Table of Contents
Company Profile

2

Message from Our President

3

Environmental Policy

4

Topics6

Operation of Self-Consumption Solar Power Generation System

Management Structure for Environmental Conservation

7

Environmental Conservation Team Structure
Environmental Management System (ISO 14001)

Initiatives to Reduce Environmental Impact

8

Environmental Target
Reducing Energy-derived CO2
Reducing Greenhouse Gases (PFCs)
Reducing Waste
Reducing Chemical Substance Emissions

Substance Management in Product Manufacturing

14

Preliminary Assessment of Chemical Substances
Management of Chemical Substances Included in Products
Green Procurement

Countermeasures against Environmental Risks

16

Compliance with Environmental Laws and Regulations
Environmental Measurements
Environmental Facilities
Accident and Emergency Response Training

Environmental Communication

19

Environmental Communication Efforts with Local Community
Efforts to Increase Understanding and Widespread Adoption In-House

Various Data

21

Environmental Measurement Data
PRTR (Ascertain the Emission and Transfer Amounts ofChemical Substances)
Material Balance
KIOXIA Iwate Environmental Report 2023
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Company Profile
Company name:KIOXIA Iwate Corporation

Current address:

6-6, Kitakogyodanchi, Kitakami-City, Iwate

Established on:

December 25, 2017

President:

Koichiro Shibayama

Business contents:

Manufacturing of NAND flash memory

Reporting Period
The “KIOXIA Iwate Corporation Environmental Report 2023” describes our efforts infiscal year 2022 (April 1, 2022 to March 31, 2023). Some content includes reports ofefforts outside of FY2022.

KIOXIA Iwate Environmental Report 2023
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Message from Our President
KIOXIA Iwate Corporation
President and Chief Executive Officer
Chief of environmental conservation

Koichiro Shibayama
KIOXIA Iwate was established as a production base for flash memories. Flash memories
are essential to our everyday lives as a medium that ‘stores’ information such as insmartphones, automobiles, and data centers.
Supply and demand in the flash memory market is constantly changing. Under thesecircumstances, the company is working to strengthen its production system by improving
productivity and training employees in anticipation of medium- and long-term demand.
Many of you may be concerned about the impact of semiconductor manufacturing on thesurrounding environment. KIOXIA Iwate is taking various measures to advance its businesswithout causing any worries or troubles for stakeholders.
Examples of environmental measures include environmental measurements, routine
checks of facilities, and environmental patrols around the plant.
This report summarizes KIOXIA Iwate’s environmental conservation efforts, including
prevention of environmental problems as well as environment-related community
contributions.
We hope that KIOXIA Iwate will be a vibrant presence in the community. I would like tothank you all for your ongoing support and understanding and ask for your continued
support of our business activities.

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Environmental Policy
The KIOXIA Group established the “KIOXIA Group Environmental Policy”
to demonstrate its fundamental philosophy regarding the environment,
and shares the contents of this policy throughout the entire group.

KIOXIA Group’s Environmental Policy
MissionKIOXIA Group’s Environmental Policy ensures we conduct business in a way that enhancesand preserves the environment. Through purposeful, sustainable actions, we’re prioritizing
being responsible stewards of the environment to do our part in maintaining our planet’s
health for years to come.

PolicyIn addition to complying with environmental laws and regulations in the regions in which it
operates, KIOXIA Group considers environmental stewardship to be one of our primary
responsibilities. We take actions to limit our environmental impact throughout our supply
chain of memory, applied, and related software products that support information
infrastructure. From taking systematic and globally accredited steps to reduce our pollution
and greenhouse gas emissions from our manufacturing processes, to regularly auditing andreviewing our activities to constantly improve our environmental management system,KIOXIA Group takes deliberate action to ensure efficient and effective operations.

