CENTRICA PLC DISCLOSUREOther Disclosures

Business / Consolidation

The Group has a large number of related undertakings principally in the UK, US, Canada and EU. These are listed below. (a) Subsidiary undertakings Investments held directly by Centrica plc with 100% voting rights 31 December 2025 Principal activity Country of incorporation/ registered address key (i) Class of shares held Centrica Beta Holdings Limited (ii) Holding company United Kingdom A Ordinary shares Centrica Ireland Holdings Limited Holding company Republic of Ireland B Ordinary shares Investments held indirectly by Centrica plc with 100% voting rights 31 December 2025 Principal activity Country of incorporation/ registered address key (i) Class of shares held Accord Energy Ukraine Holdings ApS (iii) Holding company Denmark L Ordinary shares Accord Energy Ukraine LLC (iii) Energy services and wholesale energy trading Ukraine AJ Ordinary shares Ardrar Holdings Limited (iii) Holding company Republic of Ireland B Ordinary shares Ardrar Limited (iii) Professional referrals and scheduling Republic of Ireland B Ordinary shares Ardrar Technology Limited (iii) Intellectual property company Republic of Ireland B Ordinary shares Astrum Solar, Inc. Home and/or commercial services United States C Ordinary shares Bord Gáis Energy Limited Energy supply and power generation Republic of Ireland B Ordinary shares Bord Gáis Energy Trustees DAC Pension trustee company Republic of Ireland B Ordinary shares British Gas Finance Limited Vehicle leasing United Kingdom A Ordinary shares British Gas Insurance Limited Insurance provision United Kingdom A Ordinary shares British Gas Limited Energy supply United Kingdom A Ordinary shares British Gas New Heating Limited Electrical and gas installations United Kingdom A Ordinary shares British Gas Services (Commercial) Limited (ii) Non-trading United Kingdom A Ordinary shares British Gas Services Limited Home services United Kingdom A Ordinary shares British Gas Social Housing Limited Servicing and installation of heating systems United Kingdom A Ordinary shares British Gas Trading Limited Energy supply United Kingdom A Ordinary shares Caythorpe Gas Storage Limited Non-trading United Kingdom D Ordinary shares CBS Energy Assets Belgium B.V. Construction and operation of battery storage Belgium E Ordinary shares CBS Energy Storage Assets UK Limited Construction and operation of battery storage United Kingdom A Ordinary shares CBS Servi