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September 10, 2015 8:00 am ET

Online Report Demonstrates Commitment to Operating as a Responsible Business and Highlights Progress in Addressing Global Health and Development Challenges

Merck (NYSE:MRK), known as MSD outside the United States and Canada,
today issued its 2014
global corporate responsibility report, which provides an overview
of its priorities, programs and performance in the areas of Access to
Health, Environmental Sustainability, Employees and Ethics &
Transparency.

With partners around the world, Merck is pursuing opportunities where
the need is great and its resources and expertise can have the most
impact. Highlights from the 2014 report include:

• Developing breakthrough treatments and partnerships to combat Ebola,
  cancer, hepatitis C and other unmet medical needs
• Expanding global access to more than 30 medicines to reach at-need
  communities
• Improving the quality of maternal healthcare for millions of women
  through Merck
  for Mothers and its partners in more than 30 countries
• Reducing water use by 20 percent since 2009, and emissions of
  greenhouse gases by 12 percent since 2012, helping to preserve and
  protect our environment
• Pairing employees through our Merck Fellowship for Global Health with
  non-profit organizations for three-month, field-based, pro bono
  assignments that allow organizations to significantly expand their
  reach and capacity by leveraging employees’ business expertise
• Receiving the Top Company for Employee Resource Groups award from
  DiversityInc for innovation in driving business performance through
  the Merck Employee Business Resource Groups

“Corporate responsibility is integral to the fabric of our company and
reflected in every aspect of our business,” said Kenneth C. Frazier,
chairman and chief executive officer, Merck. “Our mission to advance
innovative solutions that improve and save lives is central to this
long-standing commitment, which recognizes that our success is
contingent upon the mutually reinforcing value that we create with our
communities and society.”

Merck continues to use several external guidelines and measurement
frameworks to inform the scope of its reporting, including the Global
Reporting Initiative, the Millennium Development Goals, the Access to
Medicine Index and the United Nations Global Compact.

Visit www.merckresponsibility.com
for the comprehensive report.

Read the executive summary at www.merckcr.com.

About Merck

Today’s Merck is a global health care leader working to help the world
be well. Merck is known as MSD outside the United States and Canada.
Through our prescription medicines, vaccines, biologic therapies, and
animal health products, we work with customers and operate in more than
140 countries to deliver innovative health solutions. We also
demonstrate our commitment to increasing access to health care through
far-reaching policies, programs and partnerships. For more information,
visit www.merck.com
and connect with us on Twitter,
Facebook
and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the
“company”) includes “forward-looking statements” within the meaning of
the safe harbor provisions of the U.S. Private Securities Litigation
Reform Act of 1995. These statements are based upon the current beliefs
and expectations of the company’s management and are subject to
significant risks and uncertainties. If underlying assumptions prove
inaccurate or risks or uncertainties materialize, actual results may
differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry
conditions and competition; general economic factors, including interest
rate and currency exchange rate fluctuations; the impact of
pharmaceutical industry regulation and health care legislation in the
United States and internationally; global trends toward health care cost
containment; technological advances, new products and patents attained
by competitors; challenges inherent in new product development,
including obtaining regulatory approval; the company’s ability to
accurately predict future market conditions; manufacturing difficulties
or delays; financial instability of international economies and
sovereign risk; dependence on the effectiveness of the company’s patents
and other protections for innovative products; and the exposure to
litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any
forward-looking statement, whether as a result of new information,
future events or otherwise. Additional factors that could cause results
to differ materially from those described in the forward-looking
statements can be found in the company’s 2014 Annual Report on Form 10-K
and the company’s other filings with the Securities and Exchange
Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

Merck
Media:
Lainie Keller, 908-236-5036
or
Investors:
Teri Loxam, 908-740-1986
or
Justin Holko, 908-740-1879