STMicroelectronics Publishes 2005 Corporate Responsibility Report

Geneva, August 28, 2006 – STMicroelectronics (NYSE: STM), one of the world’s leading semiconductor manufacturers, has announced the publication of the Company’s 2005 Corporate Responsibility Report, which is available for download at www.st.com/cr. The report, which covers all of ST’s activities and sites in 2005, contains detailed indicators of the Company’s performance across the full range of Social, Environmental, Health & Safety, and Corporate Governance issues and reaffirms ST’s long-established commitment to serving its stakeholders with integrity, transparency and excellence.

Designed to meet the needs of ST’s key stakeholders, the report describes the main initiatives that the company launched in 2005 to further strengthen its competitiveness and industry leadership and demonstrates how these have been implemented without sacrificing the Company’s enduring commitment to its stakeholders. It also shows how ST brings its Principles for Sustainable Excellence to life in its daily activities, how it integrates a culture of responsibility and accountability in its decision-making processes, and how this leads to performance improvements such as reducing energy consumption and CO2 emissions of both operations and products.

The term ‘Sustainable Excellence’ reflects ST’s belief in its ability to respond to stakeholders’ expectations in the short and long term to make our company ‘sustainable’ – successful now and in the future – and enable it to contribute to sustainable development at a global level.

STMicroelectronics was one of the first global industrial companies to recognise the importance of environmental responsibility and has won many awards for its pioneering work in this field. Since the company published its first ‘Environmental Decalogue’ in 1994, it has continually widened the scope of its definition of corporate responsibility and increasingly formalised both the deployment of its principles within the company and the reporting of the results to stakeholders to ensure that it remains at the forefront of Corporate Responsibility.

For further information about ST and its responsibilities, or copies of previous years’ reports, please visit www.st.com/corporateresponsibility.

About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today’s convergence markets. The Company’s shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2005, the Company’s net revenues were $8.88 billion and net earnings were $266 million. Further information on ST can be found at www.st.com

Contact Information

Maria Grazia Prestini

Senior Director, Corporate Media and Public Relations

STMicroelectronics

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