Disclosure Policy

This website discloses information on the Yokogawa Group’s policy for sustainability and ESG (Environment, Society, and Governance).
The information shown on this website is the Yokogawa’s sustainability policy, commitment and records with items to be disclosed with priority (materiality) defined, mainly using for reference the items required by “GRI standards” to be disclosed. The reliability of the information has been enhanced by undergoing guarantee by a third party. In addition, the information has been made easy to be searched as information on environment, society, and governance is separately shown and a GRI standards comparison table is created.

The information on this website is also available in PDF documents that can be downloaded from the yearly archives.

For financial information of the Yokogawa Group and ESG information closely related to its business strategies, refer to the investor relations website or “Yokogawa Report (annual report).”

We hope that readers will gain a better understanding of the Sustainability activities of the Yokogawa Group through this website.

Period Covered by This Report

April 1, 2017 through March 31, 2018
Where appropriate, information on events occurring outside this period may be included.

Scope of Data

This report covers Yokogawa Electric Corporation and its Group companies. When data having a different scope is provided, that is noted.

Intended Readership

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

Company Names

In this report, "Yokogawa" and "Yokogawa Group" refer to Yokogawa Electric Corporation and its affiliates, "Yokogawa Electric Corporation" is only used with reference to Yokogawa Electric Corporation.

Reference Guidelines

  • GRI Standards, published by the Global Reporting Initiative
  • Environmental Reporting Guidelines (Fiscal year 2012 version), published by the Ministry of the Environment, Japan
  • Environmental Accounting Guidelines (Fiscal year 2005 version), published by the Ministry of the Environment, Japan

Materiality Assessment to Identify Priority Disclosure Items

As disclosing the sustainability information of the Yokogawa Group, items to be disclosed with a priority (materiality) are defined using “GRI 101: Foundation” of the GRI Standards for reference.

Sustainability issues were first extracted based on assessment by outsiders such as ESG assessment organizations. The importance of these issues has been assessed on two axes: “impact on assessment or decision making by stakeholders” and “significance of impact on economy, environment, and society.”

“Impact on assessment or decision making by stakeholders” takes into consideration ESG assessment criteria for each industry type, such as “Dow Jones Sustainability Index” and “FTSE Russel ESG Ratings,” as well as assessment by employees, who are important stakeholders. “Significance of impact on economy, environment, and society” takes into account relevance of “Global Risks Report 2018 (World Economic Forum)” with Yokogawa’s business description and customers.


Priority Disclosure Items (Materiality)

Priority disclosure items GRI Page Management Approach (GRI 103-1, 2, 3)

Products stewardship and
customer relationship


Environmentally Friendly Products
Information Security

Environmentally Friendly Products
Information Security

Climate change


Stopping Climate Change / Net-zero emissions
Global Warming Prevention

Environmental Management System

Environmental reporting


Environmental Practices

Environmental Management System



Anti-corruption and Compliance

Anti-corruption and Compliance

Innovation management

Research & Development

Research & Development


Materiality Matrix