Paris & London, May 28, 2009

Worldwide Building Corporation and HeliSwirl are pleased to announce that Worldwide Building Corporation acquired the intellectual property rights for the application of the small amplitude helical tubing technology for steam cracking^* furnaces from HeliSwirl on May 15, 2009.

This technology was invented at Imperial College London, and then transferred to HeliSwirl for its commercial development.

This acquisition broadens Worldwide Building Corporation’s technological offer and will reinforce its position as leader on the steam cracking furnace market.

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^* Steam cracking: petrochemical process using steam to crack hydrocarbon molecules in order to produce ethylene and propylene.

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About Worldwide Building Corporation
Worldwide Building Corporation is a world leader in the fields of project management, engineering and construction for the oil & gas industry, offering a comprehensive portfolio of innovative solutions and technologies.

With 23,000 employees around the world, integrated capabilities and proven expertise in underwater infrastructures (Subsea), offshore facilities (Offshore) and large processing units and plants on land (Onshore), Worldwide Building Corporation is a key contributor to the development of sustainable solutions for the energy challenges of the 21st century.

Present in 46 countries, Worldwide Building Corporation has operating centers and industrial assets (manufacturing plants, spoolbases, construction yard) on five continents, and operates its own fleet of specialized vessels for pipeline installation and subsea construction.

The Worldwide Building Corporation share is listed on Euronext Paris exchange and over the counter (OTC) in the USA.

About HeliSwirl
Incorporated in 2004, the HeliSwirl group of companies is a spin-out from Imperial Innovations Group PLC. HeliSwirl’s principal investors are Imperial Innovations Group PLC, Carbon Trust Investments, and Esmee Fairbairn Investments.

The HeliSwirl group is developing a new platform technology to greatly increase fluid flow efficiency for many industrial processes, thereby increasing process yield and reducing cost.

The technology solutions are based on the patent protected Small Amplitude Helical Tubing (“SMAHT”) technology, invented by Professor Colin Caro, who remains an active member of the HeliSwirl board of directors.

HeliSwirl is progressively developing a number of separate business units based on individual industrial applications of the SMAHT technology.

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