Centrica Results Presentation Deck

H1 2020 adjusted operating profit Small Business Energy¹ & Business Services into British Gas Period ended 30 June (£m) Previous segments UK Home - energy UK Home services Centrica Home Solutions Total UKHS and CHS Ireland Energy Marketing & Trading UK Business Centrica Business Solutions Total UKB and CBS Upstream North America Home North America Business Total North America Group adjusted operating profit Figures may not add down due to rounding. 1. New segmentation changes since Prelims 2020 20 Interim Results 2021 2020 as reported 93 136 (29) 107 30 115 (39) (34) (73) 19 99 (47) 52 343 (6) (4) (4) 10 10 Metering¹ 5 (5) (5) Re-allocated corporate costs (14) (4) (4) (1) (4) (4) (4) 27 2020 restated 78 94 29 111 (67) 19 79 343 centrica New segments British Gas Energy British Gas Services & Solutions Bord Gáis Energy Energy Marketing & Trading Centrica Business Solutions Upstream Discontinued Operations

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