Notification of Transaction by a Closely Associated Person of a Director of Millicom International Cellular S.A.

NOTIFICATION OF TRANSACTION BY A CLOSELY ASSOCIATED PERSON OF A DIRECTOR OF MILLICOM TIGO

Stockholm, Sweden, March 17, 2023: Millicom, the international telecommunications company, has been notified that a closely associated person of a Director of the company has entered into a transaction.

On March 16, 2023, the closely associated person, [Name], acquired 10,000 shares of Millicom's Class A and Class B shares through a private sale. The transaction was carried out at a price of SEK 120 per share.

The Director in question is [Name], who is a member of the Board of Directors of Millicom. As a result of this transaction, [Name] now holds a total of 50,000 shares of Millicom's Class A and Class B shares.

Millicom has been notified of this transaction in accordance with the Swedish Financial Instruments Trading Act and the Millicom Code of Conduct. The company will continue to monitor the situation and provide updates as necessary.

About Millicom

Millicom is a leading international telecommunications company with operations in 12 countries in Africa, Asia, Latin America, and Eastern Europe. The company offers a range of telecommunications services, including mobile and fixed-line voice and data, broadband, and digital television. Millicom is listed on the NASDAQ OMX Stockholm exchange under the ticker symbol MIC.