Environmental Initiatives

In recent years, corporate environmental activities have come to span a wide range of areas, including pollution prevention, the reduction of greenhouse gas emissions and waste materials, regulations on chemical substances, and regulations on products containing hazardous substances. With our CEO's approval and in accordance with our Environmental Policy and Action Guidelines, we promote the reduction of the environmental impact of our production activities and develop and sell environmentally-conscious products that improve our customers’ environmental performance.

We are sharing Environmental Action Guidelines with Renesas Group employees through in-house trainings.

Environmental Policy

We will operate our business in a way that will allow us to both preserve the environment and support the healthy lives of people, with the goal of realizing a sustainable society.

Environmental Action Guidelines

At Renesas, we will strive to foster a sustainable society that can last decades, by providing environmentally-friendly semiconductor products and solutions throughout their entire life cycle, from research and development, design, procurement, production, sales, distribution, use, to disposal.

We are committed to reducing our environmental impact and preventing environmental pollution in all areas of our business. At the same time, we will comply with environmental laws and regulations and continue to improve our global environmental management system.

  1. Response to Climate Change
    We will strive to reduce energy consumption throughout the value chain, use energy efficiently and minimize greenhouse gas emissions, to support the goal of becoming carbon neutral.
  2. Effective Use of Resources 
    We will make efficient use of all resources required for our businesses. In particular, we will strive to use water resources appropriately, minimize waste, and promote recycling.
  3. Biodiversity Conservation
    We will contribute to biodiversity conservation through our business activities and promote the concept of biodiversity that is critical in supporting a rich and healthy society.

We will help build a better society by proactively disclosing environmental information with our stakeholders to establish mutual understanding and by actively communicating with them.

The Three Environmental Cornerstones of Our Environmental Activities

Key topics regarding our environmental activities are 1) compliance with laws and regulations, 2) reduction of environmental impact, 3) development of eco-friendly products, and 4) the maintenance of good relations with stakeholders.

We promote environmental management via a system called "Eco-Management Activities", with "eco-factory", "eco-product" and "eco-communication" initiatives as the three cornerstones of our environmental activities.

  1. Eco-Factory Initiatives [Initiatives to Reduce the Environmental Impact of Factories]
    Initiatives to reduce the environmental impact at manufacturing sites by limiting and reducing greenhouse gas emissions and controlling chemical substances used in manufacturing
  2. Eco-Product Initiatives [Initiatives to Develop Environmentally-Friendly Products]
    Initiatives to provide environmentally-conscious semiconductors throughout the product life cycle, such as the management of chemical substances contained in products and the development of products with low power consumption
  3. Eco-Communication Initiatives [Initiatives to Promote Environmental Education and Disclose Environmental Information]
    Initiatives to raise employee awareness with environmental education, and activities to publicly promote Renesas’ environmental efforts
Environment Management System

Business Activities and its Environmental Impacts

Semiconductor products and solutions provided by Renesas contribute to global environmental conservation activities, such as the prevention of global warming and effective use of resources, through energy saving and downsizing of customers' products and systems. On the other hand, it is also true that manufacturing consumes energy such as electricity and fuel, as well as resources such as chemical substances and water, and emits waste, effluents and emissions, which have a major impact on the environment.

We strive to reduce our environmental footprint by having a detailed understanding of our input and output volumes from production to logistics, and systematically reducing these inputs and outputs. Furthermore, we will continue to provide customers with eco-friendly products that are efficiently manufactured with limited resources and energy.

For more details on environmentally-friendly products, please refer to Sustainable Products and Solutions.

Overview of Environmental Load Reduction for 2023

In order to calculate CO2 emission level calculation in relation to electricity, we have used the factor provided by the "List of Calculation Methods/ Emission Factors in the Calculation, Report and Publication System" of the Ministry of the Environment and the Ministry of Economy, Trade and Industry of Japan, adjusted conversion factors for individual power businesses based on the Act on Promotion of Global Warming Countermeasures. For figures that represent outside of Japan, the latest values for the each fiscal year supplied by power supply companies. When the CO2 emission levels are uncertain, we use the conversion factors of previous year. For the CO2 emission factor for gas and fuel at the time of calculation, we used the factor provided by the "List of Calculation Methods/ Emission Factors in the Calculation, Report and Publication System" of the Ministry of the Environment and the Ministry of Economy, Trade and Industry of Japan.

