• The overall amount of €15,277,500 is equal to 5% of the reserved share capital post-increase, at a price of €9.00 per share
• ARDECO intends also to participate in the rights issue by underwriting the option rights it is entitled to exercise for a maximum amount of approximately €6,736,000

Milan, 11 June 2013 –Maire Tecnimont S.p.A. informs that, on today’s date, Arab Development Establishment (“ARDECO”) has underwritten and paid in the indivisible capital increase against payment, for an overall amount, including share premium, equal to €15,277,500, reserved to it and, consequently, with exclusion of the option right pursuant to article 2441, section 4, paragraph 2 of the Italian Civil Code, resolved upon by Maire Tecnimont S.p.A.’s Extraordinary Shareholders’ Meeting of 6 June 2013.

ARDECO is one of the most diversified players in the Emirate of Abu Dhabi, with operations in various sectors, ranging from oil & gas, petrochemicals, power and water, to the infrastructure and manufacturing industry.

The reserved capital increase has been underwritten by ARDECO against issuance of  n. 1,697,500 Maire Tecnimont S.p.A. ordinary shares – equal to 5% of the reserved share capital post-increase – at a price of €9.00 per share, of which €8.50 as share premium. The newly issued shares shall accrue regular dividend, have identical characteristics as the outstanding shares at the moment of issuance and enjoy the option rights deriving from the capital increase with option rights resolved by Maire Tecnimont S.p.A. Extraordinary Shareholders’ Meeting of 6 June 2013.

Maire Tecnimont S.p.A. further informs that ARDECO has notified the Company of its intention also to underwrite the percentage of the option rights it is entitled to exercise with accordance to the shares held (equal to 5%), for a maximum amount of approximately €6,736,000, and that it reserves the right to consider the underwriting of the rights that may not have been exercised, in the context of the capital increase transaction with option rights resolved by the Extraordinary Shareholders’ Meeting.

Maire Tecnimont SpA

Maire Tecnimont is an international leading Group in the sectors of Engineering & Construction (E&C), Technology & Licensing and Energy & Ventures with specific skills in plant engineering in particular in the hydrocarbon industry (Oil & Gas, Petrochemicals, Fertilizers) and also in Power Generation and Infrastructures. The Group is listed on the Milan Stock Exchange and is present in over 30 countries, controls approximately 45 operating companies and has about 4,500 employees, half of whom are located abroad. At 31 December 2012 the Group reported revenues for €2.2 billion and a backlog of about €5 billion. For further information: www.mairetecnimont.com.

Investor Relations

Riccardo Guglielmetti

Tel +39 02 63137594

investor-relations@mairetecnimont.it