Implementation
１.We strive to make sustainable memory, applied, and related software products by using
high-capacity, miniaturized and power-saving technologies. We also perform ongoingenvironmental assessments of our products and manufacturing processes, as well as atargeted effort to reduce our overall raw material usage.
２.We are doing our part to help prevent global warming through initiatives that directlyreduce greenhouse gas emissions. This includes the development of energy-saving
technologies – especially within power systems and manufacturing machinery –productivity improvements, and introducing clean energies.
３ .We purposefully take actions aligned with the “three Rs” – reduce, reuse, recycle.
Specifically, we focus on developing resource-saving technologies and implementing
productivity efficiencies, as well as limiting the use of water resources around our plantsites and returning water used in production to the environment after effective purificationKIOXIA Iwate Environmental Report 2023
4

treatment.
４.We limit environmental risk in our operations by being conscious of the chemicals we use
in production and developing technologies that reduce our use of certain chemicals.
Through responsible handling and management of production-related chemicals, we also
strive to prevent associated pollution.
５.We strive to reduce the impact of our business activities on biodiversity, and pursue
activities that aim to preserve biodiversity in order to help conserve the environment.
６.We regularly disclose information and updates on our sustainability efforts – including newenergy-saving technologies – through environmental advertising, exhibitions, media, andcollaboration with various stakeholders including the local communities in which we
operate.
７.We underscore the importance of environmental stewardship with our employees, who
promise to keep sustainability top-of-mind in all business activities.
This Environmental Policy is core to KIOXIA Group’s operations – it is available internallyto global employees of KIOXIA Group and externally to customers, media, and the generalpublic. We are committed to pursuing corporate activities that are in line with policy.
Nobuo Hayasaka
President and Chief Executive Officer
KIOXIA Holdings CorporationKIOXIA Iwate Environmental Report 2023
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Topics
Installation of Self-Consumption Solar Power Generation System
In order to promote the use of renewable energy, KIOXIA Iwate installed the KIOXIAGroup’s first large-scale self-consumption solar power generation system in January 2023.
The new photovoltaic system has a generating capacity of approximately 3.6 MW. The
annual power generation is expected to be approximately 3,500 MWh, which will reduce
CO2 emissions by approximately 1,600 t/year.

Solar Power Generation SystemKIOXIA Iwate Environmental Report 2023
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Management Structure for Environmental Conservation
Environmental Conservation Team Structure
To continuously and effectively promote environmental conservation efforts, KIOXIA Iwate
has established an environmental conversation team structure led by the president.
Clarifying the roles of the organization for environmental conservation will allow us to workon environmental conservation efforts throughout KIOXIA Iwate.
Matters related to environmental conservation are deliberated at the Global Environment
Meeting, which the president attends.
Matters deliberated at the Global Environment Meeting are shared with all employees,
including partner companies, to facilitate clear environmental conservation efforts.

Environmental Conservation Team Structure
Environmental Management System (ISO 14001)
KIOXIA Iwate is run in accordance with our environmental management system (EMS*).
The EMS is a system to address environmental conservation by clarifying theenvironmental impact (environmental risks) caused by business activities such as products
and services.
The KIOXIA Group’s EMS complies with the ISO 14001 international standard andundergoes regular audits by an external organization.

Environmental Management System Operation

ISO 14001-Certification*EMS: Acronym for Environmental Management SystemKIOXIA Iwate Environmental Report 2023
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Initiatives to Reduce Environmental Impact
Environmental TargetKIOXIA Iwate has set target values based on the long-term environmental goals of theKIOXIA Group, which were discussed at the Global Environment Meeting.
By implementing routine reduction efforts and new improvement efforts, we achieved ourenvironmental target values for FY2022 in all categories.

Results of Environmental Targets in FY2022*Intensity: For the intensity target, KIOXIA Iwate’s production memory capacity intensity isused as an indicator to be able to assess efforts.