Activity Results and Plans

CategoriesActivities in 2023Results of 2023Internal EvaluationActivities in 2024
Eco-Management Activities
 Promotion of environmental performance improvement measures and maintenance of ISO14001 certificationDirect audit by ISO certification body, certification renewal completedPromotion of environmental performance improvement measures and maintenance of ISO14001 certification
Eco-Factory Initiatives
Reduce 5 years average energy consumption per basic unit by 1% or more (effort target of the Energy Conservation Law)
  • 5-year average basic unit results: Renesas Electronics (Japan): 1% reduction, Renesas Semiconductor Manufacturing: 1.2% reduction
  • Expected to obtain an S rank in the evaluation of business classification by the Energy Conservation Law
Reduce 5 years average energy consumption per basic unit by 1% or more (effort target of the Energy Conservation Law)
Maintain PFC emission to below emission levels of 2015 (per wafer area)Reduced PFC emission by 0.021 points compared to emission levels of 2015 (per wafer area)Maintain PFC emission to below emission levels of 2015 (per wafer area)
Eco-Product Initiatives
Appropriately respond to various regulations in Japan and overseas as well as customer demandsNo domestic or foreign environmental laws and ordinances violatedAppropriately respond to various regulations in Japan and overseas as well as customer demands
Maintain 90% or more Green Devices ratio of newly mass produced productsGreen Devices ratio in 2023: 96%Maintain 90% or more Green Devices ratio of newly mass produced products
Eco-Communication Initiatives
Improve environmental information disclosure to stakeholders
  • Third-party verification of environmental data
  • Publication of Sustainability Report
Improve environmental information disclosure to stakeholders
Renewed training materials for rank-based training and environmental e-learning / conducted training
  • Implementation of e-learning for new employee education, new manager education, etc.
  • Regular environment-related information sharing within the company
Renewed training materials for rank-based training and environmental e-learning / conducted training
Active promotion of biodiversity conservation activities
  • Implemented 120 biodiversity activities at manufacturing sites and offices globally.
  • Introduced activity self-assessment indicators to global sites.
Active promotion of biodiversity conservation activities

Note 2: Perfluoro Compounds (in the semiconductor industry, this includes CHF3, CF4, C2F6, C3F8, C4F8, SF6 and NF3)

Eco-Management: Environmental Management Activities

We promote environmental activities by establishing environmental management systems at each site, including affiliated companies.

Environmental Management System

The Environmental Policy and the Basic Rules of Environmental Management are defined in Renesas's Basic Management Rules. We have established an environmental management system across all offices and sites including partner companies to promote environmental activities. The Environmental Promotion Department oversees all of Renesas’ environmental activities. The Environmental Promotion Department reports and makes suggestions on results of various environmental activities, challenges and issues to The Chief Environmental Officer appointed by top management.

Positioning of the Environment Promotion Department in the company organization
Organization Diagram for the Renesas Group Environmental Activities

Compliance System for Environmental Laws and Internal Audits of the Environmental Management System

We conduct annual environmental audits at all of our sites to ensure continuous improvement of our environmental management system and performance. In 2023, 57 recommendations were made, including 22 requests for improvement. We implement reliable audits by using auditors qualified as environmental management system auditors certified under the Japanese Registration of Certified Auditors (JRCA). In addition, we have established a system to share information across all sites in response to the increasingly strict environmental laws and regulations, and we keep up to date with compliance systems and compliance status.

ISO14001 Certification at All Sites

As of 2023, all of our global manufacturing sites have achieved ISO14001 certification, an international standard for environmental management systems. We will continue to maintain our sites' certification status effectively and efficiently.

