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
Environmental 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 2022

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.

* Figures were revised on July 1, 2023. Please refer to the Editing Policies for details.

Activity Results and Plans

Categories Activities in 2022 Results of 2022 Internal Evaluation Activities in 2023
Eco-Management Activities

Promotion of environmental performance improvement measures and maintenance of ISO14001 certification

Direct audit by ISO certification body, certification renewal completed

Promotion 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 REL: 3% reduction, RSMC: 5.6% 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 0.018 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 demands No domestic or foreign environmental laws and ordinances violated

Appropriately respond to various regulations in Japan and overseas as well as customer demands

Increase Green Devices ratio of newly mass produced products Green Devices ratio in 2022: 94.4% Maintain 80% 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 SBTi certification for environmental targets Improve environmental information disclosure to stakeholders

Renew contents of employee training and e-learning and conduct various 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
Continue environmental and social contribution activities Implemented 56 biodiversity activities at manufacturing sites and offices in Japan.
Introduced activity self-assessment indicators
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 company’s top management.

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

(The Yamaguchi Factory of Renesas Semiconductor Manufacturing Co., Ltd. closed at the end of June 2022.)

About company name abbreviations:

[Manufacturing] REGG: Renesas Electronics Germany GmbH, REPG: Renesas Electronics (Penang) Sdn. Bhd., RSB: Renesas Semiconductor (Beijing) Co., Ltd., RSC: Renesas Semiconductor (Suzhou) Co., Ltd., RSK: Renesas Semiconductor (Kedah) Sdn. Bhd., RSKL: Renesas Semiconductor KL Sdn. Bhd., RSM: Renesas Semiconductor (Malaysia) Sdn. Bhd., RST: Renesas Semiconductor Technology (M) Sdn. Bhd.
[Design] RDB: Renesas Semiconductor Design (Beijing) Co., Ltd., RDM: Renesas Semiconductor Design (Malaysia) Sdn. Bhd. ​, RVC: Renesas Design Vietnam Co., Ltd. 
[Sales] REBR: Renesas Electronics Brasil-Servicos Ltda., RECA: Renesas Electronics Canada Limited, RECH: Renesas Electronics (China) Co., Ltd., REE: Renesas Electronics Europe GmbH, REHK: Renesas Electronics Hong Kong Limited, REIL:  Renesas Electronics Israel Ltd., REIN: Renesas Electronics India Pvt. Ltd., REKR: Renesas Electronics Korea Co., Ltd., REML: Renesas Electronics Malaysia Sdn.Bhd., RESG: Renesas Electronics Singapore Pte. Ltd, RESH: Renesas Electronics (Shanghai) Co., Ltd., RETW: Renesas Electronics Taiwan Co., Ltd. ​ 
[Sales, Manufacturing] REA: Renesas Electronics America Inc.

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. Although In 2022, we conducted environmental audits at the part of sites through online, and 76 recommendations were made, including 28 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

All of our domestic and overseas manufacturing sites have ISO14001 certification, an international standard for environmental management systems. We will continue to maintain the ISO14001 certification status effectively and efficiently.

Domestic Sites

Company name Auditing body Registration number Expiration date Registration certificate
Renesas Electronics Corp.
Headquarters (Toyosu) / Chubu Office / Kansai Office /
Musashi Office / Takasaki Factory / Naka Factory /
Yonezawa Factory / Oita Factory / Nishiki Factory
JQA JQA-EM3490 2024/10 PDF
Renesas Semiconductor Manufacturing Co., Ltd.
Naka Factory / Takasaki Factory / Saijo Factory
/ Kawajiri Factory
Renesas Engineering Services Co., Ltd.
Musashi Headquarters / Takasaki Office


Company Name Auditing body Registration Number Expiration date Registration certificate
Renesas Electronics America Inc. (Palm Bay) DNV GL CERT-03115-2004-AE-HOU-ANAB 2025/8 PDF
Renesas Semiconductor KL Sdn.Bhd. SIRIM EMS 00113 2025/4 PDF
Renesas Semiconductor (Beijing) Co., Ltd. CCCI 02123E10441R7M
2026/5 PDF
Renesas Semiconductor (Suzhou) Co., Ltd. CCCI 02122E10767R7M
2025/06 PDF
Renesas Semiconductor (Malaysia) Sdn. Bhd.
Renesas Semiconductor (Kedah) SDN. BHD.
Renesas Semiconductor Technology (M)
SIRIM EMS 00105 2024/8 PDF
Renesas Electronics (Penang) Sdn. Bhd. DQS 10004471UM15 2026/9 PDF
Renesas Electronics Germany GmbH TÜV SÜD 12 104 19913 TMS 2024/12 PDF
Dialog Semiconductor GmbH TÜV SÜD 12 104 14453 TMS 2025/7 PDF
Renesas Design Bingen GmbH TÜV 73 104 795 2024/5 PDF

