Sanofi's CSR Achievements Recognized in the Dow Jones Sustainability Indices

PRESS RELEASE

Paris, France - September 16, 2015 - Sanofi announced today that its Corporate Social Responsibility (CSR) performance has been recognized in the Dow Jones Sustainability Indices. For the ninth consecutive year, Sanofi has been included in the DJSI World, the most recognized international sustainability indices by investors. Sanofi is also among five pharmaceutical companies selected for the DJSI Europe, a first in the company's history.

Sanofi improved its ranking in the Dow Jones Sustainability Indices, reaching the score of 86 out of 100 in 2015, against 83 in 2014. These indices assess companies' economic, social, societal and environmental performance in 24 distinct areas. Sanofi is recognized as best in class on several criteria including Strategy to Improve Access to Drugs or Products, Health outcome contribution, Bioethics, Social Reporting and Stakeholder engagement.

"We are very proud that Sanofi continues to be recognized as one of the most sustainable companies within the pharmaceutical sector. This success is a tribute to all our employees and their ongoing commitment to Corporate Social Responsibility", said Olivier Brandicourt, MD, Chief Executive Officer, Sanofi. "Sustainability is an integral part of our corporate strategy and how we do business every day around the world."

In 2014, Sanofi remained focused on its ambition to protect the health and respond to the hopes of 7 billion men and women. We continued to include more beneficiaries in our many access to healthcare programs with more than 89 million patients receiving diagnosis, vaccination, treatment or self-disease management programs in over 80 countries. As far as environment is concerned, Sanofi recognized its responsibility to fight against climate change. In 2014, we reduced our environmental impact by decreasing our CO

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emissions by 15 percent compared to 2010.