Japan Sites

Company nameAuditing bodyRegistration numberExpiration dateRegistration certificate
Renesas Electronics Corp.
Headquarters (Toyosu) / Chubu Office / Kansai Office /
Musashi Office / Takasaki Factory / Naka Factory /
Yonezawa Factory / Oita Factory / Nishiki Factory
Renesas Semiconductor Manufacturing Co., Ltd.
Naka Factory / Takasaki Factory / Saijo Factory
/ Kawajiri Factory
Renesas Engineering Services Co., Ltd.
Musashi Headquarters / Takasaki Office


Company NameAuditing bodyRegistration NumberExpiration dateRegistration certificate
Renesas Electronics America Inc. (Palm Bay)DNV GLCERT-03115-2004-AE-HOU-ANAB2025/8PDF
Renesas Semiconductor KL Sdn.Bhd.SIRIMEMS 001132025/4PDF
Renesas Semiconductor (Beijing) Co., Ltd.CCCI02123E10441R7M
Renesas Semiconductor (Suzhou) Co., Ltd.CCCI02122E10767R7M
Renesas Semiconductor (Malaysia) Sdn. Bhd.
Renesas Semiconductor (Kedah) SDN. BHD.
Renesas Semiconductor Technology (M)
SIRIMEMS 001052024/8PDF
Renesas Electronics (Penang) Sdn. Bhd.DQS10004471UM152026/9PDF
Renesas Electronics Germany GmbHTÜV SÜD12 104 19913 TMS2024/12PDF
Dialog Semiconductor GmbHTÜV SÜD12 104 14453 TMS2025/7PDF
Renesas Design Bingen GmbHTÜV73 104 7952027/5PDF

Supplementary: Our Group Sites

Official Name LocationFunction
Renesas Semiconductor (Beijing)ChinaManufacturing
Renesas Semiconductor (Suzhou)ChinaManufacturing
Renesas Semiconductor KLMalaysiaManufacturing
Renesas Semiconductor (Malaysia)MalaysiaManufacturing
Renesas Semiconductor (Kedah)MalaysiaManufacturing
Renesas Semiconductor Technology (M)MalaysiaManufacturing
Renesas Electronics (Penang) Sdn. Bhd.MalaysiaManufacturing
Renesas Semiconductor Design (Malaysia) Sdn. Bhd.MalaysiaDesign
Renesas Electronics America Inc.USAManufacturing, Sales
Renesas Electronics Brasil-Servicos Ltda.BrazilSales
Renesas Electronics Canada LimitedCanadaSales
Renesas Electronics (China) Co., Ltd.ChinaSales
Renesas Electronics (Shanghai) Co., Ltd.ChinaSales
Renesas Electronics Hong Kong LimitedChinaSales
Renesas Electronics Taiwan Co., Ltd.TaiwanSales
Renesas Electronics Korea Co., Ltd.KoreaSales
Renesas Electronics Singapore Pte. LtdSingaporeSales
Renesas Electronics Malaysia Sdn.Bhd.MalaysiaSales
Renesas Electronics India Pvt. Ltd.IndiaSales
Renesas Electronics Europe GmbHGermanySales, Design
Renesas Semiconductor Design (Beijing) Co., LtChinaDesign
Renesas Design Vietnam Co., Ltd.VietnamDesign

Compliance to Laws Related to the Environment

We accurately comply with all relevant laws and regulations of each country and region we operate in, and set and maintain a voluntary management standard which is stricter than various laws. If these standards are violated or if we receive any complaints, we reinforce environmental risk management measures by sharing the cause, countermeasures and preventative measures within the entire Group.In 2022, there were no violations of laws and ordinances or complaints.

Violations of laws related to the environment, environmental accidents and number of
complaints received
Violations of laws and regulations1000

Environmental Accounting

Due to the characteristics of the semiconductor industry having a large impact on the environment, we believe it’s important to clarify the validity of necessary costs in environmental conservation activities, make appropriate investments and evaluate the results of such investments. These steps are needed to mutually balance environmental conservation with our business. To further support this goal, we have introduced Environmental Accounting since the establishment of Renesas.

