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MILLICOM INTERNATIONAL CELLULAR SA

For the period ended Aug 6, 2026. Filed Aug 6, 2026.

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Aug 6, 2026 · Filed Aug 6, 2026

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Contents

Key Performance Indicators

The mobile business ended Q2 2026 with 55.8 million customers, up 33.6% year-on-year representing an increase of 14.0 million customers. This growth was primarily driven by the inclusion of Coltel and our operations in Ecuador and Uruguay. Coltel alone contributed 8.5 million mobile customers, including 5.5 million postpaid subscribers. Postpaid net additions totaled 8.2 million customers during the year. Mobile ARPU increased 18.9% year-on-year. Excluding the impact of M&A, the postpaid customer base increased by 0.9 million customers, supported by our continued focus on executing our pre-to-postpaid migration strategy.

At the end of Q2 2026, Millicom's fixed networks passed 22.1 million homes, up 8.4 million year-over-year. HFC and FTTH customer relationships increased 1.6 million while HFC/FTTH revenue-generating units ("RGU") grew by 2.8 million. These trends were mainly driven by the consolidation of our newly acquired operations. Excluding M&A, HFC/ FTTH RGUs would have declined by 202,000 for the year due to a reduction in fixed telephony connections. This decline was partially offset by an increase of 91,000 broadband internet connections.

Key Performance Indicators* (‘000)Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q2 2026 vs Q2 2025
Mobile customers55,77957,33549,31142,15841,76433.6%
Of which postpaid subscribers16,80516,54310,9198,8968,60395.3%
Mobile ARPU ($)7.16.76.86.26.018.9%
Homes passed22,05721,85313,76213,70813,61562.0%
Of which HFC/FTTH21,83621,63213,54113,48713,39463.0%
Customer relationships6,0666,1414,6044,5764,53333.8%
Of which HFC/FTTH5,6535,7324,1864,1464,08638.4%
HFC/FTTH revenue generating units10,82911,0828,0038,0148,01135.2%
Of which Broadband Internet5,4605,5534,0093,9683,90040.0%
Home ARPU ($)26.926.125.324.624.011.9%

** KPIs exclude our joint venture in Honduras, which is not consolidated in the Group figures. ARPU calculation excludes Coltel. During the three-month consolidation period, Coltel’s Mobile and Home ARPU were $7.1 and $27.1, respectively.*

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