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QSC again wins Deloitte Sustained Excellence Award

Cologne, October 21, 2010. For the second time since 2007, QSC AG, a mid-size service provider in the telecommunications industry with its own Next Generation Network, was last night in Berlin awarded the Sustained Excellence Award by auditing and consulting company Deloitte. This award is given to companies that, in addition to maintaining long-term growth, stand out for their innovation capacity, entrepreneurial mindset and excellent performance - all of which create sustainable value. The committee charged with selecting the award-winners takes into consideration not only financial performance indicators but also factors such as attractiveness of the market segment, competitive edge and management.

QSC's Chief Financial Officer, Jürgen Hermann, notes: "This award validates our strategy. QSC consistently creates value for customers, partners, employees and shareholders, and - as a mid-size provider for mid-size companies - is optimally positioned. This unique position is underpinned by innovations such as our recently launched Open Access platform.

Dieter Schlereth, Partner and Industry Leader TMT with Deloitte, says: "Our award winners prove that technology companies are capable of becoming firmly established in future-oriented fields, even in times of economic difficulty. With their willingness to take on risks combined with their entrepreneurial spirit, they have consistently and successfully pursued their visions."

About QSC
QSC AG (QSC), Cologne, is a medium-sized service provider to the telecommunications industry with its own Next Generation Network (NGN). QSC offers a complete portfolio of high-quality broadband communication services with a particular focus on medium-sized companies. In addition to providing intelligent network-related voice and data services, QSC implements complete enterprise networks (VPNs), including managed services. It provides high-performance DSL, Ethernet and wireless local loop connections of up to 800 Mbit/s. In the Wholesale line of business, QSC additionally supplies national and international carriers, ISPs as well as strong providers in the residential customer market with the necessary unbundled initial products. QSC currently employs about 700 people and is listed in the TecDAX index.

About Deloitte
Deloitte provides audit, tax, consulting, and financial advisory services to public and private clients spanning multiple industries. With a globally connected network of member firms in more than 140 countries, Deloitte brings world-class capabilities and deep local expertise to help clients succeed wherever they operate. Deloitte's approximately 170,000 professionals are committed to becoming the standard of excellence.
Deloitte's professionals are unified by a collaborative culture that fosters integrity, outstanding value to markets and clients, commitment to each other, and strength from cultural diversity. They enjoy an environment of continuous learning, challenging experiences, and enriching career opportunities. Deloitte's professionals are dedicated to strengthening corporate responsibility, building public trust, and making a positive impact in their communities.

Standard Legal Description
Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee, and its network of member firms, each of which is a legally separate and independent entity. Please see or for a detailed description of the legal structure of Deloitte Touche Tohmatsu Limited and its member firms.

Queries to:
Arne Thull
Investor Relations
Phone: +49 221 6698-724
Fax: +49 221 6698-009