Sustainable Use of Natural CapitalProtecting the Atmospheric Environment
Examples of Initiatives
By strengthening our measures for fixed emission sources, we are working on reducing our various environmental impacts,
including emissions of soot and dust mainly from boilers and gas turbines, leaks of fluorocarbons from refrigeration equipment,
emissions of mercury from industrial waste incinerators, emissions of chemicals and VOCs from manufacturing plants, andairborne asbestos from the demolition of buildings. In addition, we focus on realizing the following goals as an appropriateresponse to laws and regulations.
• Regarding refrigeration units using CFCs and HCFCs, we are systematically upgrading to equipment that uses low GWP
HFCs or non-fluorocarbon refrigerants (Ozone Layer Protection Law). We are also steadily disposing of the fluorocarbons
from refrigeration and air conditioning equipment to be thrown away. (Act for Rationalized Use and Proper Managementof Fluorocarbons)• We will remove all electronic equipment that uses PCBs (in storage or in operation) ahead of the deadline of March 2025.
(Act on Special Measures against PCB Waste)

Reining in PM2.5* Emissions
We conduct detailed surveys of boilers, gas turbines, heating furnaces, dry furnaces, cracking furnaces, waste incinerators, andother such equipment, testing for emissions of VOCs and other gaseous atmospheric pollutants, soot, SOx, NOx, and hydrogenchloride, which are also the source of secondary particles and PM2.5. We strive to further reduce emissions for each source bytaking measures to switch to alternative fuels.
* Particulate matter of up to 2.5 μm in diameter

Environmental Activities: Supplementary Data

Responding to Fluorocarbon Emission Controls
1 I nitiatives to reduce leakage
We conduct twice annual fluorocarbon leakage surveys at all worksites to assess leakage amounts,identify equipment with significant leakage discovered during the assessment, and clarify thesources of leaks, then take measures to prevent recurrences. Specifically, in addition to the simple and regular inspections defined in the Act for Rationalized Use and Proper Management ofFluorocarbons, which we carry out as directed as a matter of course, we carry out more frequent
inspections in order to quickly discover and minimize leakage.
2 M anagement for disposal
When disposing of equipment, to ensure fluorocarbon refrigeration equipment is properly
treated, we diligently utilize disposal check sheets for Class I designated products so that there
are no gaps in their management linked to fixed asset ledgers or in procedures for recovering
fluorocarbons.

HFO (R1233zd) refrigerationequipment

3 S ystematic upgrades and use of green coolants
Regarding CFC and HCFC refrigeration equipment employed in production processes, we have set a target deadline for upgrading the equipment and conduct progress surveys once a year.
In addition, we are promoting a switch to green coolants at all Group companies in Japan, and Group companies in Japan andall worksites are promoting a switch to HFO refrigeration equipment.
● Upgrade Deadlines for Each Type of Equipment• CFC equipment: Eliminate use of these units by fiscal 2025 (currently a total of 20 units held by the Group in Japan)• HCFC equipment: Eliminate use of these units by fiscal 2045 (currently a total of 277 units held by the Group in Japan)

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Sustainable Use of Natural Capital■ Calculated Leakage for FluorocarbonsCalculated leakage (tons-CO2)

FY2016FY2017FY2018FY2019FY2020

FY2021

FY2022

9,135

4,782

7,675

9,354

4,362

5,100

5,844

Emissions of Mercury into the Atmosphere from Waste Incinerators
We measured concentrations of mercury (both gas and particles) emitted into the atmosphere by our waste incinerators, which
we own, and completed a study of the impact of these emissions. The results have confirmed that mercury is being effectively
removed by emission gas removal equipment, including bag filters and scrapers installed at incinerators, and that the concentration of mercury released into the atmosphere from all of the incinerators we own is within the emission guideline value set underthe Air Pollution Control Act.

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