Millicom (Tigo) to host investor day on February 14

Millicom (Tigo) to host investor day on February 14

Luxembourg, December 17, 2021 – Millicom announces that it will host an investor day on Monday, February 14^th. In light of COVID restrictions, attendees may join virtually or in person in Miami, Florida.

Program and participation details will be provided closer to the date of the event.

For further information, please contact:

Press: Vivian Kobeh, Director Corporate Communications +1-786-628-5300 press@millicom.com Yocasta Valdez, Group Manager Digital Media & Communications +1-305-929-5417 press@millicom.com

Investors: Michel Morin, VP Investor Relations +1-786-628-5270 investors@millicom.com Sarah Inmon, Director Investor Relations +1-786-628-5303 investors@millicom.com

About Millicom

Millicom (NASDAQ U.S.: TIGO, Nasdaq Stockholm: TIGO_SDB) is a leading provider of fixed and mobile services dedicated to emerging markets in Latin America and Africa. Millicom sets the pace when it comes to providing high- speed broadband and innovation around The Digital Lifestyle® services through its principal brand, TIGO. As of December 31, 2020, Millicom operating subsidiaries and joint ventures employed more than 21,000 people and provided mobile services to approximately 55 million customers, with a cable footprint of more than 12 million homes passed. Founded in 1990, Millicom International Cellular S.A. is headquartered in Luxembourg. For more information, visit: millicom.com. Connect with Millicom on Twitter, Instagram, Facebook and LinkedIn.

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• Press Release_Millicom (Tigo) to host investor day on February 14_121721