Environmental Controls

Environmental Impact

JDI’s business activities consist of inputting energy and resources for product production, which are accompanied by outputs such as CO₂, waste, and so on. An overview of this is shown in the following diagram (covering all domestic Fabs + global manufacturing subsidiary in FY2023). The basis of JDI’s environmental improvement activities lies in reducing the amount of input and output, and JDI works to address such activities by comprehending each of these items for every area in a detailed manner.

＊1 The priority controlled chemical substances refer to 38 substances selected as being subject to priority control efforts.
＊2 The CO₂ emissions factor from electrical power in Japan is based on 0.438 t-CO₂/MWh (emissions factor released by each power company [factor used to convert greenhouse gas emissions of a specific emitter]). The other conversion factors are from the Act on the Rational Use of Energy and the Act on Promotion of Global Warming Countermeasures. The CO2 emission factor overseas uses the local emission factor.
＊3 Among substance covered in the Act on Promotion of Global Warming Countermeasures, JDI uses the term “greenhouse gases” to refer to these seven substances: PFC (CF₄, c-C₄F₈), HFC (CHF₃, C₂HF₅), SF₆, NF₃ and N₂O. Emission factors of AR5 are used.
＊4 Within Japan, this refers only to emissions of the 38 priority controlled chemical substances designated by JDI, and for overseas it refers only to emissions of VOC.

Chemical Substance Management

Our products contain a variety of chemical substances, some of which are considered hazardous and pose a risk of environmental contamination. To prevent this, numerous laws and regulations have been enacted in countries around the world. In addition to complying with these laws and regulations, we also manage chemical substances appropriately at every stage of design and manufacturing to meet customer requirements.

Management of Chemical Substances Contained in Products

Based on laws and regulations, including the RoHS Directive, the ELV Directive, and the REACH Regulation, as well as requests from JDI’s customers, JDI manages chemical substances contained in products with the understanding and cooperation of JDI’s business partners. JDI has also established a control method that considers the risk of chemical transfer to products from indirect materials, such as jigs, fixtures, tools, and equipment that come into direct contact with products during manufacturing, and verifies that no restricted substances are used. We compile these items into a database and confirm that our products comply with laws and regulations and customer requirements at the design stage before they are shipped to our customers.

Management of Chemical Substances

We manage chemical substance control based on the following basic principles

Compliance with Laws and Regulations

JDI has established a system to comply with legal regulations related to the chemical substances it uses and those contained in its products. In addition to ensuring compliance with these regulations, JDI monitors the use of chemical substances based on customer requirements.

JDI also regularly monitors trends in major environmental regulations concerning hazardous substances in Europe, the United States, and Asia, and takes proactive measures in response. At the 11th Conference of the Parties to the Stockholm Convention on Persistent Organic Pollutants (POPs Convention) held in May 2023, Dechlorane Plus and UV-328 were newly added to Annex A (Elimination). JDI has proactively prohibited their inclusion in new products ahead of the agreement of the new regulations. JDI will continue to monitor regulatory trends and take appropriate responses as necessary.

Measurement of Chemical Substances and Use of Analysis Results

JDI regularly measures the chemical substances contained in its atmospheric emissions and discharged wastewater. JDI also require JDI's suppliers to conduct detailed analysis of specific parts and materials to prevent accidental contamination with prohibited substances. As part of our internal management, we use XRF measurement equipment at each manufacturing site to monitor whether or not prohibited substances are contained in specific parts and high-risk substances, and we strive to prevent their contamination.

JDI monitors the use of chemical substances and promotes the reduction of discharged amounts of chemical substances in order to respect biological diversity and contribute to the preservation of the environment and a sustainable society.

Green Procurement and Environmentally Friendly Products

JDI has established the Green Procurement Guidelines and conducted evaluations of JDI's suppliers management systems to ensure proper operation as well as convey the information on laws and regulations and customer requirements to our business partners and ask these business partners to comply with them. Through promoting these initiatives and JDI’s activities to reduce environmental impact, we are striving to design and produce environmentally friendly products.

Environmentally Friendly Products

At JDI, we strive to design, develop, and manufacture products together with business partners who share the values of environmental protection and the realization of a sustainable society, in order to meet the environmental needs of our customers, recognizing that our products are part of the life cycle of the products our customers place on the market.
JDI contributes to the realization of a sustainable society through business activities that include incorporating customers’ environmental requirements into JDI’s products, procuring materials from trustworthy business partners, and increasing JDI’s productivity. JDI’s efforts to preserve the ecosystem even extend to the local region around each fab.

Minimizing Environmental Risks

Compliance with Regulations at JDI Fabs

JDI is committed to strict compliance management within its environmental management system. Regular measurement and control of wastewater, exhaust gases, noise, vibration, and odor are conducted to ensure environmental standards are met. In the event of any significant environmental violations, JDI ensures horizontal deployment of information across all relevant sites to prevent recurrence.

In FY2023, there were three instances of environmental violations in Japan. JDI responded promptly and appropriately, implemented measures to address the root causes, and advanced efforts to prevent recurrence. Moving forward, JDI will continue to strive for even more thorough compliance management and sustained regulatory conformity.

Compliance with Regulations in Products

JDI controls the use of chemical substances in manufacturing based on internal rules that classify substances in accordance with applicable laws and regulations. The use of chemical substances contained in products is managed in compliance with the RoHS Directive, REACH Regulation, and other relevant legal frameworks, as well as through green procurement standards. This management approach is applied at JDI's global manufacturing subsidiary to prevent environmental contamination, ensure compliance with legal requirements, and reduce environmental impacts.

Responding to Climate Change

JDI strives to understand and recognize the various impacts of climate change that affect its business, as well as the needs and expectations of stakeholders. This understanding is reflected throughout the company via its environmental management system. In line with these efforts, JDI positions climate change measures as a key initiative. It analyzes climate-related risks, multiple future scenarios, the certainty of strategies, and the continuity of its business under such conditions, based on global initiatives. JDI is committed to transparent disclosure of this information.