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Reduce energy-derived CO2
KIOXIA Iwate has organized an “Energy Conservation Committee” to promote companywide efforts to reduce energy-derived CO2*, and is working to reduce the energy used in
manufacturing, power, and shared facilities. The Energy Conservation Committee sets
annual energy-derived CO2 reduction targets for KIOXIA Iwate and formulates and rolls out
CO2 reduction measures. In FY2022, the reduction of energy-derived CO2 emissions was
8,665 t/year.

Energy Conservation Committee Structure

Measures to Reduce Energy-Derived CO2*Energy-derived CO2: CO2 emitted from the combustion of fuels and the use of supplied
electricity and heat

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Reducing Greenhouse Gases (PFCs*)KIOXIA Iwate deals with a wide variety of greenhouse gases in order to manufacture
semiconductors.
In particular, PFCs are essential for manufacturing semiconductors. However, they have avery large impact on global warming, and if discharged directly, they will cause environmental
destruction. Therefore, KIOXIA Iwate is actively reducing PFCs emissions.
The main measure to reduce emissions is the installation of PFCs abatement equipment.
Emissions are greatly reduced by combustion decomposition of PFCs in the equipment.
KIOXIA Iwate has installed them in all targeted manufacturing facilities that uses PFCs. At
the same time, we are curbing the use of PFCs by optimizing their use in the manufacturing
process.

Emission Amount
100%

Removal impact
85%

Emission Amount15%

No removal

With removal

FY2022 Effect of PFCs Abatement removal system*PFC: Abbreviation for Perfluorocarbon

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Reducing Waste
Semiconductor manufacturing generates a large amount of waste, including waste liquidfrom the manufacturing process and sludge from wastewater treatment. In order to reduce
waste generation, KIOXIA Iwate has been working to reduce chemical and gas usage andimprove wastewater treatment processes since production began in 2019. We also
promote the expansion of the recycling rate by thoroughly separating waste and examining
methods of recycling.

Waste Amount and Recycling RateKIOXIA Iwate Environmental Report 2023
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■ Case study of reducing waste - Reusing waste liquid In semiconductor manufacturing, the process of forming circuits on wafers (lithography
process) involves the use of solvents, which generate a large amount of waste liquid. KIOXIA
Iwate reduces the amount of waste generation by distilling and refining waste liquids for reuseinstead of disposing of them.
Tank for reuse purposes

Lithography process equipment

Distillation and refining
processes
Outsourcing

Receivingtank

Product tankDistillation tower

Non - volatile matter

Reusing Waste Liquid■ Recycling case study
KIOXIA Iwate recycles sludge and waste liquids that would otherwise be disposed of as
waste into raw materials for cement or recycled chemicals.

Recycling Case StudyKIOXIA Iwate Environmental Report 2023
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Reducing Chemical Substance Emissions
KIOXIA Iwate assesses chemical substances used in the manufacturing process, whether
or not they are regulated by law, and the risk of leakage, etc., and works to reduce
chemical substance emissions and substitute for these substances.
One example of our efforts is the elimination of volatile organic compounds (VOC*). Since
VOCs cause photochemical smog, their emissions are curbed by combustion
decomposition with removal system. It also eliminates odors characteristic of VOCs.

Emission
Amount100%

Removalimpact94%

Emission Amount 6%

No removal

With removal

FY2022 Removal Impact of VOC removal system

VOC removal system*VOC: Acronym for Volatile Organic Compounds

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Substance Management in Product Manufacturing
Preliminary Assessment of Chemical Substances
The KIOXIA Group conducts preliminary assessments of chemical substances under thefundamental thinking of “do our utmost not to use chemical substances,” “strive to findreplacement chemical substances that have minimal burden on the environment,” and “ifusing chemical substances, manage their use appropriately.”
Preliminary assessment of chemical substances is to check whether there are any regulated
substances contained in the chemical substances and how to dispose of them after use. This
ensures that the chemical substances are properly managed.
At the same time, we track and manage the status of chemical substances use even after
the substances have been used.

