MILLICOM INTERNATIONAL CELLULAR S.A. ANNOUNCES SUBSCRIBER GROWTH FOR THE SECOND QUARTER OF 2003

MILLICOM INTERNATIONAL CELLULAR S.A. ANNOUNCES SUBSCRIBER GROWTH FOR THE SECOND QUARTER OF 2003 · 28% annual growth in total subscribers to 4.5 million* · 25% annual growth in proportional subscribers to 3.1 million* · Best ever quarterly subscriber additions recorded in Asia New York and Luxembourg -- July 9, 2003 -- Millicom International Cellular S.A. (MIC) (Nasdaq Stock Market: MICC), the global telecommunications investor, announced today that in the second quarter of 2003 its worldwide operations in Asia, Latin America* and Africa added 223,121 net new cellular subscribers, resulting in an increase of over 5% from the total subscribers recorded at March 31 2003. On a proportional basis, 121,352 subscribers were added. At June 30, 2003, MIC's worldwide cellular subscriber base* increased by 28% to 4,471,835 cellular subscribers from 3,483,573 as at June 30, 2002. Particularly significant percentage increases were recorded in Ghana, Cambodia, Senegal and Vietnam. Sanbao Telecom recorded best ever net additions, adding 218,237 subscribers in the quarter, whilst MIC Africa recorded its best quarterly result for 2 years, adding 20,955 subscribers. Subscriber numbers for MIC Latin America were lower than for the previous quarter due to the removal of inactive, non-revenue generating subscribers in South America. At June 30, 2003, MIC had 3,083,955 proportional cellular subscribers*, an increase of 25% from the 2,472,960 proportional subscribers reported at June 30, 2002. Cellular Operations (i) Proportional Proportional Annua Total Total Annua (ii) (ii) lized Subs at Subs at lized Subs at Subs at Incre June 30, June 30, Incre June 30, June 30, ase 2003 2002 ase 2003 2002 Asia 1,444,201 1,038,880 39% 2,328,731 1,607,647 45% Latin 1,393,363 1,255,495 11% 1,798,128 1,597,531 13% America* Africa 246,391 178,585 38% 344,976 278,395 24% Total 3,083,955 2,472,960 25% 4,471,835 3,483,573 28% Cellular Ops* (i) All numbers and comparatives exclude divested operations (ii) Proportional subscribers are calculated as the sum of MIC's percentage ownership of subscribers in each operation. * Excluding El Salvador Within the 3,083,955 proportional cellular subscribers* reported at the end of the second quarter, 2,764,099 were pre-paid customers, representing a 31% increase on the 2,110,002 proportional prepaid subscribers* recorded at the end of June 2002. Pre-paid subscribers currently represent 90% of gross reported proportional cellular subscribers. 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 6.0% 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 our expectations and plans, strategy, management's objectives, future performance, costs, revenues, earnings and other trend information. It is important to note that our 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 we have filed with the U.S. Securities and Exchange Commission under the U.S. Securities Exchange Act of 1934, as amended, including our 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 us 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 our behalf are expressly qualified in their entirety by the factors referred to above. We do 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 (0) 20 7321 5022 Shared Value Ltd, London Visit MIC's homepage 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/2003/07/09/20030709BIT00290/wkr0001.doc http://www.waymaker.net/bitonline/2003/07/09/20030709BIT00290/wkr0002.pdf