Sustainability Report

YOKOGAWA

Cc-innovating tomorrow

‌The Yokogawa Philosophy and History of Sustainability

For Yokogawa, sustainability and business activities are inseparable.

Under Yokogawa's Purpose, "Utilizing our ability to measure and connect, we fulfill our responsibilities for the future of our planet," Yokogawa has set the sustainability goals as "Three Goals" for the society we aim to achieve by 2050, and continues to make persistent efforts to realize a sustainable society.

Founding Principles

Quality first Pioneering spirit

Contribution to society

The Yokogawa Philosophy

As a company, our goal is to contribute to the realization of a sustainable society through broad-ranging activities in the areas of measurement, control, and information.

Individually, we aim to combine good citizenship with the courage

Statement on Yokogawa's Aspiration for Sustainability

Yokogawa aims to achieve net-zero emissions, ensure the well-being of all, and make a transition to a circular economy by 2050, making the world a better place for future generations.

We will undergo the necessary transformation to achieve these goals by：1) becoming more adaptable and resilient, 2) evolving our businesses to engage in regenerative value creation, and 3)promoting co-

Yokogawa's Purpose

Aspiring to address social issues by leveraging Yokogawa's ability to measure and connect, we formulated Yokogawa's

to innovate.

Revised in 2022

innovation with our stakeholders.

Purpose.

1915

Founded

1988

Established the Yokogawa Philosophy

1994

Established our corporate Code of Conduct

2009

Joined the Global Compact

2009

2015

Established the Yokogawa Corporate Governance Guidelines

2017

2020

Established Yokogawa Group Human Rights Policy

2021

Established Yokogawa's Purpose

1999 Established the Supply

Joined in WBCSD (World Business Council

Defined six contribution areas toward 2030

Began publishing our Environmental Report (currently known as the Sustainability Report)

Chain CSR Guidelines (currently known as the Sustainable Procurement Guidelines)

for Sustainable Development)

2017

Announced the Statement on Yokogawa's Aspiration for Sustainability and set the "Three Goals" as sustainability goals for 2050

2019

Announced our support of the recommendations of the Task Force on Climate-Related Financial Disclosures (TCFD)

2022

Established the Sustainability Committee

2023

Acquired Science Based Targets (SBT) Certification for greenhouse gas emission reduction targets

2024

Launched the Growth for Sustainability 2028 (GS2028) Medium-term Business Plan Endorsed the recommendations of the Taskforce on Nature-related Financial Information Disclosures (TNFD) and registered as a TNFD Adopter

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‌Editorial Policy

This report discloses information about the sustainability of the Yokogawa Group. This

information is based on the GRI Standards, the global guidelines for the disclosure of sustainability information, and includes the disclosure of Yokogawa's priority issues in view of the opinions of our stakeholders. Further, Yokogawa has obtained external assurance to increase the reliability of the information.

In the Sustainability Report for this fiscal year, we disclose the progress and performance results for various metrics of GS2028, which aims to contribute to sustainability while expanding business growth. The report also includes specific examples of our contributions to addressing in collaboration with our customers. In addition, we explain the contents of two newly formulated policies: the "Trusted Green," a sustainability policy that considers the entire product supply chain and life cycle, and the "AI Policy."

Please see the Yokogawa Report (Integrated Report) for financial information and ESG information closely related to our business strategies. The GRI Standards Index is shown on our website.

2025 Yokogawa Sustainability Report

Cover Concept

On a clifftop, small yet resilient flowers bloom, swaying in the wind. They embody Yokogawa's commitment to steady progress toward a sustainable society, even as social issues grow more complex. Surrounding them, the grassy field, the vast sea below, and the clear blue sky symbolize the transparency of our activities and our bold spirit of challenge-guided by a broad perspective and a deep respect for living in harmony with nature.

Period Covered by Report

Fiscal year 2024 (April 1, 2024, to March 31, 2025)

This Report also includes some information on major activities in prior years and some of the latest information in fiscal year 2025.

Scope of Report Yokogawa Electric Corporation and all its consolidated subsidiaries Where the scope is different, a note is added to the relevant data. Timing of Publication

October 2025 (published annually)

Intended Readership

This Report is intended for a wide range of stakeholders, including customers, shareholders, investors, business partners, employees, local communities, NPOs, NGOs, and governments.

Company Names

In this Report, "Yokogawa" and "Yokogawa Group" refer to Yokogawa Electric Corporation and all of the consolidated subsidiaries. "Yokogawa Electric" and "Yokogawa Electric Co." refer to Yokogawa Electric Corporation.

