STMicroelectronics Enters the Dow Jones World and Europe Sustainability Indices

Geneva, September 24, 2018- STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, announced today that it has joined the Dow Jones Sustainability Indices (DJSI) World and Europe.

The DJSI Europe and World indices, jointly calculated by the Standard & Poor's Dow Jones[1] Indices and RobecoSAM[2], reward the most responsible companies in the world. STMicroelectronics, with a total score of 81 points out of 100, was ranked in the top ten percent of the global semiconductor companies that were invited to participate in the DJSI.

Jean-Marc Chery, STMicroelectronics President & CEO, commented: "Sustainability has been part of ST's culture for over 25 years, and will continue to be a key driver for our sustainable profitable growth. This achievement acknowledges our long-standing commitment to conducting our business responsibly and recognizes our performance in many domains ranging from business ethics, innovation, and quality, to environment and labor practices."

DJSI's ranking is based on an in-depth analysis of the economic stability, social and environmental performance of more than 2,000 international groups and the assessment of numerous criteria such as corporate governance, customer relations, environmental policy, working conditions and social initiatives, as well as an analysis of media coverage and stakeholders feedback.

An online version of ST's Sustainablity Report is available here.

About STMicroelectronics

ST is a global semiconductor leader delivering intelligent and energy-efficient products and solutions that power the electronics at the heart of everyday life. ST's products are found everywhere today, and together with our customers, we are enabling smarter driving and smarter factories, cities and homes, along with the next generation of mobile and Internet of Things devices. By getting more from technology to get more from life, ST stands for life.augmented.

In 2017, the Company's net revenues were $8.35 billion, serving more than 100,000 customers worldwide. Further information can be found at www.st.com.

For further information, please contact:

INVESTOR RELATIONS:Tait Sorensen Group VP, Investor Relations STMicroelectronics Tel: +1 602 485 2064 tait.sorensen@st.com

MEDIA RELATIONS:Alexis Breton Director, PR & Media OperationsSTMicroelectronics Tel: + 33 6 59 16 79 08 alexis.breton@st.com

[1] The S&P Dow Jones is a leading reference in sustainability indices. Their DJSI World index is the longest running global index to track the leading sustainability-driven companies based on RobecoSAM's analysis of financially material Environmental, Social, and Governance (ESG) factors and S&P DJI's robust index methodology.

[2] Founded in 1995, RobecoSAM is an investment specialist focused exclusively on Sustainability Investing. It offers asset management, indices, impact analysis and investing, sustainability assessments, and benchmarking services.

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