LOGITECH INTERNATIONAL S.A.

Appendix A: Key Performance Indicators

Environmental Performance Indicators

ERM Certification and Verification Services Limited (“ERM CVS”) has provided limited assurance in relation to the Key Performance Indicators marked with a tick (✓) below. All units quoted below are S.I. units.

TABLE 1 FUEL, REFRIGERANT, AND ELECTRICITY CONSUMPTION AT OUR PRODUCTION FACILITY

TABLE 2 RENEWABLE AND NON-RENEWABLE ELECTRICITY

TABLE 3 SCOPE 1 & 2 GREENHOUSE GAS (GHG) EMISSIONS

19 The renewable electricity footprint of our production facility and Major Offices, as a percentage of total electricity footprint of those facilities, rounded to the nearest 1%. Our Major Offices are the offices that account for 80% of floor space.

20 Market-based Scope 2 emissions.

TABLE 4 CARBON REDUCTION PROGRAMS

TABLE 5 SCOPE 3 GREENHOUSE GAS EMISSIONS

Our Scope 3 greenhouse gas emission inventory is summarized below. This inventory takes into account the carbon reductions we have achieved, as set out in the previous table and described further in this Report.

21 Including green tariffs and Energy Attribute Certificates.

22 Including green tariffs and Energy Attribute Certificates.

23 Other carbon reductions due to various programs e.g. PCB optimization, optimizing product architecture, reducing packaging, using more efficient integrated circuits.

TABLE 6 WATER

TABLE 7 DESIGN FOR SUSTAINABILITY

TABLE 8 MATERIALS

24 Water withdrawal is the sum of all water withdrawn by Logitech during the reporting period.

25 Water consumption is the sum of all water that has been consumed by Logitech during the reporting period.

26 Water discharge is the difference between water withdrawal and water consumption and equates to the sum of all water discharged by Logitech during the reporting period.

27 Measured as the percentage of units shipped from 01 March 2025 to 31 March 2025, for which Logitech had a third-party reviewed Product Carbon Footprint.

28 Measured as the percentage of units shipped from 01 March 2025 to 31 March 2025, for which all paper-based consumer packaging was FSCTM-certified.

29 Measured as the percentage of New Product Introduction units shipped from 01 March 2025 to 31 March 2025, for which all paper-based consumer packaging was FSCTM-certified. New Product Introductions: a Logitech product line launched within the boundaries of the financial year.

30 Measured as the percentage of units shipped from 01 March 2025 to 31 March 2025, which incorporate post-consumer recycled plastic.

31 Measured as the percentage of product lines shipped from 01 March 2025 to 31 March 2025, which have no detectable presence of polyvinyl chloride e.g. in cables or component parts.

32 Measured as the percentage of product lines shipped from 01 March 2024 to 31 March 2024, for which contain aluminum are shipped with low carbon or recycled aluminum.

33 The weight of materials used in Logitech products and packaging is ascertained by reviewing bill of materials (BOM) data. A variety of data sources are used, including BOM data that forms part of third-party reviewed Life Cycle Assessments and commercial/shipping records.

34 Modeled as the weight of recycled plastic, aluminum, and steel, and the weight of recycled paper in master shipper packaging, shipped ex-Factory in Logitech products from 01 January 2024 to 31 December 2024.

35 For Logitech, natural materials are paper and paper-based products.

36 Renewable materials are natural materials that can be replenished quickly and are recyclable at end-of-life. For Logitech, renewable materials are FSCTM-certified paper and the paper used in our master shipper boxes.

Social Performance Indicators

Inclusion

TABLE 9 GENDER OF THE BOARD OF DIRECTORS

TABLE 10 AGE OF THE BOARD OF DIRECTORS

TABLE 11 RACE/ETHNICITY OF THE BOARD OF DIRECTORS

TABLE 12 GENDER OF THE LEADERSHIP TEAM

TABLE 13 GENDER, AGE, RACE/ETHNICITY AND REGION ALL EMPLOYEES

TABLE 14 GENDER OF SPECIFIC POSITIONS

37 Data is available for U.S. employees only. Individuals may choose to disclose their racial/ethnicity in accordance with the categories and requirements of the U.S. Equal Employment Opportunity Commission EE-01 Component Reporting rules. Individuals who choose not to identify are classified as “declined to state.”

38 Women in the Logitech “People Managers” category, “Extended Leadership” category, and “Leadership Team” category, as a percentage of all individuals in those categories.

39 Women in the Logitech “People Managers” category, as a percentage of all individuals in that category.

40 Women in the Logitech “Extended Leadership” category and “Leadership Team” category, as a percentage of all individuals in these two categories.

41 Revenue-generating positions are positions in sales or with any type of sales commission; for example, some of Logitech’s Customer Support Group and Design and Marketing Group may be included. The percentage of women managers in revenue-generating positions is calculated as the number of women managers in revenue-generating positions divided by the total number of managers in revenue-generating positions.

42 STEM positions are positions that relate to science, technology, engineering, and mathematics. Logitech’s People and Culture team define these positions, which include engineers, data scientists, and others. The number of women in STEM positions is calculated as a percentage of the total number of individuals in STEM positions..

TABLE 15 TOTAL EMPLOYEES

TABLE 16 GENDER BY CONTRACT & EMPLOYMENT TYPE 43

TABLE 17 REGION BY EMPLOYMENT TYPE 44

TABLE 18 NUMBER AND RATE OF NEW EMPLOYEE HIRES BY AGE GROUP, GENDER AND REGION 45

43 Includes permanent and temporary direct and indirect workers from all regions worldwide.

44 Includes permanent and temporary direct and indirect workers from all regions worldwide.

45 Includes direct workers from all regions worldwide.

TABLE 19 NUMBER AND RATE OF EMPLOYEE TURNOVER BY AGE GROUP, GENDER AND REGION

TABLE 20 HEALTH AND SAFETY AT OUR PRODUCTION FACILITY

• The third-party assurance covered only the total values; direct and indirect subcategories were outside the scope of the assurance.

** Powered Industrial Vehicle (Foot Injury) and Manual Handling (Foot Injury).

46 Direct contract: Individuals with a direct employment contract with Logitech.

47 Indirect contract: Workers who do not have a direct employment contract with Logitech but their routine work and or workplace is controlled by Logitech. This includes but is not limited to Dispatch Workers and Temporary Workers (Intern/Student workers and Fixed term).

48 Incident categories comprised slip/trip/fall and hit/cut/bruise due to manual handling of materials, equipment or tools.

49 Total number of recordable injuries and illness cases per 200,000 hours worked.

TABLE 21 RESPONSIBLE SOURCING OF MINERALS

TABLE 22 SUPPLIER AUDIT

Business Conduct Performance Indicators

TABLE 23 BUSINESS CONDUCT

TABLE 24 PRIVACY AND SECURITY

50 Calculated as the number of suppliers that manufactured products or components with tin, tantalum, tungsten, gold, mica or cobalt for Logitech during Calendar Year 2024 and had a business relationship with Logitech at the time of KPI calculation (March 2025) and participated in our Responsible Sourcing of Minerals Program by attending Logitech training or completing a CMRT/EMRT survey.

51 Confirmed incident is a substantiated case.

52 A fine of more than USD $10,000.