Bouygues SA — Earnings Release 2018

May 16, 2018

PRESS RELEASE

PARIS 16/05/2018

ALSTOM'S CONTRIBUTION TO BOUYGUES' NET PROFIT IN FIRST-QUARTER 2018

On 16 May 2018, Alstom reported its results for the financial year 2017/18 ended on 31 March 2018.

On the basis of this information, Alstom's contribution to Bouygues' net profit in first-quarter 2018 is €73 million¹ , versus a contribution of €45 million¹ in first-quarter 2017.

First-quarter 2018 sales and earnings for the Bouygues group will be reported on 17 May 2018 at 7.30am (CET).

INVESTORS AND ANALYSTS CONTACT: INVESTORS@bouygues.com • Tel.: +33 (0)1 44 20 10 79 PRESS CONTACT: presse@bouygues.com • Tel.: +33 (0)1 44 20 12 01

BOUYGUES SA • 32 avenue Hoche • F-75378 Paris CEDEX 08 • www.bouygues.com

¹ Before applying IFRS 15