Prysmian : and Nanocomp Technologies sign technology cooperation agreement

PRESS RELEASE

PRYSMIAN GROUP AND NANOCOMP TECHNOLOGIES SIGN TECHNOLOGY COOPERATION AGREEMENT

AIM IS TO FIT NANOTECHNOLOGIES TO CABLE SYSTEMS FOR POWER GRIDS, TELECOM NETWORKS AND INDUSTRIAL APPLICATIONS

Milan, 29 May 2017 - Prysmian Group, world leader in the energy and telecom cable systems industry, and Nanocomp Technologies Inc., a world-leading U.S. company specialised in the production of carbon nanotube-based products and materials, have signed a technology cooperation agreement aimed at testing and improving the use of these technologies in power transmission, power distribution, telecom networks, control and instrumentation applications.

The firms have also agreed to evaluate, at a later stage of the project, whether to commence large- scale production of products and technologies developed as part of this research. The interest of the two companies is driven by the high potential offered by Nanocomp's Miralon® carbon nanotube's intrinsic characteristics in terms of mechanical resistance, low weight, chemical inertness, very high degree of flexibility, and electrical and heat conductivity.

Partnerships with universities around the world and advanced research centres are key to Prysmian's R&D activities. By signing this agreement, the Group confirms its focus on innovation, centred not only on the development and improvement of its core business, but also on new technologies and materials, enabling ground-breaking achievements in rapidly expanding market segments.

Prysmian Group

Prysmian Group is world leader in the energy and telecom cable systems industry. With nearly 140 years of experience, sales of over €7.5 billion in 2016, 21,000 employees across 50 countries and 82 plants, the Group is strongly positioned in high- tech markets and offers the widest possible range of products, services, technologies and know-how. It operates in the businesses of underground and submarine cables and systems for power transmission and distribution, of special cables for applications in many different industries and of medium and low voltage cables for the construction and infrastructure sectors. For the telecommunications industry, the Group manufactures cables and accessories for voice, video and data transmission, offering a comprehensive range of optical fibres, optical and copper cables and connectivity systems. Prysmian is a public company, listed on the Italian Stock Exchange in the FTSE MIB index.

Nanocomp Technologies, Inc.

Nanocomp Technologies is the leading commercial producer of high-performance strong, light and conductive sheets, tapes and yarns, comprised of multi-millimeter long carbon nanotubes. The company's Miralon® product family enables a new generation of lightweight, energy-saving structural, electrical, heating and shielding product offerings that are lauded for performing exceptionally well in harsh environments. Nanocomp is headquartered in Merrimack, NH. For additional information, please visit www.nanocomptech.com.

Media Relations Investor Relations

Lorenzo Caruso Cristina Bifulco

Corporate and Business Communications Director Investor Relations Director

Ph. 0039 02 6449.1 Ph. 0039 02 6449.1

lorenzo.caruso@prysmiangroup.com mariacristina.bifulco@prysmiangroup.com