Commitment ofTop Management

Sustainability Strategy

FeatureEnvironment

SocialPrevention of Pollution
Progress in FY2022
 Eliminated the use of kerosene by electrifying airconditioners (Mizushima Plant) Obtained information on GADSL*1 regulated substances, upgraded our management system, andswitched parts and made design changes in accordance with the ELV*2 directive in order to properly
manage hazardous substances in products.
*1 Global Automotive Declarable Substance List, a list to
facilitate the exchange of information on environmentallyhazardous substances, created by consensus of a group ofautomotive manufacturers in various countries*2 End-of-life vehicles

Targetl 3.9

Basic Approach
Vehicles are products that can affect human healthand biodiversity through the emission of environmental pollutants and chemical substances during business activities or product use.
MITSUBISHI MOTORS aims to contribute to therealization of a pollution-free society and has positioned it as one of the key challenges in its Environmental Plan Package. We are working to reduce theenvironmental impact of our products and the pollution resulting from our business activities.

<Related pages>
P15 MITSUBISHI MOTORS’ Materiality
P20 Materiality
P33 Environmental Management
P118 Environmental Data Related to Products andBusiness Activities
WEB Atmosphere/Wastewater Quality/PRTR-designatedPollutants Data (FY2022 Results)
https://www.mitsubishi-motors.com/en/sustainability/esg/
factory_archive2023.html

ESG Data

GovernanceIn the stage of product development, along withreducing noxious components of exhaust gases andpromoting the development of fuel economy improving technologies and electrification technologies, westrive to manage hazardous substances. In production
processes, we are endeavoring to reduce air pollutants emitted from out plants by voluntarily enacting
activity standards that are stricter than legal requirements. In order to reduce the impact on the environment from air pollutants and chemical substances,
we engage in the prevention of pollution throughout
all our business activities.

Targetl 6.3

Targetsl 12.4l 12.5

Improving Gasoline Engine Vehicles
In the 1960s, emissions of carbon monoxide (CO),hydrocarbons (HC) and nitrogen oxides (NOx) wererestricted by regulations, and those restrictions have
gradually been tightened since.
We have taken various measures since such regulations were first introduced. Currently, our products
are compliant with stricted emission regulations,
thanks to the advanced technologies such as electronically controlled fuel injectors for combustion
control, gasoline particulate filter (GPF) systems, andimproved catalyst technologies.

Improving Diesel Engine Vehicles
For diesel engine vehicles, emissions of CO, HC, NOx,and particulate matter have been regulated in somecountries and regions, such as Japan, United Statesand European countries, since the 1970s.
Since such regulations were first introduced, we
have taken measures including improving the combustion technology. To comply with these regulations,
we have developed and produced clean diesel engines
by systemizing combustion control technologies suchas variable geometry turbocharger and high pressure
fuel injection system, as well as after-treatment technologies such as NOx trap catalyst, diesel particulate

Purifying Exhaust Gas while Driving

filter, and urea selective catalytic reduction system.

In addition to developing and popularizing electrified
vehicles, which emit little exhaust while driving, weare endeavoring to develop and improve gasoline anddiesel vehicles that emit fewer hazardous substances.
MITSUBISHI MOTORS CORPORATION Sustainability Report 2023

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Commitment ofTop Management

Sustainability StrategyFeature

Environment

SocialESG Data

GovernanceTargetl 3.9

Clean Diesel Engine Systems

Diesel Particulate Filter (DPF)

VG* Turbocharger

A DPF, a filter that removes particulate matter by col-Continuously controlling the variable nozzle oflecting and burning it, substantially reduces emissions

the turbine optimally boosts power to the engineof particulate matter.

1Targetl 6.3

Targetsl 12.4l 12.5throughout its full operating range, improving fuelefficiency and reducing PM emissions.
*1 Variable geometry

Urea Selective Catalyst Reduction (SCR) System
Nitrous oxides (NOx) from diesel engines’ emissions
are reduced and purified using an aqueous urea soluCommon Rail Fuel Injection Systemtion (AdBlue®*2), breaking them down into non-pollut-

Particulate matter and NOx can be generated due toing nitrogen and water.

incomplete combustion. In our vehicles, this is sup-*2 Registered trademark of the Verband der Automobilindustrie (VDA)pressed using a high-pressure fuel pump, common
rail accumulator that stores highly pressurized fuel,and electronically controlled fuel injectors.

[CleanDiesel Engine(4N14 Engine)][The 4N14EngineSystem
System]Intercooler

Turbocharger

IntakeUrea SCR catalyst
Injection of AdBlue®
NOx
reduction

EngineExhaustgas

NH3 reduces NOx
into H2O and N2.

Urea SCR system
Fuel pump
MITSUBISHI MOTORS CORPORATION Sustainability Report 2023

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Commitment ofTop Management

Sustainability Strategy

FeatureEnvironment

SocialESG Data

GovernanceTargetl 3.9

Reduction of Hazardous Substances
In accordance with the reduction targets of the Japan
Automobile Manufacturers Association, Inc. (JAMA)
and the EU’s end-of-life vehicles directive (a recyclinglaw), MITSUBISHI MOTORS is working to reduce theuse of four substances (lead, mercury, cadmium, andhexavalent chromium). We are also taking measures
to comply with regulations on the use of hazardous
substances in each country in compliance with theREACH regulation*1 concerning substances and theConvention on POPs* .
2At present, in addition to four substances andother heavy metals, the use of VOCs*3, bromine-based
flame retardants and various other substances isregulated. Regulations similar to European ones arebeing enforced in developing countries in Asia as well.
We are working to voluntarily reduce hazardous
substances by setting internal technical standards.
*1 REACH stands for “Registration, Evaluation, Authorisation andRestriction of Chemicals.” Enacted on June 1, 2007, the REACH
regulation is a general system to register, evaluate, authorizeand restrict the use of substances*2 Persistent Organic Pollutants*3 Volatile Organic Compounds
Data (p. 119): Emissions of Sulfur Oxide, Nitrogen Oxide, VOC (Volatile Organic Compounds) and Ozone-Depleting Substances

