Integrated Annual Report 2025

Focus Topics – Employee-related issues

Occupational health and safety

Impacts, risks, and opportunities

Impacts

Zehnder Group’s manufacturing processes, particularly in radiator and ventilation production, pose risks due to hazardous materials, heavy machinery, and energy-intensive operations. If not properly managed, these risks may result in workplace accidents or long-term health issues. Our occupational health and safety (OHS) work therefore focuses on preventing harm and mitigating negative impacts through hazard identification, risk controls, and continuous monitoring. While prevention is our primary objective, a safer workplace supports employee well-being and helps sustain productivity by reducing injuries, absenteeism, and unplanned downtime.

Risks and opportunities

Inadequate health and safety standards can lead to work accidents, operational disruptions, legal liabilities, reputational damage, and increased costs resulting from workplace incidents or regulatory breaches. OHS-related risks may also increase due to evolving regulations or greater scrutiny of safety practices by stakeholders. Supporting ongoing improvement with employee training and engagement helps create a safer work environment and supports long-term business resilience. Adhering to international health and safety standards can also strengthen relationships with external stakeholders, particularly regulators and investors, who increasingly value robust safety performance.

Management approach

Zehnder Group promotes OHS across the organisation, aiming to provide safe working conditions in all its operations and to eliminate fatalities and serious work-related injuries.

OHS is overseen at Group level by the COO Radiators EMEA, with a standardised reporting process implemented in 2025. Each relevant production site has an appointed OHS manager responsible for KPI collection and compliance. Regular internal and external audits, along with certification processes, form part of Zehnder Group’s due diligence in managing safety risks. By tracking metrics, such as the work-related injury rate and certification rate, we are able to monitor the effectiveness of our OHS initiatives.

Occupational health and safety management systems

The international standard ISO 45001 offers a robust framework for accident prevention and the management of workplace risks. This standard forms the basis for all our European production sites that have complex manufacturing processes. This certification is particularly important for our radiator production facilities and other sites involved in metal forming or injection moulding.

The Occupational Health and Safety Group Directive defines the key elements of our approach. These include establishing clear safety guidelines, conducting machinery and process risk assessments, and analysing all work-related incidents to prevent recurrence. Measures range from technical improvement, such as setting minimum safety standards for equipment, to enhancing work organisation and training practices.

Implementation and outlook

Implementation of the above management approach and policies is structured around one focus area with defined targets and KPIs.

Targets

Ambition: Create an environment in which we promote occupational health and safety across the organisation

Target: Obtain ISO 45001 certification (or equivalent) of all production sites where metal forming or plastic injection takes place

Target: Create and implement an Occupational Health and Safety Group Directive

Metrics

GRI 403: Occupational Health and Safety 2018
Disclosure 403-8 Workers covered by an occupational health and safety management system

Indicator description

Unit of measure

2025

2024

Change from prior year

2023

Change from base year

Rate of all employees and workers who are not employees, but whose work and/or workplace is controlled by the organisation, who are covered by an occupational health and safety management system

%

83.5

84.1

–0.6

pp

83.6

–0.1

pp

Rate of all employees and workers who are not employees, but whose work and/or workplace is controlled by the organisation, who are covered by an occupational health and safety management system that is internally audited

%

41.3

47.3

–6.0

pp

54.5

–13.2

pp

Rate of all employees and workers who are not employees, but whose work and/or workplace is controlled by the organisation, who are covered by an occupational health and safety management system that is externally audited

%

48.9

56.0

–7.1

pp

52.5

–3.6

pp

Total number of employees, i.e. individuals who are in an employment relationship with the organisation: 3472 employees in 2025, 3527 employees in 2024, and 3669 employees in 2023

Total number of workers who are not employees, but whose work and/or workplace is controlled by the organisation: 359 workers in 2025, 242 workers in 2024, and 215 workers in 2023

GRI 403: Occupational Health and Safety 2018
Disclosure 403-9 Work-related injuries
Work-related injuries for all employees

Indicator description

Unit of measure

2025

2024

Change from prior year

2023

Change from base year

Total number of fatalities as a result of work-related injury for all employees

#

-

-

-

-

-

Rate of fatalities as a result of work-related injury for all employees

# per 1,000,000 hours worked

-

-

-

-

-

Total number of high-consequence work-related injuries (excluding fatalities) for all employees

#

-

3

–100.0

%

-

n/a

Rate of high-consequence work-related injuries (excluding fatalities) for all employees

# per 1,000,000 hours worked

-

0.5

–0.5

-

-

Total number of recordable work-related injuries for all employees1

#

67

67

-

73

–8.2

%

Rate of recordable work-related injuries for all employees

# per 1,000,000 hours worked

10.4

10.7

–0.3

11.7

–1.3

Number of hours worked for all employees: 6,432,738 in 2025, 6,242,160 hours in 2024, and 6,231,245 hours in 2023

1The main types of work-related injuries are strains and sprains, cuts, lacerations, bruises, contusions, and falls. Following these reported injuries, additional corrective and safeguard measures were implemented to prevent such accidents in the future. Additionally, retraining sessions were conducted to enhance awareness and to further reduce risks.

GRI 403: Occupational Health and Safety 2018
Disclosure 403-9 Work-related injuries
Work-related injuries for all workers who are not employees, but whose work and/or workplace is controlled by the organisation

Indicator description

Unit of measure

2025

2024

Change from prior year

2023

Change from base year

Total number of fatalities as a result of work-related injury for all workers who are not employees, but whose work and/or workplace is controlled by the organisation

#

-

1

–100.0

%

-

-

Rate of fatalities as a result of work-related injury for all workers who are not employees, but whose work and/or workplace is controlled by the organisation

# per 1,000,000 hours worked

-

2.0

–2.0

-

-

Total number of high-consequence work-related injuries (excluding fatalities) for all workers

#

-

1

–100.0

%

-

-

Rate of high-consequence work-related injuries (excluding fatalities) for all workers

# per 1,000,000 hours worked

-

2.0

–2.0

-

-

Total number of recordable work-related injuries for all workers1

#

9

11

–18.2

%

8

12.5

%

Rate of recordable work-related injuries for all workers

# per 1,000,000 hours worked

15.3

22.4

–7.1

19.5

–4.2

Number of hours worked for all workers who are not employees, but whose work and/or workplace is controlled by the organisation: 587,865 hours in 2025, 491,005 hours in 2024, and 410,749 hours in 2023

1The main types of work-related injuries are strains and sprains, cuts, bruises, and falls. Following these reported injuries, additional corrective and safeguard measures were implemented to prevent such accidents in the future.

GRI 403: Occupational Health and Safety 2018
Disclosure 403-10 Work-related ill health

Indicator description

Unit of measure

2025

2024

Change from prior year

2023

Change from base year

Total number of fatalities as a result of work-related ill health for all employees

#

-

-

-

-

-

Total number of cases of recordable work-related ill health for all employees

#

14

9

55.6

%

2

600.0

%

Total number of fatalities as a result of work-related ill health for all workers who are not employees, but whose work and/or workplace is controlled by the organisation

#

-

-

-

-

-

Total number of cases of recordable work-related ill health for all workers who are not employees, but whose work and/or workplace is controlled by the organisation

#

1

2

–50.0

%

-

n/a

Due to confidentiality and local legislation, not all details could be disclosed outside the local entity. However, cases that were reported with the cause were primarily tied to work-related stress.

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