Initiatives that Deal with Biodiversity

Komatsu's Relationship with
the Environment

Komatsu Earth Environment
Charter

Environmental Action Plan
and Results for FY2012

Relationship between
Business Activities and theEnvironment

Organizational Chart of theEnvironmental Management
Structure

Acquiring ISO14001
Environmental Inspection
Scope 3 Category 11

Promoting Environmental
Activities at Group Sales andRental Agencies

Komatsu's International
Initiatives through theEnvironment

Line Up of Tier4 Machinery

Halving Electricity Usage
Project

Hybrid Hydraulic Excavators
Surpass 2,000 Units in Sales

New Hydraulic Drive Forklift
FH Series

Thermoelectric Power
Generation

Developing the Latest Engine
Technology

Environmental Servicing
Programs for the Latest
Machinery

Autonomous Haulage System(AHS)

Introducing to the Market the
Miniature Servo Press"H1F110-2"

Reducing CO2 Emissions in
Manufacturing Operations

CO2 Reduction of Suppliers

Reducing CO2 Emissions in
Non-manufacturing Divisions

Introducing to the Market theFiber Laser Cutting Machine

Reducing CO2 Emissions in
Logistics

Promoting the Reman Remanufacturing Business
Effective Utilization of Resources in Manufacturing Operations(Waste)Effective Utilization of Resources in Manufacturing Operations(Water Resources)

Promoting Legal Compliance, and Pollution Mitigation andPrevention
Management of Chemical Substances and Pollution Prevention
Reducing the Use of Substances of Environmental Concern andComplying with the EU REACH Regulation

Biodiesel Fuel (BDF) Project
KOMATSU CASTEX Awarded the "Toyama Prefecture
Environmental Conference Chairman Award"

Komatsu promotes environmentally-friendly activities throughout the entire Group to realize its vision of"What Komatsu Can Do and What It Must Do" for the environment and sustainable development.

In recognition of the fact that our business activities affect the environment on a regional and global level, we,at Komatsu, have placed the focus on the following four key areas:
1)Climate Change
2)Establishment of a Sound Material-Cycle Society3)Conservation of Air, Water and Other Natural Resources as well as Management of Chemical Substances
4)Biodiversity
In line with the Komatsu Earth Environment Charter revised in 2010, the Komatsu Group embarks on global
initiatives across business areas guided by the fundamental principles of(1)Contributions to Realization of Sustainable Society,(2)Simultaneous Realization of Environmental and Economic Performance, and(3)Observance of Corporate Social Responsibility.

Relationship of the Komatsu Group's Business Activities
with the Environment

You can see expanding figure by clicking figure above.

Corporate Principles
1. Contributions to Realization of Sustainable Society
Mankind must not only promote the further growth of a rich and comfortable society but also pass down thisindispensable environment of our planet earth to future generations in a sound and healthy condition.
We, at the Komatsu Group, define environmental conservation efforts as one of the highest priority
management tasks, and endeavor to contribute to the sustainable growth of society by integrating advanced
technologies into environmental conservation efforts in all our business activities. This is represented by our
hybrid construction equipment which features a substantial reduction of CO2 emissions while in operation and by
our superior manufacturing.
2. Simultaneous Realization of Environmental and Economic Performance
We are committed to improving both environmental performance and economic efficiency, as a group ofcompanies working toward superior manufacturing for customer satisfaction. To this end, we constantly take up
the challenge of advancing technologies to develop creative products that improve both environmental
performance throughout the product's life cycle and the product's economic performance at the same time.
3. Observance of Corporate Social Responsibility
Each company of the Komatsu Group promotes environmental conservation by not only complying with theapplicable laws and regulations of the concerned host community, region and country but also by establishing its
voluntary standards which consider global and local environmental concerns. Each company of the Group also
strives to fulfill its corporate social responsibility by actively participating in local environmental conservation
programs and thereby promoting close-knit communication with local communities, while striving to become acompany trusted by all Komatsu stakeholders.

Guidelines for Corporate Activity

1. Basic Stances on Earth Environmental Problems
We, at the Komatsu Group, work for sustainable society and earth environment through our global business
operations by addressing the following four environmental problems with the stances discussed below.
1)Climate Change
We will reduce the use of energy and emissions of greenhouse gas in all phases of our businessactivities ranging from research and development, procurement, production and logistics to sales andservice as well as in the total life cycle of our products and services.
2)Establishment of a Sound Material-Cycle Society
Through our business processes, we work to minimize the use of natural resources, such as materials
and water, promote their re-use or recycle them as much as possible, and expand Zero Emissions from ourmanufacturing activities around the world. At the same time we ensure the thorough management of wastematerials in all our business domains, including our suppliers and distributors. We also continuously work
to increase the recyclabillity rate of products at the time of disposal.
3)Conservation of Air, Water and Other Environments as well as Management of Chemical
Substances
We comply with not only local laws and regulations but also with our established standards concerning
the conservation of water quality, prevention of air pollution, noise and vibrations.
As much as possible, we also ensure the thorough management of chemical substances for use in ourbusiness activities, while continuously reducing the use of potentially harmful chemical substances orreplacing them with alternative substances for discontinuation of their use.
4)Biodiversity
We recognize biodiversity as one of the important issues concerning the earth environment, evaluate,
understand and analyze impact on it in all our business domains, and work on our tasks according to thecriteria of the highest impact and/or the most effective actions.

2. Framework of Global, Group-wide Environmental Management System
The Komatsu Head Office, as well as the manufacturing facilities and main companies of the Komatsu Group,
already with ISO certifications, will work to maintain and improve their environmental management system, whileother manufacturing facilities and suppliers will also work to establish their environmental management systems
and reduce their environmental impact.
The Komatsu Environmental Committee develops environmental action plans and common guidelines for the
Komatsu Group. Based on these Group-wide plans and guidelines, each division or company sets up its own
mid- to long-term targets, develops and implements specific action plans, reviews them regularly and works tocontinuously improve them.
3. Environmental Education and Communication
We believe that it is important to enhance the environmental awareness of each and every employee andthereby actively promote environmental awareness and education programs for all employees.
We will gather environment-related information concerning not only our manufacturing facilities but also otherrelated entities, such as major affiliated companies and suppliers, and strive to disclose such information, therebyfacilitating proactive communication with all our stakeholders, such as customers, employees, local
communities and suppliers and further expanding the content of environmental communication.

The Komatsu Group procures various parts and materials and, through the manufacturing process,utilizes the earth's resources, including raw materials, water, energy, and chemical substances, among
others, to provide products to customers. Such business activities have the potential to impact theenvironment at each stage in the process.
The Komatsu Group will continue to provide high value-added products and services while assessing theenvironmental impacts resulting from its business activities, formulating medium- and long-term objectives,and introducing measures to reduce such impacts.

Environmental Impact Resulting from Business Activities ofKomatsu Group Companies, including Facilities outside Japan (FY2012)

You can see expanding figure by clicking figure above.

CO2 emissions: Calculated by multiplying the electric power, heavy oil, etc. consumed (see Energy section of Input column) by the CO2
emission coefficient (according to the Greenhouse Gas Emissions Calculation - Reporting Manual of the Ministry of the Environment
based on the Act on Promotion of Global Warming Countermeasures)
SOx emissions: Calculated by multiplying the "S content by percentage" (based on element tables of suppliers) by the amounts of heavy
oil, kerosene, light oil, and coke used.
NOx emissions: Calculated by multiplying the "nitrogen oxide emissions units" (obtained at each Komatsu facility) by the amounts ofheavy oil, kerosene, light oil, natural gas, and LPG used.
Emissions and transfer of substances covered by the PRTR Law: Calculated by the "content ratio of specific chemical substances"
contained in indirect materials multiplied by the "discharge or transfer rate." This calculation is based on the PRTR Law, which was
designed to mandate the disclosure of the amount of specific chemical substances released into the environment to promote themanagement of such substances.

Scope of energy and CO2 data of logistics● Komatsu (parent company) facilities, specifically the following fourteen plants
The Awazu Plant, the Osaka Plant, the Rokko Plant, the Ibaraki Plant, the Tochigi Plant, the Kanazawa
Plant, the Shonan Plant, the Oyama Plant, the Koriyama Plant, and Komatsu Logistics Corp (Parts
Logistics Division)(The Kanto Parts Distribution Center, the Kansai Parts Distribution Center, the Awazu
Parts Distribution Center, the Hokkaido Parts Distribution Center, the Kyusyu Parts Distribution Center).
● Komatsu Group manufacturing facilities in Japan, specifically the above fourteen plants and thefollowing one business unit
Komatsu Castex Ltd.
● Komatsu Group manufacturing facilities outside Japan, specifically the following ten plants
Komatsu America Corp.,[Chattanooga Manufacturing Operation], [Peoria Manufacturing Operation],
Komatsu do Brasil Ltda., Komatsu UK Ltd., Komatsu Mining Germany GmbH,
Komatsu Shantui Construction Machinery Co., Ltd., Komatsu (Changzhou) Construction Machinery
Corporation, Komatsu (Changzhou) Foundry Corp., Komatsu (Shandong) Construction Machinery Corp,
PT Komatsu Indonesia Tbk, Bangkok Komatsu Co., Ltd..