Flowchart of Preliminary Assessment of Chemical Substances
Management of Chemical Substances Included in Products
Regulations on product-related chemical substances are being tightened year by year incountries around the world. Behind the tightening of regulations is the problem of humanhealth effects and environmental pollution caused by chemical substances. Major regulations
include the POPs Convention, the EU REACH Regulation, and the EU RoHS Directive.
To address these environmental issues and regulations, the KIOXIA Group has selected“Procurement-Prohibited Substances,” which must not be contained in products, and“Procurement-Controlled Substances,” which are substances whose inclusion must be
controlled. Through such management of chemical substances included in products, we aim
to reduce the use of hazardous substances as much as possible, thereby reducing ourenvironmental impact.

Classification of Chemical Substances Included in Products

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Green Procurement
Based on the KIOXIA Group Environmental Policy, we have established the KIOXIAGroup’s Green Procurement Guidelines, which reflect the laws and regulations of eachcountry as well as customer requirements in order to achieve a sustainable society.
These guidelines include our approach to reducing the environmental impact of resource
procurement and our requests for management of hazardous chemical substances. We
share these guidelines with our suppliers. Green procurement refers to actively promoting
environmental conservation at our suppliers by procuring products, parts, materials, etc.
with a smaller burden on the environment.
In order to promote our business endeavors, it is important to reduce Environmental
Impacts and risks caused by hazardous chemical substances throughout the supply chain.
The cooperation of our suppliers, which are key business partners, is essential. By
promoting green procurement efforts, the KIOXIA Group strives to manage chemical
substances appropriately to contribute to realizing a better global environment.

Cover of the KIOXIA Group’s Green Procurement Guidelines

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Countermeasures against Environmental Risks
Compliance with Environmental Laws and Regulations
In order to ensure compliance with environmental laws and regulations, KIOXIA Iwate
clarifies the laws, regulations, and other requirements applicable to our company and checks
for the applicability of laws and regulations in the procurement of manufacturing and power
facilities.
■ Centralized management of laws and regulations
To ensure complete compliance with environmental laws and regulations that are updated
every now and then, we regularly check the details of the revisions. The details of revisions
that apply to KIOXIA Iwate are reflected and centrally managed in the “List of Laws andRegulations Registration and Assessment of Compliance.”■ Compliance assessment
Every year we assess the status of our compliance with environmental laws and regulations
that apply to KIOXIA Iwate. There were no problems with all legal requirements in FY2022.
■ Checking compliance with laws when investing in and installing equipment
When making capital investments and procuring materials, we determine whether
environmental laws and regulations such as the Water Pollution Prevention Act andprefectural ordinances are applicable or not, and for facilities to which they apply, we takeaction such as submitting notifications as necessary.
Environmental Measurements
KIOXIA Iwate has signed an environmental conservation agreement with Kitakami City toprotect the environment of the surrounding area. Under the environmental conservationagreement, we have established voluntary control standards that are stricter than legal
requirements, and we measure and monitor exhaust, groundwater, etc.
■ Measurement items
1. Items of environmental conservation agreement with Kitakami City
We measure groundwater (fluorine) and exhaust (nitrogen oxides, etc.) for preventing soil
and air pollution.
2. Other items
We regularly take samples and monitor wastewater, odious substances, noise, vibrations,etc. Although wastewater is discharged into sewers, we have established voluntary standards
that are stricter than the legal standards in order to minimize the impact on rivers after
sewage treatment.

Groundwater measurements

Noise measurements

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■ Analysis center
KIOXIA Iwate has set up an internal analysis center and established a system in which we
can carry out analysis work swiftly from the samples we take.

KIOXIA Iwate Analysis Center

COD Analysis

Environmental FacilitiesKIOXIA Iwate’s environmental facilities are installed in accordance with the KIOXIAGroup’s own structural guidelines. Target environmental facilities include wastewater andexhaust treatment facilities. For our structural guidelines, we established standards forpreventing pollution and reducing risks stemming from chemical substances.