Management of Material Data by IMDSIMDS*4, an international system for collecting suchdata. Together with overseas, we utilize the collected
data under a globally centralized internal system forreducing hazardous substances.
In cooperation with suppliers, we are complying
with the REACH regulation, a general system for theregistration, evaluation, authorization, and restrictionof substances used in the EU.
In FY2022, we renovated our internal management
system to properly manage hazardous substances inproducts by incorporating information on GADSL-regulated substances. We collect IMDS data inputted by

To provide customers with a healthy and safe cabin
space, we work to reduce VOCs inside the cabin.
VOCs are organic compounds that are easily volatilized at room temperature such as formaldehyde
and toluene. These compounds are thought to cause
sick building syndrome, and may irritate the eyes,
nose, and throat. In an automobile cabin, they aremainly generated by adhesives and paint used in interior parts.
Please see the JAMA website for details regarding
the Voluntary Guidelines.
WEB https://www.jama.or.jp/english/news/past/release/2005/050214.html

suppliers and utilize the system to automatically determine the compliance status with regulations if any

Progress

newly regulated substances are found in components,

We are working to develop materials with low VOC

based on the content and materials used. We also

emissions to reduce in-cabin VOCs.

implemented component replacement and designchanges in accordance with the ELV Directive.

Example of Measures to Reduce VOCs

*4 International Material Data System

CarpetSeat

Reduced aldehydes in pile adhesives
Reduced organic solvents in fabric adhesives
Reduced VOCs by using spun-dyed highOrnaments
gloss interior parts

Flow of Data Collection through IMDSMITSUBISHI MOTORS
Hazardous
Substance
control

MITSUBISHI MOTORS CORPORATION Sustainability Report 2023

Targetsl 12.4l 12.5

Reduction of In-Cabin VOCs

Data on the hazardous substances contained in vehicle parts delivered by suppliers are collected by theTargetl 6.3

Data inputrequest

Internalsystem

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Data
download59▶ NextSuppliers
Data input

IMDS

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Commitment ofTop Management

Sustainability Strategy

FeatureEnvironment

SocialESG Data

GovernanceTargetl 3.9

Preventing Air Pollution
Reduction of VOC Emissions from Production
Processes
MITSUBISHI MOTORS is applying the waterborne 3WET
paint method*1 to the painting process to reduce
VOC emissions. In Japan, we use this method at theMizushima Plant and the Okazaki Plant. Overseas, thesystem is used on the No. 3 paint line at Mitsubishi

chemical properties and the details of usage plans, asWe follow laws and regulations to manage the con-well as legal requirements, conduct risk assessments.

centrations and amounts of such air pollutants as

Finally, we judge whether they can be introduced andnitrogen oxides (NOx), sulfur oxides (SOx) and sooteducate workers well. We also use this system toemitted in production processes.

conduct centralized management of the most recent

In addition, we are promoting the replacement ofSafety Data Sheet (SDS) information. In addition, weequipment that uses fossil fuels such as kerosene withuse data from this system to ascertain the quantity

electric devices, including electric heat pumps, to si-of PRTR*2 substances used and report on their usage

multaneously reduce air pollutants and CO2 emissions.

and emissions to Ministry of Economy, Trade and Industry, as well as other aspects of legal compliance.

thinner. Through these moves, we are reducing VOC
emissions from vehicle production.
*1 With this method, water-soluble paints are used for themiddle and top coats. Solvent-based paint is used only for theclear overcoat.
Data (p. 119): VOCs

*2 P
 RTR: Pollutant Release and Transfer Register

TOPICSWe are also upgrading our robotic and otherby adjusting production lots and collecting more used

Targetsl 12.4l 12.5

Management of Air Pollutants

Motors (Thailand) Co., Ltd. (MMTh).
painting systems, reducing the amount of paint used

Targetl 6.3

Eliminating the Use of Kerosene through Electrification (Mizushima Plant)

Appropriate Management of Hazardous Waste

At the Mizushima Plant, in FY2022 we replaced theair conditioners in the main building and PR Centerwith electric air conditioners, transitioning from kerosene-powered absorption chiller-heaters to fully electrified systems.
This move reduced kerosene use within the plant tozero, lowering atmospheric pollutants such as NOx andparticulate matter, as well as achieving an annual reduction of 50 tons of CO2 emissions due to energy-saving effects.

exporting hazardous waste that is restricted by theWe manage hazardous waste to avoid importing orBasel Convention on the Control of Transboundary
Movements of Hazardous and Their Disposal*3.
We also transport and treat waste produced in Japan appropriately, based on various legal requirements.
*3 T his convention stipulates international frameworks andprocedures related to restrictions on international transfer of acertain types of waste.

Appropriate Management of Waste ContainingPCBs
Harmful polychlorinated biphenyls (PCBs) are con-Management of Chemical Substances
New paint plant (MMTh)

Appropriate Management of Chemical Substances
We have introduced a chemical substance management system for using chemical substances. Before

tained as insulation oil in transformers and condensers that were manufactured a long time ago.
We process waste containing PCBs appropriately, inaccordance with the Act on Special Measures concerning Promotion of Proper Treatment of PCB Waste.

deploying substances, we examine their physical andMITSUBISHI MOTORS CORPORATION Sustainability Report 2023

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