2005 SECOND QUARTER RESULTS CONFERENCE CALL

MONDAY, 25 JULY 2005 10 AM (ET) / 3 PM (UK) / 4 PM (CET) Host: Marc Beuls – President and Chief Executive Officer Millicom International Cellular S.A. will announce its financial results for the second quarter, 2005 on Monday, 25th July. The company will host a conference call for the global financial community at 10 AM (ET) / 3 PM (UK) / 4 PM (CET). The conference call will be webcast in listen-only mode on Millicom’s website at www.millicom.com. To participate in the conference call, please register at http://www.sharedvalue.net/millicom/Q205 The dial-in number to join the conference call will be available upon registration. You may also register by filling out the information attached and returning it by fax to Shared Value at +44 (0)20 7321 5020 or contact Shared Value at +44 (0)20 7321 5010 for further details. 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 of approximately 332 million people.