Results for Fiscal Year 2023 (January 1, 2023 to December 31, 2023)

protection costs
(Millions of yen)
(Millions of yen)
(Millions of yen)
impact reduction
Pollution prevention (air, water, etc.)1,1802,92649Energy
Global environmental protectionEnergy-saving measures, global warming prevention, etc.9501,003887
Resource circulationEfficient use of resources through waste reduction, water conservation, recycling, etc.42480817
Upstream/downstreamGreen procurement, product assessment, collection and recycling of packaging materials, etc.00-
Management activitiesMaintenance and operation of environmental management, education, etc.0261-
Research and DevelopmentR&D to reduce the environmental impact of products and manufacturing processes08-
Social ActivitiesDonations and support for local volunteer activities, environmental preservation organizations, etc.012-
Environmental damageRemediation of soil and groundwater contamination, compensation related to environmental conservation, etc.94-
Investment,Expenses, Economic Impacts
  • Investments:
    In fiscal 2023, we invested 2,171 million yen, focusing on measures to prevent air pollution, water pollution, and other pollution. The main contents are measures to prevent global warming and save energy, such as the introduction of equipment for efficient energy use, but we also implemented pollution prevention measures such as measures against soil and groundwater contamination
  • Expenses:
    Expenses for fiscal 2023 amounted to 4,693 million yen. The main items included 1,849 million yen for water pollution prevention, 831 million yen for air pollution prevention, and 909 million yen for greenhouse gas reduction and energy conservation.
  • Economic Impacts:
    The economic effect in fiscal 2023 was 1,753 million yen. In addition to the effects of energy-saving measures and resource recycling, we recorded a profit of 716 million yen from the sale of valuable waste from recycling. Please note that economic effects based on hypothetical calculations are not included.

Participating Initiatives and Organizations

Our purpose in promoting our semiconductor solution business is “to Make Our Lives Easier.” As part of our efforts to advance our business, we are proactively participating in global initiatives and organizations to contribute to solving social issues across the globe.

(Japan Electronics and Information Technology Industries Association)
We participate in the Semiconductor Environmental Strategy Committee as well as working groups and task forces under the committee
Nijyu-maru Project (Double 20 campaign)We participate in the Nijyu-maru Project to realize the Aichi Biodiversity Targets established to conserve biodiversity
-Ministry of the Environment: Secretariat of Environmental Reporting Platform Development Pilot ProjectJoined in 2015
-Effective Action on Global Warming Prevention by Japanese Electrical and Electronics IndustriesJoined the Nippon Keidanren’s Commitment to a Low Carbon Society promoted by the electric and electronic industry
Water Project by the Ministry of EnvironmentIn February 2022, as part of our efforts to conserve water resources, Renesas joined the "Water Project” launched by the Ministry of Environment in Japan with a mission to "maintain or restore a healthy water cycle."

Editing Policies of “Environmental Initiatives”

  1. Target areas
    We include the entire Renesas Group consisting of Renesas headquarters, sales offices, design and development sites and all manufacturing sites as the scope of this report. The corresponding sites consume and emit approximately over 90% of the energy use of the Group as a whole. When the entire Group is not included within the scope, we have listed the target companies separately.
  2. Target period
    We mainly report the initiatives undertaken in 2023 (from January 1, 2023 to December 31, 2023) as well as some background information on past initiatives and initiatives undertaken in the period leading up to the disclosure, and future outlooks and plans.

(Caution regarding future predictions)
Renesas Electronics Group's plans, strategies, and other forecasts described in this environmental activity are based on information currently available to the Renesas Electronics Group and are determined by the Renesas Electronics Group, and include potential risks and uncertainties. Therefore, please be aware that actual activities and results may differ from these forecasts due to various factors.

Contributing to SDGs

Renesas’ efforts in Environmental Initiatives contributes to these Sustainable Development Goals targets:

Goal12 Responsible Production and Consumption

12.2 By 2030, achieve the sustainable management and efficient use of natural resources