News Release
                    
                Mallinckrodt plc Begins Trading on New York Stock Exchange
                
      Spin-off from Covidien plc creates new global specialty
      pharmaceuticals company
    
    DUBLIN--(BUSINESS WIRE)--Jul. 1, 2013--
      Mallinckrodt plc (NYSE: MNK) begins “regular-way” trading today on the
      New York Stock Exchange as an independent, global specialty
      pharmaceuticals company under the symbol MNK. Mallinckrodt completed its
      previously announced separation from Covidien plc (NYSE: COV) in a
      spin-off to shareholders on Friday, June 28.
    
      “Today marks a significant new chapter in Mallinckrodt’s proud history,”
      said Mark Trudeau, President and CEO of Mallinckrodt. “We are well
      positioned to leverage the skills and capabilities that have been
      developed over 145 years of pharmaceuticals industry experience. There
      are many benefits to our being independent that will accrue to
      Mallinckrodt’s shareholders, customers and employees going forward. We
      are excited about the growth opportunities that lie ahead.”
    
      Covidien announced in December 2011 that it planned to spin off its
      pharmaceuticals business to its shareholders. While both companies are
      leaders in their respective industries, each has different long-term
      objectives – and, separately, each has the ability to improve their
      independent strategies and invest in the opportunities that make the
      most sense for their businesses.
    
      By leveraging its core strengths in formulation, development,
      manufacturing, distribution and commercialization in attractive markets
      such as controlled substances, Mallinckrodt believes it can expand
      overall sales by accelerating growth in its Specialty Pharmaceuticals
      segment.
    
      The distribution of Mallinckrodt ordinary shares took place on June 28,
      2013. In the distribution, Mallinckrodt issued one ordinary share for
      every eight Covidien ordinary shares held as of the close of business on
      June 19, 2013, the date of record for the distribution.
    
      ABOUT MALLINCKRODT
    
      Mallinckrodt is a leading global specialty pharmaceuticals business that
      develops, manufactures, markets and distributes specialty pharmaceutical
      products and medical imaging agents with the highest quality standards
      and care. The company’s Specialty Pharmaceuticals segment includes
      branded and generic drugs, and the Global Medical Imaging segment
      includes contrast media and nuclear imaging agents. Mallinckrodt has
      approximately 5,500 employees worldwide with direct sales in roughly 50
      countries and distribution in approximately 40 countries. The company’s
      2012 revenue totaled $2.1 billion. To learn more about Mallinckrodt,
      visit www.mallinckrodt.com.
    
      FORWARD-LOOKING STATEMENTS
    
      Any statements contained in this communication that do not describe
      historical facts may constitute forward-looking statements as that term
      is defined in the Private Securities Litigation Reform Act of 1995. Such
      forward-looking statements include, but are not limited to, statements
      about future financial condition and operating results, economic,
      business, competitive and/or regulatory factors affecting our business,
      and the effect of the separation of Mallinckrodt’s business from
      Covidien. Any forward-looking statements contained herein are based on
      our management's current beliefs and expectations, but are subject to a
      number of risks, uncertainties and changes in circumstances, which may
      cause actual results or Company actions to differ materially from what
      is expressed or implied by these statements. The factors that could
      cause actual future results to differ materially from current
      expectations include, but are not limited to, our ability to receive
      procurement and production quotas granted by the U.S. Drug Enforcement
      Administration, our ability to obtain and/or timely transport
      molybdenum-99 to our technetium-99m generator production facilities,
      customer concentration, cost-containment efforts of customers,
      purchasing groups, third-party payors and governmental organizations,
      our ability to successfully develop or commercialize new products, our
      ability to protect intellectual property rights, competition, our
      ability to integrate acquisitions of technology, products and
      businesses, product liability losses and other litigation liability, the
      reimbursement practices of a small number of large public or private
      issuers, complex reporting and payment obligation under healthcare
      rebate programs, changes in laws and regulations, conducting business
      internationally, foreign exchange rates, material health, safety and
      environmental liabilities, litigation and violations and information
      technology infrastructure. These and other factors are identified
      and described in more detail in the “Risk Factors” section of the Form
      10 Registration Statement, as amended. We disclaim any obligation to
      update these forward-looking statements other than as required by law.
    
    

Source: Mallinckrodt plc
      Mallinckrodt plc
Lynn Phillips, 314-654-3263
Manager, Media
      Relations
lynn.phillips@mallinckrodt.com
or
Meredith
      Fischer, 314-654-6595
Senior Vice President, Communications
meredith.fischer@mallinckrodt.com
or
John
      Moten, 314-654-6650
Vice President, Investor Relations
john.moten@mallinckrodt.com