Supplementary: Our Group Sites

Official Name  Location Function
Renesas Semiconductor (Beijing) China Manufacturing
Renesas Semiconductor (Suzhou) China Manufacturing
Renesas Semiconductor KL Malaysia Manufacturing
Renesas Semiconductor (Malaysia) Malaysia Manufacturing
Renesas Semiconductor (Kedah) Malaysia Manufacturing
Renesas Semiconductor Technology (M) Malaysia Manufacturing
Renesas Electronics (Penang) Sdn. Bhd. Malaysia Manufacturing
Renesas Semiconductor Design (Malaysia) Sdn. Bhd. Malaysia Design
Renesas Electronics America Inc. USA Manufacturing, Sales
Renesas Electronics Brasil-Servicos Ltda. Brazil Sales
Renesas Electronics Canada Limited Canada Sales
Renesas Electronics (China) Co., Ltd. China Sales
Renesas Electronics (Shanghai) Co., Ltd. China Sales
Renesas Electronics Hong Kong Limited China Sales
Renesas Electronics Taiwan Co., Ltd. Taiwan Sales
Renesas Electronics Korea Co., Ltd. Korea Sales
Renesas Electronics Singapore Pte. Ltd Singapore Sales
Renesas Electronics Malaysia Sdn.Bhd. Malaysia Sales
Renesas Electronics India Pvt. Ltd. India Sales
Renesas Electronics Europe GmbH Germany Sales, Design
Renesas Semiconductor Design (Beijing) Co., Lt China Design
Renesas Design Vietnam Co., Ltd. Vietnam Design

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
2019 2020 2021 2022
Violations of laws and regulations 0 1 0 0
Complaints 0 0 0 0

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 2022 (January 1, 2022 to December 31, 2022)

Item Contents Environmental
protection costs
(Millions of yen)
(Millions of yen)
(Millions of yen)
impact reduction
Pollution prevention (air, water, etc.) 1,333 2,356 42 Energy
Global environmental protection Energy-saving measures, global warming prevention, etc. 1,025 983 921
Resource circulation Efficient use of resources through waste reduction, water conservation, recycling, etc. 0 581 762
Upstream/downstream Green procurement, product assessment, collection and recycling of packaging materials, etc. 0 0 -
Management activities Maintenance and operation of environmental management, education, etc. 0 281 -
Research and Development R&D to reduce the environmental impact of products and manufacturing processes 0 5 -
Social Activities Donations and support for local volunteer activities, environmental preservation organizations, etc. 0 13 -
Environmental damage Remediation of soil and groundwater contamination, compensation related to environmental conservation, etc. 9 8 -
Total 2,367 4,228 1,725  
Environmental Accounting
  • Investments:
    In 2022, we invested 2,367 million yen for pollution prevention and energy conservation measures, etc. We invested mainly related to reducing soil contamination risk and installed and replaced equipment which allows efficient use of energy.
  • Expenses:
    In 2022, we spent 4,228 million yen as expenses. The main items included maintenance and management costs for equipment related to pollution prevention at each production site, and depreciation costs related to investments in energy-saving equipment.
  • Economic Impacts:
    The economic impact in 2022 was 1,725 million yen. The breakdown of this mainly consists of impacts from energy conservation measures, as well as the recording of 713 million yen in sales of waste through recycling. However, this figure does not include economic impacts based on hypothetical calculations.

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.

Logo Name Activities
(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 Project Joined in 2015
- Effective Action on Global Warming Prevention by Japanese Electrical and Electronics Industries Joined the Nippon Keidanren’s Commitment to a Low Carbon Society promoted by the electric and electronic industry
Water Project by the Ministry of Environment In 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 in and outside of Japan 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 2022 (from January 1, 2022 to December 31, 2022) 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.

(Regarding the correction measures for miscalculations in the emission factors for year of 2021)
The Ministry of Economy, Trade and Industry (METI) has reported that there were some errors in the calculation of publication “Emission Factors by Electricity Providers (2021 Actual Results)” published in January 2023, and the following items have been rectified. See the details in Japanese (METI).
Scope 1 and Scope 3 emissions and Scope 2 GHG emissions from outside Japan and activities other than electric power have not been revised.

  2022 (Unit: t-CO2)
After revision (July, 2023) Before revision
Japan World wide Japan World wide
Total Emissions (S1+S2+S3) - 3,006,770 - 3,008,414
Total Emissions (S1+S2) 758,433 913,684 760,077 915,328
Scope2 Indirect Emissions 566,890 717,422 568,534 719,066
Purchased Electricity (Market Standards) 552,372 699,555 554,015 701,199
Purchased Electricity (Location Standards) 526,843 719,323 528,057 720,536
Reduction % from the previous year (FY2021) - 6.8% - 6.6%

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