We adopt a rigorous approach to managing business operations in an environmentally responsible way, committing twenty years ago to our EHS Decalogue objectives that have helped us to reduce the environmental impact of our products and operations.

ST Environment Policy
Our Environmental Policy and our set of Environmental Procedures describe how our manufacturing operations can achieve in practice high-level environmental commitments on pollution prevention, reduced consumption of natural resources, reduction of waste, and minimized impact (social and environmental) of chemical substances, as set out in our code of conduct, our Code of Conduct. The Policy is in line with international and local regulations, incorporating best practice principles from the International Chamber of Commerce Business Charter for Sustainable Development, as well as the Eco-Management and Audit Scheme (EMAS) and the ISO 14001 international standard. In fact, all of ST’s manufacturing sites are fully compliant with this Policy and are EMAS and ISO 14001 certified.

Our Policy has been in place since 1993 and is testament to our long-standing commitment to minimizing our environmental impacts and continuously improving our environmental performance – for more information, see our latest Sustainability report.

ST Environment, Health and Safety Decalogue
We were one of the first companies in the 1990s to publicly commit to reducing the impact of our business operations on the environment. Ten medium to long-term targets designed to improve ST’s health, safety, eco-design and environmental performance are encapsulated in our Environment Health and Safety Decalogue, a document that is widely distributed to our employees, suppliers, customers and partners. The Decalogue, overseen by the CEO, has been revised fourth times since it was first published in 1995 to reflect our desire to continuously improve our EHS performance and ensure our business grows in a sustainable manner.

Environmental governance
EHS performance is evaluated against the Decalogue’s targets at all levels across the business on a quarterly basis, during individual site environmental committees chaired by site managers through to Corporate Staff meetings overseen by the CEO. The results are reported at company level on an annual basis in our Sustainability report.

Environmental efficiency priorities and intention

GHG Air Emissions

ST is committed to managing and reducing its direct and indirect greenhouse gas emissions, including PFCs, from its manufacturing and other business operations, in accordance with scopes 1 to 3 of the Kyoto Protocol.

ST is committed to reducing water use and ensuring high standards of effluent and waste water treatment. We are also committed to identifying and managing water-related risks and opportunities, including impacts on local communities.

ST is committed to reducing its energy consumption and associated carbon footprint through energy efficiency and conservation programs, along with the purchase of low CO2-free and renewable energies.


ST is committed to reducing and managing the environmental, health and safety risks related to the chemicals and materials used in the manufacturing process, by basing the selection, handling and substitution on the precautionary principles.

ST is committed to continuously reducing, re-using, recycling and managing waste streams from manufacturing sites, including hazardous substances, metals, packing, plastics and other non-biodegradable materials.