Attached files

file filename
EX-32.1 - EX-32.1 - Mallinckrodt plcmnkexhibit321122520.htm
EX-31.2 - EX-31.2 - Mallinckrodt plcmnkexhibit312122520.htm
EX-31.1 - EX-31.1 - Mallinckrodt plcmnkexhibit311122520.htm
EX-24.1 - EX-24.1 - Mallinckrodt plcmnkexhibit241122520.htm
EX-23.1 - EX-23.1 - Mallinckrodt plcmnkexhibit231122520.htm
EX-10.30 - EX-10.30 - Mallinckrodt plcmnkexhibit1030122520.htm
EX-4.8 - EX-4.8 - Mallinckrodt plcmnkexhibit48122520.htm
10-K - 10-K - Mallinckrodt plcmnk-20201225.htm

Exhibit 21.1

SUBSIDIARIES OF MALLINCKRODT PLC

The following is a list of of subsidiaries of Mallinckrodt plc as of December 25, 2020:
Name of SubsidiaryJurisdiction of Incorporation/Organization
Acthar IP Unlimited CompanyIreland
Cache Holdings LimitedBermuda
Carnforth LimitedBermuda
Dritte CORSA Verwaltungsgesellschaft GmbHGermany
Ikaria Australia Pty LtdAustralia
Ikaria Canada Inc.Canada
IMC Exploration CompanyMaryland
Infacare Pharmaceutical CorporationDelaware
INO Therapeutics LLCDelaware
Ludlow LLCMassachusetts
MAK LLCDelaware
Mallinckrodt APAP LLCDelaware
Mallinckrodt ARD Finance LLCDelaware
Mallinckrodt ARD Holdings Inc.Delaware
Mallinckrodt ARD Holdings LimitedUnited Kingdom
Mallinckrodt ARD IP Unlimited CompanyIreland
Mallinckrodt ARD LLCCalifornia
Mallinckrodt Brand Pharmaceuticals LLCDelaware
Mallinckrodt Buckingham Unlimited CompanyIreland
Mallinckrodt Canada Cooperatie U.A.Netherlands
Mallinckrodt Canada ULCBritish Columbia
Mallinckrodt CB LLCDelaware
Mallinckrodt Chemical Holdings (U.K.) LimitedUnited Kingdom
Mallinckrodt Chemical LimitedUnited Kingdom
Mallinckrodt Critical Care Finance LLCDelaware
Mallinckrodt Enterprises Holdings, Inc.California
Mallinckrodt Enterprises LLCDelaware
Mallinckrodt Enterprises UK LimitedUnited Kingdom
Mallinckrodt Equinox Finance LLCDelaware
Mallinckrodt Equinox LimitedUnited Kingdom
Mallinckrodt Finance Management Ireland LimitedIreland
Mallinckrodt Group S.à r.l.Luxembourg
Mallinckrodt Group S.à r.l., Luxembourg (LU) Schaffhausen BranchSwitzerland
Mallinckrodt Holdings GmbHSwitzerland
Mallinckrodt Hospital Products Inc.Delaware
Mallinckrodt Hospital Products IP Unlimited CompanyIreland
Mallinckrodt International Finance SALuxembourg
Mallinckrodt International Holdings S. à r.l.Luxembourg
Mallinckrodt IP Unlimited CompanyIreland
Mallinckrodt LLCDelaware
Mallinckrodt Lux IP S.à r.l.Luxembourg
Mallinckrodt Manufacturing LLCDelaware
Mallinckrodt Medical Holdings (UK) LimitedUnited Kingdom
Mallinckrodt Medical Holdings (UK) Limited, Zweigniederlassung Deutschland (the German Branch)Germany
Mallinckrodt Netherlands B.V.Netherlands
Mallinckrodt Petten Holdings B.V.Netherlands
Mallinckrodt Pharma IP Trading Unlimited CompanyIreland



Mallinckrodt Pharma K.K.Japan
Mallinckrodt Pharmaceuticals Ireland LimitedIreland
Mallinckrodt Pharmaceuticals LimitedUnited Kingdom
Mallinckrodt Quincy S.à r.l.Luxembourg
Mallinckrodt SAG Holdings GmbHSwitzerland
Mallinckrodt Securitization S.à r.l.Luxembourg
Mallinckrodt UK Finance LLPUnited Kingdom
Mallinckrodt UK LtdUnited Kingdom
Mallinckrodt US Holdings LLCDelaware
Mallinckrodt US Pool LLCNevada
Mallinckrodt Veterinary, Inc.Delaware
Mallinckrodt Windsor Ireland Finance Unlimited CompanyIreland
Mallinckrodt Windsor S.à r.l.Luxembourg
MCCH LLCDelaware
MEH, Inc.Nevada
MHP Finance LLCDelaware
MKG Medical UK LtdUnited Kingdom
MNK 2011 LLCDelaware
Montjeu LimitedIreland
MUSHI UK Holdings LimitedUnited Kingdom
OCERA Therapeutics, Inc.Delaware
Petten Holdings Inc.Delaware
Profibrix B.V.Netherlands
Questcor International LimitedIreland
Sonorant Therapeutics LimitedIreland
SpecGx Holdings LLCNew York
SpecGx LLCDelaware
ST 2020 LLCDelaware
ST Operations LLCDelaware
ST Shared Services LLCDelaware
ST US Holdings LLCNevada
ST US Pool LLCDelaware
Stratatech CorporationDelaware
Sucampo Finance Inc.Delaware
Sucampo GmbHSwitzerland
Sucampo Holdings Inc.Delaware
Sucampo International Holdings LimitedUnited Kingdom
Sucampo Pharma Americas LLCDelaware
Sucampo Pharma, LLCJapan
Sucampo Pharmaceuticals, Inc.Delaware
Therakos (Belgium) SPRLBelgium
Therakos (Canada) CompanyNova Scotia
Therakos (France) SASFrance
Therakos (Italia) S.r.l.Italy
Therakos (UK) Limited, Dutch BranchNetherlands
Therakos (UK), Limited, Sucursal en EspanaSpain
Therakos (UK), LtdUnited Kingdom
Therakos (UK), Ltd (Prywatna Spólka Z Ograniczona Odpowiedzialnoscia) Oddzial W PolscePoland
Therakos (UK), Ltd, Sweden FilialSweden
Therakos EMEA LimitedIreland
Therakos Europe LimitedIreland
Therakos Germany GmbHGermany
Therakos, Inc.Florida
Vtesse LLCDelaware



WebsterGx Holdco LLCNew York