MIKAEL GRAHNE STEPS DOWN AND HANS-HOLGER ALBRECHT APPOINTED AS MILLICOM PRESIDENT & CEO

Stockholm, July 31 2012 – Millicom International Cellular S.A. (“Millicom”)
(Stockholmsbörsen: MIC) today announces that it has appointed Hans-Holger
Albrecht as President and CEO of Millicom with effect from October 31 2012. Hans
-Holger succeeds Mikael Grahne, who has notified the Board of Directors of his
intention to step down after almost four years as President and CEO and eleven
years with the company. Hans-Holger Albrecht is currently the President and CEO
of Modern Times Group MTG AB (“MTG”), the Nasdaq OMX listed international
entertainment broadcasting group, and will join Millicom on September 16 2012.
Hans-Holger has also been a member of the Millicom Board of Directors since May
2010 and will step down from this role with immediate effect.

Mikael Grahne has served as Millicom’s President and CEO since March 2009. He
joined Millicom in February 2002 as Chief Operating Officer from his previous
position as President of Seagram Latin America. Prior to joining Seagram, Mikael
was Regional President for a division in the EMEA region of PepsiCo and also
held various senior management positions with Procter & Gamble.

Hans-Holger Albrecht has served as MTG President and CEO since August 2000,
prior to which he was Chief Operating Officer of MTG from May 2000. Hans-Holger
joined MTG in 1997 and held various positions including Head of the Group’s pay
-TV operations and then President of Viasat Broadcasting. Hans-Holger has been
co-Chairman of the Board of Directors of CTC Media, Inc., of which MTG is the
largest shareholder, since 2003 and is also a member of the Board of Directors
of Millicom and of the International Academy of Television Arts & Sciences. Hans
-Holger has presided over MTG’s rapid expansion and development into an industry
leading broadcaster with a unique geographical reach, balanced mix of pay and
free-TV revenues, and strong financial position. Under his leadership, MTG’s
sales have tripled since 2000 to SEK 13.5 billion in 2011, as MTG expanded from
its Nordic base into Central & Eastern Europe and Africa, and pioneered new TV
distribution markets. MTG’s Viasat Broadcasting TV channels are now available in
36 countries across four continents. Please visit www.mtg.se for more
information.

Allen Sangines-Krause, Chairman of the Millicom Board of Directors, commented:
“Hans-Holger is the perfect choice to take on the CEO role at Millicom as we
build on our success to date. Not only does Hans-Holger have the proven
international management expertise and track record to take Millicom into the
next phase of its development, but the business cultures of MTG and Millicom are
very similar.”

“The Board and I would also like to thank Mikael on behalf of everyone at
Millicom for his dedicated leadership as Chief Executive, and his substantial
contribution to Millicom’s evolution over what will be almost 11 years. He has
successfully led the Company through a period of significant transition and
delivered consistently high growth and profitability levels, which have enabled
us to reinvest and increase shareholder returns at the same time. He has been
key to the deployment of Millicom´s operational strategies and the development
of the Tigo brand. The fact that Millicom is today an even more focused and
established emerging markets telecommunications service provider is due in no
small part to his efforts. We wish him the very best for the future.”

Hans-Holger Albrecht commented: “This is a great opportunity with a great
company that I know well through my position on the Board and my working
relationship with the Company in the development of MTG’s operations in Africa,
and as a sister company within the Kinnevik sphere. I look forward to working
with the talented and experienced management team to continue the Company’s
rapid growth and expansion.”

Mikael Grahne commented: “I am privileged to have worked with the best people in
the business – our Tigo people. Together, we have built a high growth, consumer
focused and value generative business around our mobile products and services.
It has been a fantastic journey, and I am confident that it will continue
successfully into the future under Hans-Holger’s leadership.”
Contacts

Chairman of the Board of Directors
Allen Sangines-Krause

Chief Executive Officer
Mikael Grahne

Investor Relations
Justine Dimovic
Tel: +352 691 750 479

Emily Hunt
Tel: +44 7779 018 539

Visit our web site at www.millicom.com
About Millicom

Millicom International Cellular S.A. is a global telecommunications group with
mobile telephony operations in 13 countries in Latin America and Africa. It also
operates various combinations of fixed telephony, cable and broadband businesses
in five countries in Central America. The Group’s mobile operations have a
combined population under license of approximately 270 million people.

This press release may contain certain “forward-looking statements” with respect
to Millicom’s expectations and plans, strategy, management’s objectives, future
performance, costs, revenues, earnings and other trend information.  It is
important to note that Millicom’s actual results in the future could differ
materially from those anticipated in forward-looking statements depending on
various important factors. Please refer to the documents that Millicom has filed
with the U.S. Securities and Exchange Commission under the U.S. Securities
Exchange Act of 1934, as amended, including Millicom’s most recent annual report
on Form 20-F, for a discussion of certain of these factors.

All forward-looking statements in this press release are based on information
available to Millicom on the date hereof.  All written or oral forward-looking
statements attributable to Millicom International Cellular S.A., and Millicom
International Cellular S.A. employees or representatives acting on Millicom’s
behalf are expressly qualified in their entirety by the factors referred to
above.  Millicom does not intend to update these forward-looking statements.