System for Cleaning Exhaust Gas

Dike (Waste Water Relay Tank)

Double Pipeline for Joint

Pit to Prevent Leakage

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Accident and Emergency Response Training
KIOXIA Iwate regards accidents and natural disasters caused by the chemicals as
environmental risks, and conducts “Accident and Emergency Response Training” to ensurethat we are prepared to deal with them.
Accident and Emergency Response Training is conducted together with partnercompanies to exchange ideas on actual work scenarios, communication systems, andother issues. This training has stimulated communication regarding environmental
accidents throughout the company, and has also played a role in accident prevention.

Scenario-Based Training Assuming the Leaking of Chemicals

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Environmental Communication
Environmental Communication Efforts with Local Community■ Project to protect cherry blossom trees
In Kitakami City, we are engaged in a project to protect cherry blossom trees to ensure thefantastic cherry blossoms of Tenshochi, a popular viewing spot, are around for the next 100
years.
KIOXIA Iwate has participated in the Cherry Blossom Protection Workshop of this projectsince 2021, helping to prune and fertilize young cherry trees in Tenshochi Park.

Participation in Cherry Blossom Protection Workshop■ Contact lens case collecting activity
Since FY2023, KIOXIA Iwate has been supporting the “Eye City Eco Project,” a recycling
activity conducted by HOYA Corporation, which operates “Eye City” contact lens specialty
stores, as part of its SDGs activities.
This activity involves collecting empty cases of used contact lenses, which are recycled as
polypropylene and a portion of the proceeds from the sale is donated to the Eye Bank
Association.

Contact Lens Case Collection Boxes Installed at KIOXIA Iwate

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Efforts to Increase Understanding and Widespread Adoption In-House■ Monthly eventsKIOXIA Iwate conducts month-long events to raise environmental awareness among
employees； June: Environment Month, October: 3R Promotion Month, and February:
Energy Conservation Month. Activities include cleaning up the area around the plant, toursof environment-related facilities, and other activities.

Cleaning around the Plant

Tour (Kitakami Sewage Treatment Center)

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Various Data
Environmental Measurement DataKIOXIA Iwate takes environmental measurements based on the environmental
conservation agreement with Kitakami City.
1. Results of boiler and exhaust gas measurements

2. Results of groundwater measurements*Regulation Value: Value specified in the environmental conservation agreement with
Kitakami City. See p.16 “Environmental Measurements”.
*Measured Value: The measured value is the mean value from fiscal 2022.

PRTR (Ascertain the Emission and Transfer Amounts of Chemical Substances)
PRTR* is a system to ascertain, aggregate, and publish what chemical substances were
emitted into the environment (air, public water supplies, soil, etc.) from where and in whatvolume, and whether they were transferred (transfer amount) as waste, etc.
Based on the “Act on the Assessment of Releases of Specified Chemical Substances inthe Environment and the Promotion of Management Improvement” (PRTR Act), it isobligatory to report the amount released or transferred into the environment (air, water, soil)
if the annual handling amount of class I designated chemical substances is 1 t or more (0.5t or more in the case of a specified class I chemical substance). This information isdisclosed by the Ministry of Economy, Trade and Industry and the Ministry of theEnvironment.
PRTR* Pollutant Release and Transfer Register

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PRTR data* for 2022 (unit: tons/year)*Discharge/Transfer Amount: Two significant digits*Discharge to soil at the site: Discharges other than landfill disposal at the site
*Transfer off of the relevant site: Amount transported off of the site other than to thesewersMaterial Balance
1. Input amount

2. Emission amount*Waste: Amount of waste generated, including recycled and valuable materials*Discharged water: Discharged into sewage

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Contact informationKIOXIA Iwate Corporation
Facilities Engineering & Operations Department

Environmental Protection Group

6-6, Kitakogyodanchi, Kitakami City, Iwate 024-8555
Phone: 0197-68-8221 (direct line to Facilities Engineering & Operations Department)

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