News Release
                    
                Mallinckrodt plc to Report First Quarter Results on Thursday, February 6, 2014
                    DUBLIN--(BUSINESS WIRE)--Jan. 7, 2014--
      Mallinckrodt
      plc (NYSE: MNK) will report fiscal first quarter 2014 results on
      February 6, 2014. The company will hold a conference call for investors
      beginning at 8:30am U.S. Eastern Time. The call can be accessed in three
      ways.
    
      - 
        At the Mallinckrodt website: http://mallinckrodt.com/investor_relations.aspx
      
- 
        By telephone: For both “listen-only” participants and those who wish
        to take part in the question-and-answer portion of the call, the
        telephone dial-in number in the U.S. is 866-318-8614. For participants
        outside the U.S., the dial-in number is 617-399-5133. The access code
        for all callers is 81312057.
      
- 
        Through an audio replay: A replay of the call will be available
        beginning at 12:30pm U.S. Eastern Time on February 6, 2014, and ending
        at 11:59pm U.S. Eastern Time on February 13, 2014. The dial-in number
        for U.S. participants is 888-286-8010. For participants outside the
        U.S., the replay dial-in number is 617- 801-6888. The replay access
        code for all callers is 83253336.
      
      ABOUT MALLINCKRODT:
    
      Mallinckrodt is a global specialty pharmaceutical and medical imaging
      business that develops, manufactures, markets and distributes specialty
      pharmaceutical products and medical imaging agents. The company’s
      Specialty Pharmaceuticals segment includes branded and generic drugs and
      active pharmaceutical ingredients, and the Global Medical Imaging
      segment includes contrast media and nuclear imaging agents. Mallinckrodt
      has approximately 5,500 employees worldwide and a commercial presence in
      roughly 70 countries. The company’s fiscal 2013 revenue totaled $2.2
      billion. To learn more about Mallinckrodt, visit www.mallinckrodt.com.
    
    

Source: Mallinckrodt
      Mallinckrodt
John Moten, 314-654-6650
Vice President, Investor
      Relations
john.moten@mallinckrodt.com
or
Lynn
      Phillips, 314-654-3263
Manager, Media Relations
lynn.phillips@mallinckrodt.com
or
Meredith
      Fischer, 314-654-3318
Senior Vice President, Communications
meredith.fischer@mallinckrodt.com