MIC Launches GSM Services In Lao PDR

MIC LAUNCHES GSM SERVICES IN LAO PDR New York, London and Luxembourg - April 25, 2003 - Millicom International Cellular S.A. (Nasdaq Stock Market: MICC), the global telecommunications investor, announced today that it launched GSM services in the Lao People's Democratic Republic (Laos) on April 22, 2003, under the Tango brand name. Tango is the fourth entrant to the GSM market in Laos and it is operating a pre-paid service for GSM 900 and 1800 frequencies under a 20- year license. Distribution will take place through a dealer network of more than 100 outlets. Tango has superior quality coverage in the capital Vientiane and in the second largest town of Savannakhet and coverage of the main tourist area of Luang Prabang is expected to follow in the second quarter of 2003. Value-added services offered include SMS and Tango is the first network to offer International roaming to visitors from a wide range of countries. Marc Beuls, President and CEO of Millicom International Cellular commented: "The launch of services in Laos bolsters our cellular offering in South East Asia and will facilitate the development of regional synergies. The Tango service is targeted towards the under 30 age-group which comprises 68% of the population of Laos and Millicom is confident of building a significant market share." Millicom International Cellular S.A. is a global telecommunications investor with cellular operations in Asia, Latin America and Africa. It currently has a total of 16 cellular operations and licenses in 15 countries. The Group's cellular operations have a combined population under license (excluding Tele2) of approximately 382 million people. In addition, MIC provides high-speed wireless data services in five countries. MIC also has a 6.8% interest in Tele2 AB, the leading alternative pan-European telecommunications company offering fixed and mobile telephony, data network and Internet services to 17.7 million customers in 22 countries. The Company's shares are traded on the Luxembourg Bourse and the Nasdaq Stock Market under the symbol MICC. 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., any Millicom International Cellular S.A members or persons 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. CONTACTS: Marc Beuls Telephone: +352 27 759 101 President and Chief Executive Officer Millicom International Cellular S.A., Luxembourg Andrew Best Telephone: +44 20 7321 5022 Investor Relations Shared Value Ltd, London Visit our web site at http://www.millicom.com ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2003/04/25/20030425BIT00890/wkr0001.doc http://www.waymaker.net/bitonline/2003/04/25/20030425BIT00890/wkr0002.pdf

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Millicom International Cellular S.A. is a global telecommunications group with mobile telephony operations in 14 countries in Latin America, Africa and Asia. It also operates cable and broadband businesses in five countries in Central America. The Group’s mobile operations have a combined population under license of approximately 267 million people.