><context id="c31"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:typedMember dimension="d:IdentificationOfMemberOfSupervisoryBoardDimension"><d:memberOfBoardIdentifier>1</d:memberOfBoardIdentifier></xbrldi:typedMember></scenario></context><!--BOARD2--><context id="c47"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:typedMember dimension="d:IdentificationOfMemberOfSupervisoryBoardDimension"><d:memberOfBoardIdentifier>2</d:memberOfBoardIdentifier></xbrldi:typedMember></scenario></context><!--BOARD3--><context id="c48"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:typedMember dimension="d:IdentificationOfMemberOfSupervisoryBoardDimension"><d:memberOfBoardIdentifier>3</d:memberOfBoardIdentifier></xbrldi:typedMember></scenario></context><!--CEO1--><context id="c70"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:typedMember dimension="d:IdentificationOfMemberOfExecutiveBoardDimension"><d:memberOfBoardIdentifier>1</d:memberOfBoardIdentifier></xbrldi:typedMember></scenario></context><!--REVISOR1--><context id="c87"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:typedMember dimension="d:IdentificationOfAuditorDimension"><d:auditorIdentifier>1</d:auditorIdentifier></xbrldi:typedMember></scenario></context><!--Overfoert resultat aktuel i aaret--><context id="c119"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:explicitMember dimension="e:ResultDistributionDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Overfoert resultat forrige i aaret--><context id="c120"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2017-01-01</startDate><endDate>2017-12-31</endDate></period><scenario><xbrldi:explicitMember dimension="e:ResultDistributionDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Virksomhedskapital aktuel primo--><context id="c177"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2018-01-01</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:ContributedCapitalMember</xbrldi:explicitMember></scenario></context><!--Virksomhedskapital aktuel ultimo--><context id="c179"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2018-12-31</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:ContributedCapitalMember</xbrldi:explicitMember></scenario></context><!--Overfort res aktuel primo--><context id="c195"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2018-01-01</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Overfort res aktuel i aaret--><context id="c196"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2018-01-01</startDate><endDate>2018-12-31</endDate></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Overfort res aktuel ultimo--><context id="c197"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2018-12-31</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Virksomhedskapital forrige EKprimo--><context id="c704"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2017-01-01</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:ContributedCapitalMember</xbrldi:explicitMember></scenario></context><!--Virksomhedskapital forrige EKultimo--><context id="c706"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2017-12-31</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:ContributedCapitalMember</xbrldi:explicitMember></scenario></context><!--Overfort res forrige EKprimo--><context id="c725"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2017-01-01</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Overfort res forrige EKi aaret--><context id="c726"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><startDate>2017-01-01</startDate><endDate>2017-12-31</endDate></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--Overfort res forrige EKultimo--><context id="c727"><entity><identifier scheme="http://www.dcca.dk/cvr">27913741</identifier></entity><period><instant>2017-12-31</instant></period><scenario><xbrldi:explicitMember dimension="e:ClassesOfEquityDimension">e:RetainedEarningsMember</xbrldi:explicitMember></scenario></context><!--DKK enere--><unit id="u5"><measure>iso4217:DKK</measure></unit><!--Antal--><unit id="u7"><measure>xbrli:pure</measure></unit></xbrl>