Heraeus will vigorously defend its innovative Photovoltaic Metallization Technology

Hanau (Germany) and West Conshohocken (USA), September 4, 2011

On September 2, Heraeus Holding GmbH and Heraeus Materials Technology LLC were sued in a patent infringement lawsuit filed against them in the U.S. District Court of Delaware. "Heraeus will vigorously defend its rights against this claim of patent infringement", according to Andy London, Global Manager for the Photovoltaic Business Unit. "We respect the intellectual property rights of others and carefully monitor industry developments to ensure full compliance and are therefore confident we do not infringe any valid patents."

The Heraeus Photovoltaic group is showing its newest, cost saving silver metallization pastes at this year's PVSEC trade show at the CCH Congress Center in Hamburg, Germany, September 5 - 8, Hall A4 booth number B9. Heraeus has long been known around the world as a leader in market innovation. Our products for metallization come from over 40 years of Thick Film experience and our unique technology. We have invested heavily in research in order to bring new metallizations to the industry, improving cost structures and efficiency for our customers.

With a convincing roadmap of innovative products Heraeus will continue to offer leading technology for metallization of PV cells across the industry.

Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with 160 years of tradition. Our fields of competence include precious metals, materials and technologies, sensors, biomaterials and medical products, as well as dental products, quartz glass, and specialty light sources. With product revenues of €4.1 billion and precious metal trading revenues of €17.9 billion, as well as more than 12,900 employees in over 120 subsidiaries worldwide, Heraeus holds a leading position in its global markets.

For additional information, please contact:

Martina Rauch

Executive Vice President of Corporate Communications

Heraeus Holding GmbH

Heraeusstr. 12 - 14

63450 Hanau, Germany

T +49 (0) 6181.35-5100

F +49 (0) 6181.35-4242

martina.rauch@heraeus.com

www.heraeus.com

For additional product information, please contact:

David McMullan