Environmental Impact Indicators by Region

Komatsu has implemented a Group-wide initiative to acquire ISO14001
certification, an international standard for environmental management
systems. The objective is to enhance management quality bystrengthening systematic steps towards environmental conservation.
Since 1997, several manufacturing facilities both inside Japan andabroad received certification. In FY2005, the four plants belonging to
Komatsu Ltd. (the parent company), the Awazu, Osaka, Mooka, andOyama Plants, acquired integrated certification. As the second step, in
FY2007 Komatsu added its major affiliates in Japan and yet-to-becertified non-manufacturing facilities – notably the Head Office – to theabove four plants, with integrated certification attained by the Group in
Japan in May 2008.
Upon completing the March 2012 recertification, the KOMATSU Way
Global Institute and Komatsu NTC Ltd. were included in the integrated
certification. The Group seeks to raise the level of management in Japan.
Komatsu aims for 100% of overseas production facilities to acquirecertification by FY2015.

ISO14001 Integrated Certification

Environmental Inspection of East Europe Branches
Based on Komatsu’s "Earth Environment Basic Policy", environmental protection guidelines are established forthe purpose of improving the level of environmental protection and reducing environmental risks in developing
countries.
International subsidiaries in China (2007), Thailand (2009), Indonesia (2009), India (2010), Brazil (2011),
Russia (KMR, 2012), and the Czech Republic (Stavmek s.r.o., 2012) were visited. Environmental facilities were
inspected and opinions exchanged on environmental protection. In addition, the sites of contracted industrial
waste disposers were inspected.
Both companies (KMR and Stavmek) complied with local laws and carried out periodic atmospheric and water
quality monitoring as well as separation of industrial waste. Stavmek was active in energy conservation measures
such as switching to higher efficiency lighting to LEDs, renewal of transformers and boilers, and utilization ofcompressor exhaust heat.
We will continue to inspect international subsidiaries to improve the environmental efforts of Komatsu group.

Environmental Inspections at KMREnvironmental Inspections of the Chinese Subsidiary
From FY2010, audits of the compliance risk of international subsidiaries were carried out. In FY2012, a follow
up audit to the previous year was carried out in China (KCCM and KSD). Although there were some tasksremaining from the areas designated for improvement by the last audit, these matters were resolved in the
improvement plan submitted and confirmed at a later date.
Also at KCCM, full participation environmental activities were implemented such as environmental speeches byplant managers at morning meetings and beautification days.
We will continue to follow up with audits and also carry out environmental audits at other regional subsidiaries.

KSD Follow Up Inspection

From actual data gathered by one of our group companies, KOMTRAX, Komatsu has gained perspective on
the amount of CO2 emissions (Scope 3 Category 11) produced by our products in operation world-wide.
The calculation was performed as follows.

Calculation of Emissions from Customer Use(1) Calculate the following by each model
CO2 emissions over the life of each model= (2012 Production Volume) × (Fuel Consumption; L/kWh) × (Engine Output; kW)× (Engine Life; as product life; h) × (CO2 Conversion Factor)(2) Calculated for each model in (1) above, Total these values*For models available to collect fuel consumption, KOMTRAX collected the actual values of fuel consumption
and operating time from representative models of each size. We back calculated data from development forother models.

For others, including the 14 remaining categories, the general CO2 emissions was calculated. The result isshown in the pie chart below.

*1 :LCA is the environmental impact assessment method forindividual products at each stage, from manufacture,transportation, sale, use, disposal, to reuse*2 :Scope1 is direct CO2 emissions by operator(ex: private power
generation)*3 :Scope2 is indirect CO2 emissions by operator(ex: powerpurchase)*4 :Scope3 is CO2 emissions by operator from supply chain (ex:emissions of product during operation, emissions from suppliers,transportation, business trips and commuting)- Although it is calculating in the total range of domestic and an overseas in calculation of each category, the category (4) and (5)is calculating only domestic data. Moreover, presumption of a category (3) goes into overseas data in part.

As evident from the results above, emissions during product use makes up more than 90% of total emissions.
This is almost the same result as the estimates for 2007.
(See page 13 of Environmental and Social Report 2008)
From this, we can see that fuel-efficient products have a significant effect on reducing CO2 emissions.
Komatsu is committed to developing hybrid construction machinery (improving fuel efficiency by 25%) and
DANTOTSU products (over 10% improvement in fuel efficiency).
In addition, the result of the understanding in the LCA * 1 (Life Cycle Assessment) is the pie chart below.

«Reference»
Pie Chart of Scope1, 2, 3

WBCSD Activities
Komatsu supports and participates in the activities of the WBCSD (World Business Council for Sustainable
Development). The WBCSD was established in 1995 with CEO level participants from over 200 companies
worldwide (as of March 2012) with headquarters in Geneva, Switzerland. The guiding principle of WBCSD
activities is to evaluate what businesses can do to realize a society with low environmental impact developing
ideas to achieve sustainability, and evaluating and implementing solutions from the business world.
In fiscal year 2012, Komatsu participated in the Liaison Delegates Meeting held in the spring in Montreux,
Switzerland and the Council Meeting held in the autumn in Seoul, South Korea.
Komatsu is participating in environmental entrepreneurship on a global scale and thinking even further ahead
as a Japanese construction machinery manufacturer to evaluate what we can do to realize a sustainable society.

WBCSD Ecosystem
Komatsu participates in WBCSD activities. WBCSD is the voice of global businesses with the power todisseminate information to people of the world; Komatsu's activities for biodiversity conservation at the Oita
testing site were introduced in a WBCSD report.
«References»(WBCSD Report pages 24-25)
Biodiversity and ecosystem services scaling up business solutions(WBCSD Report page 24)
Picking up the Pace - Accelerating public policies for positive outcomesRio+20
Komatsu contributed to the Japan pavilion set up by
the Japanese government to accompany United
Nations' environmental conference Rio+20 (United
Nations Conference on Sustainable Development) heldin Rio de Janeiro, Brazil. This conference was held tocommemorate 20 years since the Earth Summit, which
was also held in Rio de Janeiro in 1992. Heads of state,ministers and people from the general public visited theJapan pavilion where Komatsu's "CSR & Environmental

Rio+20 held in Rio de Janeiro

Report 2011" was distributed. It was a good opportunity
for Komatsu to publicize its environmental initiatives to the world.

COP18
Komatsu participated in UNFCCC's (United Nations Framework Convention on Climate Change) 18th sessionof the Conference of the Parties. At the conference which took place in Doha, Qatar, Komatsu participated as amember of Japanese industry. Komatsu will continue to confront climate change issues and have initiative.

Komatsu’s support for environmental activities extends to forklift sales agencies, as well as construction machineryand rental companies, through education and guidance on ways to enhance environmental management.
The Environmental Guidelines for Sales Agencies comprise guidelines and standards pertaining to environmental
issues that are of direct relevance to operations at sales agencies and rental companies. These include waste
treatment, waste-oil treatment, oil-and-grease management, and treatment of wastewater from vehicle washing.
Komatsu assists sales agencies and rental companies in meeting the provisions of the Environmental Guidelines.
The company also assists in reviewing the environmental aspects of operations, conditions, and equipment at therelevant business sites of the agencies and companies, gives on-site guidance, and proposes remedial actions that are
tailored to each site. This is done through joint visits to the sites by persons in charge of environmental management at
Komatsu and at the sales agencies and rental companies.
(In FY2012, 106 sites received this assistance.)
As a result, awareness of the environment has risen at agencies and companies, and various improvements areunderway.

In addition, Komatsu Construction Equipment Sales and Service Japan Ltd. plans to implement a waste management
system for law-abiding management of waste and is promoting the efficient management of waste in conjunction withintroducing an electronic manifesto. To this effect, group sales and rental companies sustain a heightened awarenessconcerning the environment and continue to undertake improvement activities.

New emission control regulations for construction machinery in Japan, the United States and Europe arestringent, requiring the reduction of NOx and PM emissions to 1/10 of previous levels. In order to afford
regulated entities sufficient time to develop new technology to comply with the more stringent standards, theregulatory agencies in Japan, the United States and Europe coordinated to implement changes in twostages.
The first stage of regulations went into effect in 2011. To comply with these regulations, Komatsu
developed and produced the Komatsu Diesel Particulate Filter (KDPF), which is an emission aftertreatment
device designed to reduce PM emissions to 1/10 of pre-2011 levels. The second stage of regulations will
begin in 2014 and require reductions in NOx to 1/10 of pre-2011 levels.
Typically lowering combustion temperature to reduce NOx emissions leads to increased PM emissions
and fuel consumption. Construction machinery engines, NOx and PM must be reduced simultaneously andalso reduce fuel consumption. Also, construction machinery engines that are used in harsh environments
need to perform at maximum output/torque with high reliability and durability.
To respond to these needs, Komatsu developed and produced a urea NOx reduction aftertreatment
device designed primarily for construction machinery. The device uses a unique catalyst with structure,functions and controls tailored to the unique characteristics of construction machinery. Komatsu will
gradually introduce into the market products that are compliant with the 2014 regulations.
Also, to comply with the 2014 regulations, we leveraged our in-house development and production
expertise for engines, hydraulic machines, control systems and the main unit to design the engine and bodyas a total package in order to produce engines that can be maximally effective under a variety of conditions.
Komatsu's unique expertise in engine technology combined with the latest technology make it possible toreduce environmental burdens while being economical.
- Including some joint products with Cummins Inc.

