Dec 4 2004

Millicom International Cellular S.A. (``Millicom") (Nasdaq Stock Market: MICC, Stockholmsborsen and Luxembourg Stock Exchange: MIC), announces that it has won a tender for a 10 year license to operate a GSM 900 wireless telephony network in the Republic of Chad, Central Africa. The license terms and conditions will be finalized in negotiations with the regulator in the coming months.

Chad has a population of 8.3 million people, with almost 67% of the population below the age of 25 and mobile penetration of 1.4%. Millicom will provide coverage in a number of cities including the capital city N'Djamena.

Marc Beuls, President and CEO of Millicom International Cellular S.A. said: ``We are delighted to have won the tender for this second license in Chad in line with our strategy to widen our portfolio of countries in Africa and enhance synergies in the region. Chad is at an early stage in the development of its telecoms infrastructure and we look forward to providing a range of services at competitive prices in this market from 2005 onwards."

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 387 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., 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.