Millicom (Tigo) notice of third quarter 2023 results and video conference

Luxembourg, October 18, 2023 – Millicom expects to announce its third quarter 2023 results on October 26, 2023, via a press release.

Millicom is planning to host a video conference for the global financial community on October 26, 2023, at 14:00 (Stockholm) / 13:00 (London) / 08:00 (Miami).

Registration for the interactive event is required at the following link. After registering, you will receive a confirmation email containing details about joining the video conference. Participants who wish to ask a question during the live event must notify the Investor Relations team via email to investors@millicom.com after the start of the event.

Participants may also join the conference in listen-only mode by dialing any of the following numbers and entering the Webinar ID: 878 9840 3093

US: +1 929 205 6099                                                   Sweden: +46 850 539 728

UK: +44 330 088 5830                                                Luxembourg: +352 342 080 9265

Additional international numbers are available at the following link. Accompanying slides and a replay of the event will be available on the Millicom investors website.

For further information, please contact:

About Millicom

Millicom (NASDAQ U.S.: TIGO, Nasdaq Stockholm: TIGO_SDB) is a leading provider of fixed and mobile telecommunications services in Latin America. Through our TIGO® and Tigo Business® brands, we provide a wide range of digital services and products, including TIGO Money for mobile financial services, TIGO Sports for local entertainment, TIGO ONEtv for pay TV, high-speed data, voice, and business-to-business solutions such as cloud and security. As of June 30, 2023, Millicom, including its Honduras Joint Venture, employed approximately 19,300 people and provided mobile and fiber-cable services through its digital highways to more than 45 million customers, with a fiber- cable footprint over 13 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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• PR_Notice of Q3 2023