New engine compliant with the next phase of emission
controls in Japan, the United States and Europe

Exhaust postprocessing system

Releasing brand new model installed with new generation engine
Komatsu continues equipping hydraulic excavators, bulldozers, articulated dump trucks, and wheel loaders withnext generation engines that greatly reduce NOx (nitrogen oxide) and PM (particulate matter) emissions thatmeet the emissions controls of Japan (Emissions from Non-Road Special Motor Vehicles 2011 Standards), North
America (EPA Tier4 Interim), and Europe (EU Stage 3B). Also, by optimizing engine controls in response tooperational conditions, productivity has improved and fuel consumption has been reduced by up to 14%
compared to previous models (*1).

Hydraulic Excavator PC210LC-10

Bulldozer D155AX-7

Articulated Dump Truck HM300-3

Wheel Loader WA500-7

1* Compared to previous company models (company benchmarks). In actual usage work conditions may vary.

«Line up»
■Hydraulic excavator
Japan PC200-10 / PC220LC-10 / PC350-10 / PC450-10
North America PC138US-10 / PC210LC-10 / PC240LC-10 / PC290LC-10 / PC360LC-10 / PC490LC-10
EU PW180-10■Bulldozer
D37EX-23 / D37PX-23 / D39EX-23 / D39PX-23 / D61EX-23 / D61PX-23 / D65EX-17 / D65WX-17 / D65PX-17 /D155AX-7■Articulated dump truck
HM300-3 / HM400-3■Wheel loader
WA270-7 / WA320-7 / WA380-7 / WA470-7 / WA500-7

Supporting Safety and Reliability
A 7-inch high resolution LCD display is used for the driver's seat to support energy efficient operation andcheck behind the vehicle with a color rearview display for safe, precise, and smooth operations.
Offering KOMATSU CARE (*2) automatically applied to all new vehicle purchases contributes to lowering total
lifecycle costs and longer operations.
Komatsu implements support to maintain high quality and reliability for long-term usage and contributesustaining the "trust” of our customers

2* KOMATSU CARE
A new vehicle warranty program consisting of free and paid programs.

High Resolution 7 Inch Display

Color rear view monitor for the security backside of thevehicle«Reference site»
Environmental Servicing Programs for the Latest Machinery(KOMATSU CARE）

In 2008 Komatsu released the PC200-8E0, the world's first mass produced hybrid hydraulic excavator. Since
2008, Komatsu's domestic sales of the PC200-8E0 have surpassed 2,000 units.
In 2010 Komatsu released the follow up model HB205-1, and at the end of 2012, a minor upgrade, the HB2051M0, was made to improve fuel efficiency. Following the PC200 class, this year of 2012 the PC300 class will be sold.
We will continue to develop and promote environmental-friendly construction machinery.

Hybrid Hydraulic Excavator HB205-1

Marketing Record for Hybrid
Hydraulic Excavator

The Autonomous Haulage System (AHS) consists of unmanned dump trucks, manned non-truck vehicles,
and an operation management system that manages the entire mining operation, allowing for fleet
operations with fewer personnel.
It not only frees workers from harsh labor conditions, but also makes it possible to reduce costs.
Additionally, the AHS improves safety by greatly reducing the number of accidents due to human error.
In addition, the system's optimized automatic controls reduce sudden acceleration, revving, and abrupt
steering resulting in greater fuel efficiency (L/H) and tire life compared to manned operations in general.

Unmanned dump trucks managed and operated by AHS

The new forklift models FH40-1, FH45-1, and FH50-1 announced in July 2012 are more environmental-friendly
and easy to operate. Komatsu has received 200 orders for these models as of March 2013. The electronicallycontrolled Hydro-Static Transmission (HST, hydraulics powered transmission) technology, developed by Komatsu
achieves unprecedented fuel efficiency by reducing fuel consumption by up to 30% compared to our previous
models. The new forklift models are equipped for the first time with KOMTRAX, a remote equipment and fleet
monitoring system, to support our customers fleet management operations. Trial units are currently being tested
abroad in the United States, CIS, and Indonesia, with great feedback on their low fuel consumption.
In February 2013, Komatsu was awarded the Japan Machinery Federation Chairman Award given in recognition
for the development or application of industrial machinery with significant energy conservation effects.

Hydraulic drive forklift FH50

Japan Machinery Federation Chairman Award
plaque

The Biodiesel Fuel (BDF) Project produces BDF from raw materials such as jatropha and other non-edible
plants that can grow on oligotrophic ground at the Adaro Mine on Kalimantan Island in Indonesia. The
project is intended to reduce greenhouse gas emissions by fueling Komatsu dump trucks, with a 90 ton load
capacity, with BDF instead of light oil. Because BDF is carbon neutral, use of fuel that is comprised of 20%
BDF and 80% light oil (B20) can reduce CO2 emissions by up to 20%.
Komatsu strives to ensure BDF quality (European Standard EN 14214) through lab analysis and quality
assurance, which includes 6,000 hours of real-world car testing with B20.
In addition, Komatsu received a commission to carry out a feasibility study for the establishment ofbilateral offset policies ("Study for Policy Proposals and the Establishment of MRV Methodology Regarding
Technology Development and Promoting Adoption Biodiesel Fuel (BDF) in Indonesia") as part of the Ministryof Economy, Trade and Industry's "2012 Global Warming Mitigation Technology Promotion Project." Thefeasibility study concluded that after offsetting the CO2 emissions from the BDF refining, CO2 emissions
would be reduced by at least 10,000 tons annually (at a scale of 100 dump trucks).
This project has great potential for the development of both country's industries and is an environmentalfriendly business model based on sustainable local production for local consumption.

KOMATSU CARE
"KOMATSU CARE" is a new service program thatcomes with new vehicular purchases for machinery
equipped with an engine that meets emission controlsof Japan, North America, and Europe. In addition to
the usual standard warranty (1 year), it comespackaged with extended powerline warranties
consisting of free and paid programs as well as
maintenance. We will continue contributing to highquality extended uptime through services optimized forthe latest environmentally compliant machinery.

The program includes cleaning of the KDPF
(Komatsu Diesel Particulate Filter), a new component
equipped to meet strict emission controls.

Komatsu Industries Corp and Komatsu NTC Ltd.
developed a fiber laser processing machine withexceptional laser oscillation efficiency and beamcharacteristics, and launched the "KFL Series" in
May 2013. For cutting 1mm thick stainless steel, thistechnology boasts half the power consumption
compared to that of the CO2 laser, six times fastercutting speed, and realized a 93% less reduction

KFL2051

consumption for the same amount of cutting. In
addition, the full cover structure over the entire machine ceiling ensures high level of safety.

With the adoption of the peak current suppression capacitor and theenergy regeneration mechanism, the new servo press, "H1F110-2,"
reduced the amount of power consumption by 56.6%, as compared toprevious mechanical press machines. In addition, the power supply
capacity is 17KVA, which is equivalent to the capacity of comparable
mechanical presses. This means that the new servo press can beinstalled without construction work to increase power capacity. The"H1F110-2" received the 2012 Japan Forming Machinery Association's
MF Eco Machine Certification (registration number: MF-P007).

H1F110-2

The thermoelectric power generation module is a device that utilizes the Seebeck effect, where twodifferent metals are connected and temperature difference is applied at the point of contact, which creates
an electrical current that flows between the metals.
We are distributing this device through KELK Ltd. Through the heat-treating furnace at the Awazu plant,
power is continuously generated and fed back into the power system.
In addition, we are participating in NEDO's (New Energy and Industrial Technology Development
Organization) "Research and Development of a Thermoelectric Power Generation Technology using Heat
Exhaust from Steel-making Process" project, and have begun 10kW class power generation verification
tests with JFE Steel's continuous-casting machine.
Thermoelectric power generation could reduce CO2 emissions by up to 1 million tons per year if plant heatexhaust recovery in Japan progresses, and grows to 50 percent.

