Investor Presentaiton

Quality excellence drives customer confidence and satisfaction Design for Quality Gates Open DFQ Backlog - Total Year End || - 42% Q Delivery Quality to Customer # of Demerits/Unit - Avg Year - 67% Leg. AT Leg. AT + Leg. BT Pre Acq April 2021 March 2022 March 2023 Pre Acq April 2021 March 2022 March 2023 # of Surveys Customer Net Promoter Score NPS Score 350 9 300 ba 250 8.5 8 200 150 7.5 7 100 LENE 6.5 50 0 6 TREN MAYA 17/18 18/19 19/20 20/21 21/22 FY22/23 © ALSTOM SA 2023. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use, alter or disclosure to third parties, without express written authorisation from Alstom, is strictly prohibited. ALSTOM 10

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