Reference Guidelines

GRI Standards (Global Reporting Initiative) Environmental Reporting Guidelines 2018 (Ministry of the Environment, Japan)

Company Profile (as of March 31, 2025)

Corporate Name:

Yokogawa Electric Corporation

Paid-in Capital:

43,401 million yen

Headquarters 2-9-32 Nakacho,

Musashino-shi, Tokyo 180-8750, Japan

Number of Employees:

Subsidiaries

17,670 (Yokogawa Group) 2,242 (Yokogawa Electric Co.)

115 outside Japan

Founded: September 1, 1915

Information Disclosure Framework

Results

Yokogawa comprehensively discloses its value creation story in the Yokogawa Report, which provides a summary based on medium- to long-term impact with regard to corporate value and business models, and in the Yokogawa Sustainability Report, which summarizes the Company's impact on society and the environment.

and Affiliates: 13 in Japan

Impact on society and the environment

Annual

Securities Report

Impact on corporate value and business

Yokogawa Report

Yokogawa Sustainability Report

Medium- to long-term perspective

Further information is disclosed on our website.

Information Disclosed URL

Yokogawa Electric Corporation's website

https://www.yokogawa.com/

Yokogawa Report https://www.yokogawa.com/about/ir/reports/annual/

Sustainability Data https://www.yokogawa.com/about/sustainability/sustainabilityinfo/

sustainability-data/

GRI Standards Index https://www.yokogawa.com/about/sustainability/sustainabilityinfo/gri/

Climate Strategy (Response to TCFD) https://www.yokogawa.com/about/sustainability/climate-strategy-

response-to-tcfd/

Nature-related Disclosures (Response to TNFD)

https://www.yokogawa.com/about/sustainability/initiatives-for-biodiversity-response-to-tnfd/

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Yokogawa Sustainability Report

2025

Introduction Our Goals Our Stories Social Environment Governance Information

Yokogawa Sustainability Report

Chapter 2

Our Goals

11 Chapter 5 Environment 40

12 Yokogawa's Vision

13 Materiality Analysis

14 Sustainability Indicators

• Sustainability Transition Sales

  15 Sustainability Indicators

• Social Impact Indicators

41 Environmental Management

43 Environmental Practices

44 Initiatives toward Achieving Carbon Neutrality

48 Environmental Initiatives at Business Facilities

Chapter 1 Introduction

1 Chapter 3 Our Stories

16 Chapter 6

Governance 51

1. The Yokogawa Philosophy and History of Sustainability

2. Editorial Policy

3. Contents

4. Highlights of the 2025 Yokogawa Sustainability Report

5. Message from the President

7 Yokogawa Business Overview

10 Stakeholder Engagement

17 Stories from Our Business Segments

21 Case Study of Contribution

1. Concept for AI Solutions - AI First Manufacturing

2. Sustainability Guiding Principles Covering the Product Lifecycle

- Trusted Green

52 Sustainability Governance

54 Risk Management

56 Code of Conduct and Compliance

60 AI Governance

61 Supply Chain Management

64 Information Security

67 Privacy and Data Protection

68 Quality Assurance

How to use this Sustainability Report

In this report, navigation features are available for moving between pages and for opening external websites.

Chapter 4 Social 28

29 Human Resource Management

32 Comfortable Work Environment

35 Occupational Health & Safety

37 Respect for Human Rights

39 Community Engagement

Chapter 7 Information 69

1. Sustainability Data

2. Third-Party Verification and External Evaluations

* Open an external website

• Move to the relevant page

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• Move to the relevant page

Clicking on an item of the Index Guide available on the top of each page, or an item in the

Contents page of this PDF file will bring you to the relevant page. 3

Yokogawa Sustainability Report

Introduction Our Goals Our Stories Social Environment Governance Information

Highlights of the 2025 Yokogawa Sustainability Report

Guided by the Yokogawa spirit that has been carried forward since our founding,

Through the delivery of SCADA systems,

we contribute to ensuring

together with customers

lipid-based analysis at a single-cell level

We established the "Trusted Green" as our sustainability policy that considers the

entire product supply

Contributing to customers' energy conservation and

chain and lifecycle.

We achieved a record-high employee engagement score of 82%. We aim to further increase this.

We are making steady progress with actions to achieve net zero fiscal year 2030 Scope 1 and 2 emissions. As a result of cooperation with suppliers, Scope 3 emissions decreased year-on-year.

We are contributing to solving customers' issues by leveraging Yokogawa's AI.

Sustainability Management

Yokogawa regards sustainability as a key management issue and is continuously working on the

We incorporate sustainability into management strategy, aiming to both

expand our contributions to society

The Company has established a risk management system and

appropriately controls

We have established medium- to long-term metrics and manage progress to achieve the Three Goals.

improvement of governance.

and the environment while achieving

significant business growth.

sustainability-related risks.

Sustainability transition sales

Sustainability Governance

Yokogawa's Vision

Risk Management

Social Impact Indicators

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