Investor Presentaiton

Q1 2019 Highlights Q1 2019 results in line with expectations and on track to deliver FY 2019 Revenue EUR 480.6 million (underlying -3.1% (1) with Video tracking expectations) Sustained growth in Networks (+5.4% YOY) building on double-digit growth in 2018 Latest 03b satellites in service early Q3, paving the way for O3b mPOWER Focus on reshaping organisation around customers yielding results Flattening layers, common approach to Technology and Global Services ▲ Bringing together video infrastructure and services, to be completed by Q3 2019 Market-based C-band initiative progressing Ready to implement plan for clearing mid-band spectrum on FCC Report & Order Rapid deployment of 5G across the Continental U.S. while protecting essential services SES Credit: Arianespace SES 1) Comparative figures are restated at constant FX to neutralise currency variations. Underlying revenue excludes periodic revenue and other (disclosed separately) that are not directly related to or would distort the underlying business trends Investor presentation | May 2019 60

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