Example of Verification Test in Heat-treating
Furnace at Awazu Plant

Example of Verification Test with Continuouscasting Machine (Provided by JFE Steel)As part of our efforts to mitigate climate change, Komatsu has adopted an indicator of CO2 emissions perunit of manufacturing value with respect to the amount of electricity, fuel gas, fuel oil, and other types ofenergy used in manufacturing operations. The Company established aggressive mid to long term objectives
in FY2007, setting a target of 20% reduction in average CO2 emissions in FY2008 to FY2012, as comparedto FY2000 levels.
In May 2012, medium-term goals had been for the 7th consecutive year, achieving a reduction in the
averages between 2008 to 2012 at approximately 29% compared to FY2000 levels. The primary impetus
came from enhanced production efficiency, which resulted from the inauguration of a new high-efficiency line
and the removal of an obsolete line and from the horizontal deployment of various improvements from the"Company-Wide Energy Saving Project Group" deployed in May 2012, as well as from other measures.

Refer to "Halving Electricity Usage Project" of Mitigating Climate Change for the main action of the
production section.

Reduction of the overseas CO2

Basic unit: CO2 emission Index per unit of manufacturing value at each manufacturing facilities, weighted
by ratio of manufacturing value of each site.

Power-Saving Activities
Komatsu has continuously pursued bothproductivity improvements and energy-saving
activities.
After experiencing electric power shortages in theservice areas of Tokyo Electric Power Co., Inc. andTohoku Electric Power Co., Inc. several months
after the Great East Japan Earthquake in 2011, it
was anticipated that electric power shortages would
occur in 2012 or later.
By detailed analysis of the use situation of electric power, it has discerned that it is possible to reduce 50%
or more of electric power finally.
Our new goal is to cut summertime peak electric power needs by 50% compared to consumption levels inthe summer of 2010. We plan to limit consumption to reduce the environmental impact.

Approach to Power-Saving
The fundamental methods for power reductionthat we will use are:(1)Control use of electricity to eliminate waste byrealizing lower energy requirements(2)Revamping production(3)Use alternative energy sources

(1) Reducing waste by realizing lower energy requirements
We construct a system that will automatically tracks power consumption by domestic Komatsu plants, andsend this information to the head office, to be made available for company-wide viewing.
In addition we are working on making it possible to visualize in even more detail the power usage of each
Komatsu building and facility.
Visualizing where power usage occurs will enable us to discover where power is being wasted, whichfacilities have poor energy efficiency, and the correlation between power usage and production activity. This
will help us move ahead with our power-saving activities more effectively.
In addition, we are promoting our activities to visitors and conducting awareness campaigns to generalstaff through digital signage in places like the office lobby.

Centralized Monitoring of Power and Facilities

Improving Efficiency by Updating Facilities(2) Production Reform: Reduce power usage by improving processing equipment and manufacturing
processes
About 60% of Komatsu production plants' power consumption by processing parts.
Komatsu has several manufacturing processes including machine processing and welding. In each area
we are working to reduce power usage by improving equipment, as well as by increasing efficiency in the
manufacturing process.

Power Reduction with Production Equipment
We can reduce power used during processing
and idling with inverter control and fine-tuned
stopping in auxiliary machinery such as pumps
and motors.
We can also shorten both processing andidling times by improving processing speed andcapacity utilization, machining time.

Improving the Manufacturing Process (Using CAE)
With the development of new production technology, we will reduce processing range and input
energy. In addition, we will reduce power consumption by accelerating the updating of facilities withhigh-efficiency state-of-the-art equipment.

(3) Using alternative energy: Getting the most out of sunlight and groundwater
Komatsu has installed solar panels on the rooftop of buildings to generate solar power.
We are also working on finding ways of taking advantage of renewable energy, such as using thestabilized temperature of groundwater to help with air conditioning.

New energy-saving buildings: Updating the buildings using the latest energy-saving technology
While implementing power usage reduction activities company-wide, we found that if we incorporate
energy-saving technology in structures being rebuilt, it would be possible to reduce power consumption by
about 50% in places such as office buildings and assembly plants, where the primary power consumption isdue to lighting and air conditioning. Because over 60% of Komatsu production buildings were built over 40
years ago, there have been cases where the narrow spacing between posts inhibits the construction ofefficient production systems.
Therefore, we have decided to move forward with the integrated renewal of production buildings.
In addition to utilizing the latest energy-saving technologies, we are aiming for significant improvement inproduction efficiency by incorporating production reform (streamlining) and reducing power consumption by
decreasing overall square footage of buildings.
Starting with construction on the Awazu Plant in 2013, we are expecting to invest 30-40 billion yen by
2020.

Basic Ideas(1)Use the latest energy-saving technology toachieve 50% reduction in power usage(2)Increase efficiency by production reform, andreduce size of facilities by 30%(3)Construct new buildings that use naturalenergy (sunlight, groundwater, etc.) more
effectively

New Awazu Assembly Plant

Reduction in power usage at the newly rebuilt structure(Awazu Plant)Lower CO2 Emissions of Global Transport(Basic Unit of CO2 Emissions per Cargo Weight)
In 2011, Komatsu began improving its assessment of CO2 emissions from logistics operations for its 10 majorinternational business locations.
Improvements were made on a consolidated basis globally at all 25 business locations, including domestic
locations.
In FY2012, a mid-term improvement plan was drafted to improve CO2 emissions at factories abroad, setting an
8% reduction (as compared to 2011 levels) as the goal for 2015. Komatsu is working towards achieving this goal.
Improvements made domestically in Japan will be applied abroad to achieve this goal.

Reducing Transport Distance by Utilizing Near Ports■Abroad: England's KUK Plant
Parts imported from Japan for component assembly(CKD) were unloaded at Southampton Port thentransported by rail to the KUK Plant. By changing theunloading port to South Shields the land transportdistance was reduced by 94%.
The effect on CO2 reduction was 177 t- CO2/year.

KUK and Land Transport Distance■Domestic: Ibaraki Plant
The usage rate of Hitachinaka Port, closest to the
Ibaraki Plant, surpassed the mid-term goal of 95% for
an 11.6% increase to the previous year at 96.1%. Thechange in usage from unloading at Yokohama fortransport by truck (160km) to unloading at Hitachinaka
Port and transporting 4km resulted in CO2 reduction by
65 t- CO2/year and the land transport distance was
reduced by 98%.
Hitachinaka Port Usage RateIn order to encourage our suppliers to pursue CO2 emissions reductions, we are expanding Komatsu's
energy-saving activities to our major outsourcing suppliers in an effort to reduce power usage by 50%.
In June 2012 we kicked-off these activities, starting with the training of their management and facilities
personnel.
We will continue to promote these activities in FY2013, in hopes of visualizing improvements andhorizontal expansion in each company.

With the revision of the Act on the Rational Use of Energy, all Komatsu business units are assessing CO2
emissions in an effort to achieve reductions. The energy consumption of non-manufacturing divisions,
including the Head Office building and the Research Division is shown in the table below.

Energy Consumption of Non-manufacturing Divisions (FY2012)

Komatsu
Manufacturing(for reference)

Nonmanufacturing

Main sales and after-sales service
Main
divisionspartnercompanies
Sales of(99
construction Rental
Liftcompanies) equipment

CO2(1000t)

136.9

7.1

400.5

4.5

2.2

2.8

Crude-oilequivalent(1000kl)

75.4

3.8

195.8

2.6

1.3

1.7

Komatsu Castex Ltd, which is in the casting business, emits about 30% of the CO2 generated by the Komatsu Group.
In an effort to reduce its environmental impact, the plant has been switching to energy-saving equipment and facilities,
increasing efficiency in production. In addition, the plant introduced the latest high-frequency melting furnace, and has
been working to reduce emissions of greenhouse gases such as CO2. In December 2012, these efforts wererecognized as remarkable achievements over several years in implementing countermeasures against global warming,and the plant was awarded the "Toyama Prefecture Environmental Conference Chairman Award."

Toyama Prefecture Environmental Conference Chairman Award«Related Articles»«Global Environmental Policy»
Relationship between Business Activities and the EnvironmentIn our Reman business, the Komatsu Group remanufactures used engines, transmissions, and otherkey components (parts) of construction and mining equipment into "remanned" components thathave the same high quality as newly manufactured components. We then put these components
back on the market. The Group is promoting the Reman business at eleven Reman Centers aroundthe world.

Promoting the Reman Business to the World
Reman, an abbreviation for remanufacturing, offers the following advantages to customers:·Quality and performance that is the same as new components·Lower cost for "remanned" components·Reduced idle time for construction equipment because of adequate inventory of remanned
components·Resource conservation and waste reduction through reuse and recycling of components.
As the global center, Komatsu established PT Komatsu Reman Indonesia (KRI), which supplies parts,
such as engines and transmissions for large-size construction machinery, and PT Komatsu Indonesia (KI),which supplies oil-pressure cylinders. Komatsu also established another global center, Komatsu RemanCenter Chile (KRCC), which provides components for electric dump trucks.
Additionally, Komatsu established PT KOMATSU REMANUFACTURING ASIA (KRA) in Indonesia torecycle components of large-size construction machinery. For countries that are not part of our global supply
chains, such as China, Russia, and India, we have established individual Reman Centers. For example, inJanuary 2013, we established the eleventh Reman Center in Brazil.

