News Release
                    
                Mallinckrodt plc Announces Annual Shareholder Meeting Date
                    DUBLIN--(BUSINESS WIRE)--Nov. 21, 2013--
      Mallinckrodt
      plc (NYSE: MNK) today announced that its Board of Directors has set
      Thursday, March 20, 2014 as the date for its annual general meeting of
      shareholders. The meeting will be held at 3:00 pm, local time at the
      Conrad Hilton Hotel, Earlsfort Terrace, Dublin 2, Ireland. Shareholders
      of record at the close of business on January 10, 2014, are entitled to
      receive notice of the meeting and will be eligible to vote.
    
      About Mallinckrodt
    
      Mallinckrodt is a global specialty pharmaceutical 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 commercial presence in
      roughly 70 countries. The company’s 2013 revenue totalled $2.2 billion.
      To learn more about Mallinckrodt, visit www.mallinckrodt.com.
    
    

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