Milan, 20 June 2018 – Under the buyback program of treasury shares referred to Art. 5 of the Commission Delegated Regulation (EU) of 8 March 2016 no. 596/2014 (the “MAR”), announced to the market on 12 June 2018 and launched on 14 June 2018 for a maximum number of 1,200,000 ordinary shares (the “Program”) servicing the Second Cycle (2017) of the "2016-2018 Employee Share Ownership Plan dedicated to the Employees of Maire Tecnimont Group” approved by the Ordinary Shareholders’ Meeting held on 27 April 2016 (the “Program”), Maire Tecnimont S.p.A. (the “Company” or “Maire Tecnimont”) announces – according to the provision and for the purpose of Article 2 paragraph 3  of the Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016 (the “1052 EU Regulation”) – to have acquired on the Telematic Stock Exchange Market (MTA) organized and managed by Borsa Italiana S.p.A., in the period from 14 June 2018 through 19 June 2018 inclusive, total no. 500,000of treasury shares (corresponding to 0.15% of the total number of ordinary shares), at a weighted average price of Euro 4.174 for a total counter-value of Euro 2,087,182.15.

On the basis of information provided by Banca IMI S.p.A., the authorized intermediary in charge of carrying out the buyback mentioned in the present press release, here below is a summary of the daily operations, in aggregate form:

In accordance with the provisions of Article 2 paragraph 3 of the UE Regulation 1052, attached to this press release, information of the daily buying-in operations carried out in the above-mentioned period is indicated in detail.

This information is also published on the Company’s website, www.mairetecnimont.com (Section “Investors” – “Press Release” – “Press Release Buy Back”) for a five-year period.

On 19 June 2018, the treasury shares held by the Company amount to no. 516,248.

Maire Tecnimont SpA

Maire Tecnimont S.p.A. is a company listed with the Milan stock exchange. It heads an industrial group (the Maire Tecnimont Group) that leads the international Engineering & Construction (E&C), Technology & Licensing and Energy Business Development & Ventures markets, with specific competences in plants, particularly in the hydrocarbons segment (Oil & Gas Refining, Petrochemicals and Fertilizers), as well as in Power Generation and Infrastructures. The Maire Tecnimont Group operates in approximately 40 different countries, numbering around 50 operative companies and a workforce of more than 5,500 employees, along with approximately 3,000 additional Electrical & Instrumentation professionals. For more information: www.mairetecnimont.com.