Environment

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2025 ANNUAL REPORT

Climate change

Climate change poses a direct threat to respiratory health by increasing the potential for allergen exposure. For example, climate change can extend pollen seasons and/or alter the distribution and abundance of allergenic plants. As a company focused on improving the lives of individuals with allergies, we recognise our responsibility to contribute to a healthier planet. Thus, we are committed to mitigating climate change in a manner that safeguards both the environment and people with allergies.

Setting science-based targets

Our carbon emission reduction targets have been confirmed by SBTi (Science Based Targets initiative) to be in line with what the latest climate science deems necessary to meet the goals of the Paris Agreement - limiting global warming to 1.5°C above per-industrial levels. The setting of these targets underscores our commitment to mitigate the tangible impacts and risks associated with climate change.

Progress on transition plan

Driven by our decarbonisation actions, we have decreased carbon emissions from our own operations by 11% compared to our 2022 science-based target baseline. Our scope 1 and 2 emissions now account for 4,883 tCO2e (2022: 5,492 tCO2e), on track with our 42% target by 2030. The main drivers of the reduction are the electrification of the boiler in France as well as the transition to electrical company fleet.

In 2025, through an expanded supplier screening and engagement on carbon‑reduction targets, we increased the share of suppliers with science‑based targets to 50% (2024: 35%).

Pollution

All chemicals used by ALK are regulated under the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) Regulation. Some chemicals are classified as Substances of Concern (SoCs) or Substances of Very High Concern (SVHCs) due to their potential environmental and human health impacts.

ALK ensures compliance with REACH and local regulations for responsible use and handling of chemicals in production. Relevant actions and resources are continuously evaluated and allocated at the operational level to maintain high environmental and safety standards.

Water

Our production facilities rely on the consumption of water, which is an important natural resource in many areas. Our Madrid site, located in a water‑scarce region, represents only 7% of total consumption.

We monitor our water use in our production facilities to ensure compliance with local legal regulation. In 2025, ALK’s production facilities consumed 181,000 m³ water in 2025.

Irrigation of allergenic source materials on ALK owned and leased farmland is our principal source of water use, accounting for 55% of total use in 2025. We practice crop rotations at our farmland, to maintain soil health, manage nutrient balances, and support long-term yield stability. As a results, the water used for irrigation can fluctuate year on year, depending on the number of irrigated fields.

Biodiversity and Ecosystems

The majority of ALK’s allergenic source materials - pollens, mites, moulds and insect venom - are sourced from nature on ALK’s own and leased land in North America. ALK is committed to sustainable agricultural practices and complies with all relevant national legislation. On its main farmland in Idaho (USA), ALK has implemented several initiatives to support biodiversity, such as:

Diversify
crops to support
pollinators

Practice
crop
rotations

Minimise
pesticides and
fertilisers

Large
buffer zones for
biodiversity

Targeted
lime and no‑till
practices

Reuse mite
waste to enrich
soils

Resource use and circular economy

In 2025 we introduced a global waste policy to reduce environmental impact, promote resource efficiency, and commit to reducing landfill disposal.

75% (1,576 tonnes) of our waste was reused or recycled in 2025, including waste from the production of allergenic source materials.

7% (136 tonnes) operational waste is disposed to landfill.