Reman Factories and Centers map

The Brazil (KDB) Reman Centerestablished in January 2013

Providing Reman-related Information
The Komatsu Group has set up "Reman-Net" as a network for Komatsu Reman Centers around the world.
The Group is actively using this network to develop Reman operations for reuse and recycling ofcomponents at the global level.
IC tags and two-dimensional bar codes are used to manage each item's remanufacturing history, and to
track quality and durability information. This important information is reported to the Group, to help develop
components with optimal service life.

Future Steps
To further increase the reuse rate of used components the Komatsu Group is reducing the number ofdisposed parts by:·Developing parts for remanufacturing, oversized parts, etc·Developing recycling-related technologies (assessment and measurement for reuse, manufacturing
worn-out parts, high-pressure cleaning, heat treatment, etc.)
to reduce waste components, and thereby further increase reuse and recycling activities.

Reman ProcessChanges in Reman Ratios (base 2004 = 100)

In tandem with reducing the amount of waste
produced during manufacturing operations,
Komatsu engages in "zero emissions" activities touse waste materials as resources. Starting in
FY2011, Komatsu set new medium-term goals forour recycling rate and for the amount of waste
generated per unit, and we are working toward
those goals. In an effort to attain zero emissions,
Komatsu raised the target recycling rate which was

Strong Waste Liquid Disposal Equipment

99.5% or greater by FY2015. Our recycling rate
reached 99.6% in FY2012, achieving the mid-termgoal earlier than planned for the second year in arow.
Komatsu had projected cuts in the amount of waste materials generated per unit of manufacturing value inFY2015 of 20% or greater, compared to the FY2005 level. As a result of strict adherence to separated-waste
collection and increased conversion of waste materials to resources, the amount of waste materials
generated per unit has been trimmed by 41.3%, compared to the FY2005 level. In particular, the Oyama
Plant implemented strong liquid waste disposal equipment, in an effort to greatly reduce liquid waste, andhalved its generated waste in comparison to the previous year. Komatsu aims to continue its effective
separated waste collection policy to achieve its medium-term goals.

In FY2011, Komatsu set a new medium-term target of achieving a 25% or greater reduction in the amountof water used per unit of manufacturing by FY2015, compared to the FY2005 level. The water-conservation
campaign concentrates on manufacturing facilities with extensive groundwater usage located in the Hokuriku
District. The Company has achieved reductions in the amount of water used per unit of manufacturing by
39.8% compared to the FY2005 level, through the reuse of water during processing and the elimination ofwasteful day-to-day practices.
In particular, the Awazu Plant significantly reduced its groundwater consumption through measures suchas adjusting the pump discharge, reevaluating the temperature of cooling water used for heat treatment, andthe installation of water-circulation equipment. As a result, the Awazu Plant was able to reduce water usage
by more than 70% per unit of manufacturing value.
Komatsu will continue efforts to save water resources to achieve its medium-term goals.

Komatsu Group companies periodically report and archive environmental measurement results, inaccordance with applicable laws and regulations of national and local authorities. Komatsu had no violations
relating to the environment, and no major accidents that could result in pollution, in FY2012.

Addressing Soil and Groundwater Contamination
Komatsu has established guidelines for testing soil and groundwater at our Japan facilities, and we
perform investigations according to applicable laws and regulations at business units that are to be sold,closed, or demolished. If contamination is found, the Company takes appropriate measures under thesupervision of local authorities. We are performing voluntary investigations at currently operating business
units to check for contamination from volatile organic compounds (VOC) from cleaning solvents that wereused in the past.
Komatsu has been surveying soil and groundwater for VOC contamination at Group business units inJapan since 2005. Business unit sites at which contamination has been detected have implemented
countermeasures. The Company has selected methods to clean up the sites as quickly as possible.
Work at the Oyama Plant was completed in FY2009.
In FY2012, change in land character notifications were filed at the Kanazawa, Oyama and Koriyama
Plants, in accordance with the provision of Article 4, Amended Soil Contamination Countermeasures Act.
No survey order was issued from administrative authorities in relation to these sites because there was noconcern regarding possible contamination.
In addition, at the Osaka Plant, a report for Article 12 was submitted for land specified by Article 14 as anarea requiring change in land character notifications, and the change in land character was undertaken.

Status of Soil and Groundwater Cleanup in Japan
Business unit

Cleanup method

Cleanup status

Awazu Plant

Excavation and removal, soil vapor
extraction,
groundwater withdrawal and aeration,bioremediation

In process

Komatsu Plant

Excavation and removal, groundwater

In process(formerly)

withdrawal and aeration, bioremediation

Osaka Plant

Soil vapor extraction, air sparging,groundwater withdrawal and aeration,bioremediation

In process

Shonan Plant

Excavation and removal, groundwater
withdrawal and aeration

In process

Tochigi Plant

Excavation and removal, bioremediation

In process*Bio-remediation is purification process of hazardous materials through utilizing micro organisms and returning the soil to a
non-hazardous state.
-Surveys revealed no contamination for the Koriyama Plant, Research Division in Hiratsuka, Techno Center in Izu andField Testing Department in Oita.

Managing PCB (Polychlorinated Biphenyl) Waste
Komatsu stores and manages PCB-containing waste, such as transformers, in accordance with Japan’s"Law Concerning Special Measures Against PCB Waste" and the "Waste Disposal and Public Cleansing
Law." In FY2008, Komatsu entrusted PCB disposal to the Japan Environmental Safety Corporation(JESCO). A total of 234 PCB-containing capacitors were disposed of by FY2011.
In FY2012, JESCO disposed of an additional 101 capacitors. Additionally, Komatsu conducted a second
review into the status of PCB-containing stabilizers, including those for fluorescent lamps, used in the
Komatsu Group in Japan. As a result, about 3,900 condensers, including some in use, were found tocontain PCB.
Continuing through 2013, we plan to carry out further disposal work to locate low-concentration PCB
waste as well.

Number of PCB-containing Transformers and Capacitors in Storage
Company

Number of
disposalin FY2012

Site

Number of storageHighdensityLowdensity

Head office

0

0

7

Awazu Plant

9

58

112

Osaka Plant

0

0

31

Oyama Plant

60

253

41

Shonan Plant

0

2

1

Tochigi Plant

0

5

11

Field Testing Department

0

0

3

Construction & Mining Equipment Marketing
Division

0

0

3

69

318

238

Komatsu Castex Ltd.

0

0

20

Komatsu NTC Ltd.

29

2

0

Komatsu Ltd.

Subtotal of KomatsuKomatsu Cabtec Co., Ltd.

0

2

12

Komatsu House Ltd.

0

1

4

Komatsu Construction Equipment Sales and Service Japan Ltd.

3

17

15

Komatsu Rental Ltd.

0

0

1

Total of Komatsu group

32

22

52

Total

101

340

261

-The share from the former Komatsu Plant was transferred to the Awazu Plant. The share from the former Mooka Plant
was transferred to the Oyama Plant.
-The share from the former Kawagoe Plant is included in the Head office total.

Reducing the amount of PRTR-related substances and VOC released
VOCs such as xylene and ethylbenzene, which are used in paint coating, account for most of Komatsu's
emissions of PRTR-regulated* substances. Though reductions in emissions in FY2012 were mostly due toreductions in production, the emission output level was improved as well. We plan to further reduce VOC
emissions through approaches such as, (1) shifting to high solid paint, and (2) improving paint application
rate.

*PRTR:Law designed to mandate the disclosure of the amount of specific chemical substances released into theenvironment to promote the management of such substances (The notification system based on the PRTR Law)

Names of Class I Designated Chemical Substances and the Amounts
Released and Transferred by Group Manufacturing Facilities in Japan(handling 1 ton or more, or 0.5 ton or more for Class I Specified Chemical Substances) (applicable PRTR
substances from April 2010)(Unit: t)

Number
under
the
PRTR
Law

Name

412

Manganese and its
compoun
ds

560.8

80
53

Amounttransferred

Amount released

AmounthandledSoil

Buried Sewage Waste

Chemicallytransformed
oreliminated

AmountContained
in
Products

Air

Water

1.1

-

-

-

-

15.6

-

544.1

Xylene357.4 260.5

-

-

-

-

21.2

73.7

2.1

Ethylbenzene

220.1 193.4

-

-

-

-

12.7

13.6

0.3

87

Chromium and chromium(III) comp
ounds

162.1

0.0

-

-

-

-

1.7

-

160.4

300

Toluene

120.8

93.9

-

-

-

-

18.5

6.1

2.4

438

Methylna
phthalene

102.2

4.3

-

-

-

-

-

91.6

6.2

453

Molybdenum andits compo
unds

45.1

0.0

-

-

-

-

0.0

-

45.1

448

Methylenebis (4,1phenylene) = diisoc
yanate

32.2

0.0

-

-

-

-

0.0

31.9

0.2

296

1,2,4trimethyl
benzene

31.8

9.2

-

-

-

-

1.0

20.9

0.8

308

Nickel

21.5

0.0

-

-

-

-

0.4

-

21.2

88

Chromium (VI)
compounds *1 *2

11.8

0.0

-

-

-

-

2.9

-

0.0

321

Vanadiumcompoun
ds

9.0

-

-

-

-

-

-

-

9.0

277

Triethyla
mine

9.0

1.8

-

-

-

-

0.0

7.1

-

297

1,3,5trimethyl
benzene

8.2

4.0

-

-

-

-

0.5

3.7

-

132

Cobalt and its comp
ounds

8.1

-

-

-

-

-

1.1

-

7.0

392

n-hexane

5.8

3.4

-

-

-

-

0.0

1.5

0.9

188

N,Ndicyclohe
xylamine

5.0

0.3

0.0

-

-

-

4.2

0.2

0.1

349

Phenol *3

4.4

0.4

-

-

-

-

-

4.0

-

258

1,3,5,7tetraaza
tricyclo[3,3,1,1(3,7)]
decane *3

4.2

-

-

-

-

-

-

4.1

0.1

405

Boron
compoun

3.3

-

-

-

-

-

2.1

1.2

0.1

ds

207

2,6-Di-ter
t-butyl-4methylph
enol

3.0

1.0

0.0

-

-

-

0.4

0.0

1.5

302

Naphthale
ne

2.8

1.3

-

-

-

0.0

0.3

1.1

-

71

Ferricchloride

2.4

-

-

-

-

-

2.4

-

-

1

Zinc compounds(water- soluble)

