We work continuously to improve and evolve our business so as to reduce our impact and go beyond regulatory requirements. This means managing and monitoring our environmental impacts, specifically in relation to energy consumption, emissions, waste, and water.

Our headquarters in Allschwil (Switzerland) is the focus of our environmental impact management, as it is by far our largest site and is where the majority of our pharmaceutical research takes place.

We seek to reduce consumption as far as possible; for instance, at headquarters, accounting for 99.8% of our total energy consumption, we are transitioning to LED lighting wherever possible, so as to significantly reduce our electricity consumption for office and laboratory lighting. Furthermore, we are always looking for innovative ways to reduce our emissions, and – in compliance with the requirements specified for large energy consumers in Canton Basel-Landschaft’s Energy Act – we have a formal agreement with the Federal Offices for the Environment and Energy to increase energy efficiency by 4.7% and decrease CO2 emissions by 20% at our headquarters from 2016 to 2025.

Our electricity supply at headquarters is obtained from 100% hydropower, a renewable energy source. Energy at other locations is used for offices, consisting mainly of leased premises.

Read the 2024 Sustainability Report for more information and disclosures.

As part of our environmental management system, greenhouse gas emissions are monitored according to the GHG Protocol, using the operational control method. Our direct emissions primarily result from the combustion of energy sources to generate heat; however, our value chain (Scope 3) accounts for a significantly larger portion of our total greenhouse gas emissions.

Our emission reduction target covers operations in Switzerland, which account for 99% of our total Scope 1 and Scope 2 emissions. As formally agreed with the Federal Offices for the Environment and Energy, we aim to reduce our CO2 emissions by 20% by 2025, compared to 2016. We have already exceeded this reduction target, due to the installation of a woodchip burner in 2018.

More information on the 2024 performance can be found in the 2024 Sustainability Report.

Waste prevention and appropriate disposal are key to safeguarding the environment and conserving raw materials and energy reserves. We aim to limit the environmental impact of our company so as to help ensure a safe and healthy environment for future generations. Most of our waste comes from our headquarters in Switzerland, which is by far our largest operating location. Other significant operating locations consist of leased offices, where waste is primarily domestic.

Read the 2024 Sustainability Report for more information and disclosures.

At Idorsia, water is used for a variety of purposes, such as laboratory experimentation, drinking, facility cooling, cleaning, and maintenance operations. Water management is part of Idorsia’s environmental management system, which covers all significant operating locations. Although our business is not water intensive, we work to minimize the use of this precious resource.

We strictly adhere to all regulations concerning water quality and potential impacts on water resources. As chemical substances may have adverse effects on water quality, our laboratories have strict procedures to prevent hazardous chemicals from being disposed of via the sink and thus entering the water system. Furthermore, we remain compliant with the strict wastewater quality standards set by external regulators. This includes priority substances of concern, which are monitored internally and externally. The discharge limits set for such substances by external regulators are adhered to.

Read the 2024 Sustainability Report for more information and disclosures.