1.0

-

-

-

-

-

0.0

-

1.0

*1: During chrome plating, chromium (VI) compounds become chromium compounds. Therefore, the amount transferred
and the amount contained in products are entered as chromium and chromium(III) compounds.
*2: PRTR Class I Specified Chemical Substances*3: Although the amount contained is below the amount that requires registration with the PRTR, we report the data
because the amount released exceeds one ton.

Breakdown of the Amount of PRTR-related Substances Released andTransferred at Komatsu Group Manufacturing Facilities in Japan

Changes in the Amounts of PRTR-related Substances Released*
at Group Manufacturing Facilities in Japan

Amount of VOC Released by Group Manufacturing Facilities in JapanKomatsu has been making efforts from an early stage to reduce the use of asbestos, lead, and othersubstances of environmental concern. In FY1999, Komatsu created its own list of banned substances andsubstances approved for use only in limited circumstances(Refer to "Substances of Environmental Concern
Banned or to Be Reduced for Use in Products"), which was based in part on the chemical substancesbanned under Japan’s Law Concerning the Examination and Regulation of Manufacture of Chemical
Substances Control, as well as regulations in other countries.
In addition, Komatsu has begun comprehensive control of substances of environmental concern. Recently,
in compliance with REACH*1, Komatsu began revising its listing of substances designated as approved forlimited use, "to be reduced," and "banned." Through the cooperation of suppliers, the Company has initiateda system to strengthen control of substances of environmental concern in its products. This system has been
deployed in Japan and Europe, and is also being implemented in other overseas subsidiaries.
By using this system, we identify SVHC (substances of very high concern) in vehicles currently in
production and in newly developed vehicles. Furthermore, we also regularly check for new SVHCs to be
added to the list.
There are currently 138 SVHCs registered, but more are added on a bi-yearly basis. In future, it is said
that the number of SVHC will increase up to 1,500. Komatsu has devised a workflow to monitor control ofthese substances.

Control System for Substances of Environmental Concern

Substances of Environmental Concern Banned or
to Be Reduced for Use in Products
Rank

NumberChemical Substance·Hexavalent Chromium·Cadmium·Tri-substituted Organostannic Compounds
Banned13·PBB/PBDE·PCB·Asbestos·Specified CFCs/Alternative CFCs (HCFC)·Trichloroethylene·Triethanolamine·Hexachlorobenzene·PFOS (Perfluorooctanesulfates)

To be
reduced(Subject tolimited use)

·Lead

·Mercury*3·Selenium·Alternative CFCs (HFC)·Arsenic·Specified phthalate ester (DEHP/DBP/BBP/DIBP) *2,*3
15·Specified Brominated Flame Retardents (HBCDD)*3/ Specified
Chlorinated Flame Retardents (TLEP)·Polycyclic Aromatic Hydrocarbons (PAH)·RCF (Fire-Resistant Ceramic Fibers) (Alumina and Scilica Types)·Methanol

Substancesof
Very High
Concern·DZ

(SVHC)under
the EU(138)*4
REACH
Reguleation·DEHP/DBP/BBP/DIBP·HBCDD/Trisphosphates (2-Chloroethyl)·RCF·Specified Lead Compounds (SOC 4)*1: REACH: EU regulations for Registration, Evaluation, Authorization and Restriction of Chemicals*2: Diethylhexyl phthalate, dibutyl phthalate, benzyl butyl phthalate, diisobutyl phthalate*3: Under review for stricter limits due to regulatory trends.
*4: The number of substances registered up until December, 2012 (progressively updated). Includes materials that are notcontained in Komatsu construction equipment.

Komatsu will maintain our commitment to protecting biodiversity in our business activities, recognizing
the impact of those activities on the ecosystem.

With the establishment of Komatsu's "Declaration of Biodiversity" and "Biodiversity Guideline" in January 2011,
Komatsu business units worldwide began activities designed to preserve biodiversity.
Komatsu promotes initiatives to preserve biodiversity on two levels.
First, the Company continues to promote ongoing efforts to reduce the environmental impact of Komatsu's
business activities. Komatsu also considers biodiversity when deciding how land is to be used, such as whenbuilding factories.
Second, Komatsu is becoming directly involved in the preservation of biodiversity, and at the same time
expanding our "one-site, one-theme activities" to raise employee's awareness of the need to preserve local
ecosystems.

Declaration of Biodiversity by Komatsu (Excerpt/Summary)
Komatsu recognizes that its business activities are dependent on and influence benefits from theecosystem through its biodiversity.
Based on this understanding, Komatsu strives to take actions in accordance with the policies
described below, as it shares a sense of responsibility regarding the biodiversity crisis, and strives toconserve diverse resources.
Ⅰ(Recognition by Management)
Komatsu recognizes that conservation and promulgation of biodiversity are important managementtasks.
Ⅱ(Initiatives)
Komatsu shall promote biodiversity through the following two perspectives
1.Komatsu shall reduce its environmental impact, which is affecting biodiversity, throughits business activities.
(1)Reduction of environmental impact of products(2)Reduction of direct environmental impact from products throughout lifecycle.
(3)Consideration of biodiversity when using land.
2.Komatsu shall work for conservation and promulgation of biodiversity through its social
contribution activities.

Ⅲ(Operation)
Komatsu shall promote activities by means of a step-by-step approach.
Ⅳ(Cooperation with the community)
In order to protect the biodiversity rooted in regions, Komatsu will undertake activities in coalition withadministrative agency, local citizens, NGOs and other entities; by doing so we aim become acorporation communities can be proud of.
Ⅴ(Full participation activities)
Komatsu will promulgate the importance of biodiversity to all employees and undertake activities with
their full participation. We will involve corporations related to the lifecycle of Komatsu products andrepresentative agencies as well as customers in these activities and promote our initiatives on a global
group-wide scale.
Ⅵ(Communication)
Communication: Komatsu will strive to educate and disclose related information to employees. In
addition, Komatsu will actively disclose information on activities being undertaken and work tocontribute in heightening the level of societal awareness on the importance of biodiversity.

Evaluation of Activities concerning Biodiversity■Utilization of the "Land Use Score Card"
Komatsu utilizes the "Land Use Score Card" and the "Living Things Monitoring Sheet" formulated by Japan
Business initiative for Biodiversity (JBIB), a general incorporated association.
The "Land Use Score Card" scores the effort level of a business site in its biodiversity activities out of a

maximum of 100 points in 3 categories consisting of 17 items.
Komatsu conducted this evaluation at 15 of our bases in Japan, including the head office. Of those, the 2 top
scoring bases are presented below.
We will continue to promote activities in order to strive to achieve higher scores in this evaluation.

Items and Scoring of the Land Use Score Card®

■Study Conducted with the Living Things Monitoring Sheet

The Living Things Monitoring Sheet allows employees to monitor organisms even if they are not experts throughthe identification of silhouette, and is a collection of species that act as an indicator of the environment. As shown
below, the silhouettes are divided into 66 species in all.
The results of the studies conducted at the 15 Komatsu sites throughout Japan are shown below. Depending on
the site, studies were conducted 4 times throughout each season at business facilities.
Moving forward, these studies will be periodically conducted each year.

Class

Initiatives of Each Business Facility

Number ofSpecies

Fowl

17

Odonata5

Branchiura

8

Hymenoptera

4

Cicadidae

1

Coeoptera

7

Achidioidea

1

Aquatic
Insects

4

Arachnids

2

Pulmonata

2

Bombina3

Plants

4

Fungi

3

Edaphone5

■Oyama Plant: Biotope Construction
At the Oyama Plant, 10,000 tons of flood-control space and green pond were preserved on the plant's premises.
In the future, we plan to construct a biotope and natural wood area in this area.
In some areas, work such as pruning and thinning the brush has already started. Colonies of herons and several
rare plant species have been observed in this area. We plan to maintain the area, to further promote conservation
activities.

Biotope

Heron Colony■Komatsu Castex: Study on Ponds
Komatsu Castex is surrounded by ponds that have never been observed by anyone, and so these ponds werestudied for the inhabitant organisms.
Among other species, the common carp, crucian carp, Chinese pond turtle, mitten crab, and killifish wereidentified. In particular, the number of crucian carp was a great surprise; there were 432 of them living in the pond.

Lake that was studied

Size of captured crucian carp

■Komatsu NTC: Biotope Creation
Komatsu NTC has voluntarily taken up the
responsibility of operating and managing a city's publicpark close to its facilities. The employees now utilize thepublic park as a site for their biodiversity conservation
activities.

The public park operated and managed by
Komatsu NTC■Koriyama Plant: Biotope Creation
The Koriyama Plant created a biotope on vacant landnext to the general office.
Efforts in improvement and conservation activities willcontinue throughout the future to create an even better
habitat for organisms.

Biotope completed last year

Awazu Plant Awarded for Efforts in the Kibagata Recovery
Project
The Kibagata Environment Forum was heldin February 17, 2013, where KOMATSU's
Awazu Plant was awarded by the Kibagata
Environmental Improvement Pro-Resolution
Union (group consisting of local neighborhoodorganizations, NPOs, corporate businesses
and other entities) for contribution to the
Kibagata Recovery Project.
Awards ceremony at the Kibagata
Environment ForumThe basic framework for education in the Komatsu group divides functions in a way where educationof common knowledge is supervised by the Head Office and specific education, unique or distinct tooccupation, is administered by respective divisions.

The environmental education for FY2012 followed a curriculum that was in essence the same as that ofthe previous year. We continued emphasizing education on environmental laws in FY2012, which has been
our focus since FY2010. In addition, in FY2012, we rigorously engaged in programs targeting employees toraise awareness over the importance of conserving biodiversity. In regards to increasing licensed personnel
relating to the environment, we plan to promote the acquisition of their qualification.

Courses in Environmental Education and Training in Japan(excluding general environmental courses)
Participants
Organizer

No.

Course name

Target
FY2009 FY2010 FY2011 FY2012

1

Advancedenvironmental
education(held every two
years)

Environmental
specialists(Komatsu andaffiliates)

16

-

16

-

2

Overview of theISO14000 series

Managers(Komatsu, affiliates,and businessassociates)

55

83

74

72

3

Training of internal Environmental
auditors
auditors /Refresher courses (Komatsu, affiliates,and business

40

273

103

380

associates)

Head Office

Divisionsoverseeing
environmental
management at
plants4

Development andmanufacturing(introductory)

Development andmanufacturing staff(for second-year
employees)

182

112

266

248

5

Environmental
training for
manufacturing
engineers

Assistant foremen/
foremen/manufacturing
engineers/ studentsof Komatsu Instituteof Technology

91

114

158

160

6

Training new
employees

New Employees(Komatsu andaffiliates)

115

200

229

354

7

Lectures on theenvironment,
Komatsu Groupexperienceemployees
oriented education

398

1,002

1,300

1,316

8

Education torefreshenvironmental
understanding,(e-Learning)

Komatsu Groupmanagers andemployees

237

194

251

153

9

Education forbiodiversity

Komatsu Group
employees

-

-

889

252

1

Education in thebasics of auditing

Managers andemployees

98

99

183

221

2

Overview of theISO14000 series

Managers andemployees

836

468

409

183

3

Training of internal Environmental
auditors
auditors

7

26

27

38

4

Training new
employees

New Employees

1,116

1,240

1,020

940

5

Regulatory
education andpersonnel
exchange

Employees (andother participants)

517

448

1,232

1,066

Specialist training

Environmental
conservation
practitioners(persons involved inregulatory affairs,
etc.)

2,466

952

2,165

2,561

6

In addition to the education and training courses listed above, Komatsu also held courses dealing with environmental
issues intended for sales agents.

Number of Persons Having Environment-related Certificate
Number of persons with certificate*
Certificate name
FY2009FY2010FY2011FY2012

Pollution control administrators

177(39)178(33)

241(33)230(33)

Energy administrators

48(13)

42(10)

45(10)

45(10)

7

6

6

4

Environmental management system
auditors

Figures in parentheses indicate the number of officers required.

We have published the environmental accounting to get the objective evaluation of theenvironmental conservation activities.

Environmental Costs (Investments and expenses)
Komatsu and Komatsu Group manufacturing facilities in Japan (including the Research Division)

Investment
FY2011Category

1
Business area
cost

(1).
Pollution
prevention
cost

(2).
Globalenvironmental
conservation

Investment*1(millions ofyen)

Expenses

FY2012
Investment*1(millions ofyen)Contents

795

3,201

400

- Investment for
installation andconversion ofpollution
mitigation/prevention
1,107
facilities(installation ofparticle collectors,
effluent processing
facilities, etc.)

375- Investment for
implementing
1,505 energy conservation
measures(conversion oflighting to LED,

FY2011FY2012

Expenses Expenses*1*1(millions(millionsof yen)of yen)Contents

3,624

3,696

1,189

- Cost of maintaining
equipment for
mitigation/preventionof air and water
1,095 pollution and fornoise and vibration
prevention(labor anddepreciation costs)

1,401- Cost of maintaining
1,322 energy conservation
facilities, such ascogeneration
systems

cost

(3).
Resource
circulation
cost

2
Upstream/
downstream
cost

3Administration
cost

installation of solar
power generators,
and such)

20

0

450

4
R&D cost

202

5
Social activity
cost

15

6
Environmental
remediationcost

0- Investment for
reducing the volume
of waste materials(conversion of589 recycling facilities,
introduction ofequipment for
separating waste,
etc.)

0

- Investment for
76 beautifying
manufacturing sites- Investment inresearch facilities for
457 reduction ofenvironmental
impact00(labor anddepreciation costs)

1,034

1,279

- Waste material
processing cost234

- Reduction of theenvironmental
impact ofcomponents, etc.
shipped outside
201
Japan
- Reduction of theenvironmental
impact of massproduction units

885- Cost of maintaining
environmental
management
systems
861- Cost of creating
green spaces andbeautifying
manufacturing sites

14,330- Cost of R&D
activities to reduce
the environmental
impact of products
18,989 - Cost of R&D
activities to develop
environmentallyfriendly construction
equipment

21

10

531

- Cost of conducting
surveys andremedialcountermeasures464
related to soil andgroundwatercontamination- PCB disposal costs

Total

1,462

3,734

19,62524,221*1 All figures are rounded off to the nearest million yen.

Environmental Effects
Komatsu and Komatsu Group manufacturing facilities in Japan (including the Research Division)

Environmental impact reduction effects
Items of environmental impact

Reduction amount (t/year)

Rate of year-on-year changes(%)

CO2 emissions-55,182-20.6

Water consumption-976,567-17.9-3,929-19.7

Waste materials generation

Komatsu and Komatsu Group manufacturing facilities in Japan (including the Research Division)

Economic benefits
Tangible benefits

Type

Energyconservation
Resource
conservation

Monetaryvalue*1(millions ofyen)

Major activities

Avoidance benefits ofenvironmental risks*2

Contribution to
profits*2- *There were no
accidents or pollution in
Japan during FY2012
that led to violations of
the law.
- *No litigation costs
were required in Japan
during FY2012.

- Proceeds from mobile
recycling equipment- Proceeds from value
added due to reduced
environmental impact
of products (engines)

1,079 - Energy conversion, etc.
3

Waste
materials
reduction- Promotion of recycling
710 through thoroughgoingsortingGain on saleof valuables

422

Other

15

Total

2,229

- Reuse of furnace slag
for roadbed materials*1:Figures are rounded off to the nearest million yen.
*2:Komatsu used statements instead of numeral figures to describe the “Avoidance benefits of environmental risks” and the“Contribution to profits.” The company will further develop concepts and ways to understand effects in these categories.
The sales amounts of businesses for content presented in “Contributions to profits” in FY2012 are as follows:- Mobile recycling equipment business:

3.1 billion yen- Engine business:

142.7 billion yen(Total for intra-Group sales from the Engine Business Division)Effects on Society *1
Environmental impact reduction effects- Environmental impact reduction resulting from onsite recycling methods- Environmental impact reduction resulting fromproduct operation- Waste components reduction resulting from
“Reman” businessTangible benefits- Reduction of expenses for processing wastematerials- Savings in operating and maintenance costs- Reduction of repair costs*1 Concerning the effects on society derived from product use by customers, the major items of qualitative information are
shown here as a reference.

Regarding the Independent Practitioner's Review
Komatsu views the independent practitioner's review process as crucial for ensuring the integrity and objectivity of its
Environmental Report. For that reason, Komatsu has received an independent practitioner's review from Deloitte
Tohmatsu Evaluation and Certification Organization Co., Ltd., a member of the Deloitte Touche Tohmatsu Group. The
results are as represented below with regard to the information appearing in the Environmental Report 2013.
Deloitte Tohmatsu Evaluation and Certification Organization Co., Ltd.

Supplementary Explanation regarding the Conducting ofIndependent Practitioner's Review Procedures

The corresponding section of the Independent Practitioner's Review
Komatsu has received an independent practitioner's review from Deloitte Tohmatsu Evaluation and Certification
Organization Co., Ltd. and gives the check markto the corresponding section in this web site.

Komatsu Group Manufacturing Facilities in Japan
Komatsu (parent company) manufacturing facilities, specifically the following eight plants
The Awazu Plant [including the Komatsu NTC Ltd (KM Division).], the Kanazawa Plant [including the
Kanazawa-Daiichi Plant, the Kanazawa-Daini Plant and the Kawakita Plant], the Osaka Plant [including the
Rokko Plant], the Ibaraki Plant and the Oyama Plant [including Komatsu Cummins Engine Co., Ltd.,
Industrial Power Alliance Ltd. and GIGAPHOTON, Inc.], the Koriyama Plant, and the Shonan Plant [including
KELK Ltd.], the Tochigi Plant.

Komatsu Group manufacturing facilities in Japan, specifically the above eight plants and the following fourbusiness units
Komatsu Castex Ltd., Komatsu Cabtec Co., Ltd., Komatsu NTC Ltd. [including Toyama Kiko Corporation,
and D.S.K. Co., Ltd.] and Komatsu House Ltd.

Komatsu Group Manufacturing Facilities Outside Japan
Komatsu Group manufacturing facilities outside Japan, specifically the 23 business units appearing on theworld map below.

Komatsu Group manufacturing facilities including outside Japan:All of the 35 above-mentioned offices areshown.

Guidelines Used As Reference"Environmental Report Guidelines 2012" (Ministry of the Environment of Japan)"The Sustainability Reporting Guidelines G 3.1" (Global Reporting Initiative [GRI])
Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain Ver 2.0(Ministry of the Environment and Ministry of the Economy, Trade and Industry of Japan)
Policy on Emissions Unit Values for Accounting of Greenhouse Gas Emissions, etc., by Organizations
Throughout the Supply Chain Ver 2.0 (Ministry of the Environment and Ministry of the Economy, Tradeand Industry of Japan)

Period Covered
This report principally covers data for the period from April 2012 to the end of March 2013, with some
information from after April 2013.

CMO

PMO

NMO

Komatsu America Corp.
Manufacturing facilities

Overview

Chattanooga
Manufacturing
Operation

PeoriaManufacturing
Operation

Newberry
Manufacturing
Operation

Location

Tennessee, U.S.A.

Illinois, U.S.A.

South Carolina,
U.S.A.

Main products

Hydraulicexcavators,
motor graders

Large wheel
loaders,
large dump trucks

Utility equipment(small construction
equipment)

Number of
employees

-

420

884

151

Electricity

MWh

8,209

18,984

3,201

-

168

-

1,166

2,613

7

Heavy oil, lightoil, et al.

klNatural gas

thousandm3

LPG, et al.

t

-

50
(LPG)

488
(LPG)

Total energy
consumption

GJ

126,025

297,21960,552

CO2

t-CO2

6,917

16,432

3,559

Water consumptiont

14,08653,098480

Total emissions of waste

t

1,673

3,084

291

April 1998

March 2002

March 2004

Energyconsumption

Date of ISO14001 certification acquisition

KDB

Hensley

Komatsu do Brasil Ltda.

Hensley Industries, Inc.

Manufacturing facilities

Overview

LocationSão Paulo, Brazil

Texas, U.S.A.

Main products

Hydraulic excavators,
bulldozers

Buckets, teeth and edges

Number of
employees

-

1,040

510

Electricity

MWh27,842

42,625

Heavy oil,light oil, et
al.

kl

425

121

thousandm3-

4

Natural gas
Energyconsumption
LPG, et al.

t

335
(LPG)

87
(LPG)

Total energy
consumption

GJ

310,745434,143

CO2

t-CO2

4,462

24,888Water consumptiont27,95447,618

Total emissions of wastet

14,832

33,523January 2002

November 2009

Date of ISO14001 certificationacquisition

1. All data, except the number of employees, were derived from performances of all manufacturing facilities during FY2012.
The number of employees was based on the companies’ data as of March 31, 2013.
2. Conversion to CO2 and total energy consumption were based on statistical data of each region, country, and that of IEA
for 2012.
3. Total emissions of waste are expressed as a composite of the amount recycled and the amount disposed.

KUK

KOHAG

KMG

Komatsu UK Ltd.

Komatsu Hanomag
GmbH

Komatsu Mining
Germany GmbH

Location

Birtley,
United Kingdom.

Hannover,
Germany

Düsseldorf,
Germany

Main products

Hydraulic excavators

Wheel loaders,compactors

Ultra-large hydraulicexcavators

Manufacturing facilities

Overview

Number of
employees

-

335

448

935

Electricity

MWh

5,478

4,756

7,231

Heavy oil,light oil, et al

kl

233

-

83

Natural gas

thousand
m3

712

939

1,296

LPG, et alt-2,478*(District heating)

10
(LPG)

Total energy
consumption

GJ

89,057

84,641

122,327

CO2

t-CO2

4,704

5,410

5,545

Water consumptiont

17,673

7,774

11,980Total emissions of waste

t

1,038

813

6,446

December, 1998

September, 2000

July, 2002

Energyconsumption

Date of ISO14001 certificationacquisition*Unit: MWh
KUE

KFAB

Komatsu Utility Europe S.p.A.

Komatsu Forest AB

Manufacturing facilities
Location

Este (PD), Italy

Ume Sweden

Main products

Utility equipment(small construction equipment)

Forestry equipment

Overview

Number of
employees

-

360

391

Electricity

MWh

2,802

2,565

Heavy oil,light oil, et
al.

kl

-

-

thousand
m3

516

-

LPG, et al.

t-1,987*(District heating)Total energy
consumption

GJ

47,75028,633

CO2

t-CO2

2,261

212

Water consumption

t

8,542

4,979

Total emissions of waste

t

808

295

November, 2001

October, 2003

Natural gas
Energyconsumption

Date of ISO14001 certificationacquisition* Unit: MWh

Manufacturing facilities

Overview

KMR

STAVMEK

Komatsu Manufacturing Rus
LLC

Stavmek s.r.o.

Location

Yaroslavl, Russia

Czech Republic

Main products

Hydraulic excavators,
Forklift trucks

Manufacture of sheet metal partsfor construction equipment

Number of
employees

-

228

159

Electricity

MWh

2,965

3,023

Heavy oil,light oil, et
al.

kl

35

-

1,137

373

EnergyNatural gas
consumption

thousandm3

LPG, et al.

t

-

-

Total energy
consumption

GJ

77,35843,418

CO2

t-CO2

3,324

2,330

Water consumption

t

9,419

16,915

Total emissions of waste

t

779

226

-

April 2012

Date of ISO14001 certificationacquisition

1. All data, except the number of employees, were derived from performances of all manufacturing facilities during FY2012.
The number of employees was based on the companies’ data as of March 31, 2013.

2. Conversion to CO2 and total energy consumption were based on statistical data of each region, country, and that of IEA
for 2012.
3. Total emissions of waste are expressed as a composite of the amount recycled and the amount disposed.

KI

KUI

BKC

Manufacturing facilities

PT Komatsu
Indonesia Tbk

PT Komatsu
Undercarriage
Indonesia

Bangkok KomatsuCo., Ltd.

Location

Jakarta, Indonesia

West Java, Indonesia Chonburi, Thailand

Hydraulicexcavators,
bulldozers,
wheel loaders

Components forconstruction
equipment,
crawler type forconstruction
machinery,pins

Overview

Main products

Hydraulic excavators

Number of
employees

-

1,661

951

594

Electricity

MWh32,262

37,915

7,120

Heavy oil,light oil, et
al.

kl

1,277

967

663

thousand
m3

4,180

-

-

LPG, et al.

t

182
(LPG)

256
(LPG)

31
(LPG)

Total energy
consumption

GJ

550,418

428,506

98,159CO2

t-CO2

35,62330,527

5,657

Water consumptiont142,681

79,00050,709Total emissions of waste

t

5,402

4,773

998

June 2000

October 2008

September 2001

Natural gas
Energyconsumption

Date of ISO14001 certificationacquisition

Manufacturing facilities

Overview

BKI

LTK

KIPL

Bangkok Komatsu
Industries Co., Ltd.

L&T-Komatsu
LimitedKomatsu India Pvt.

Location

Chonburi, Thailand

Bangalore, India

Chennai, India

Main products

Forklift trucks,
Castiron parts forconstruction
machineryHydraulic excavators

Dump trucks

Number of
employees-

Electricity

MWhHeavy oil,light oil, etal.
Natural gas
Energyconsumption

350

840

231

25,734

6,595

488

kl

35

79

127

thousand
m3

-

-

-

LPG, et al.

t

262
(LPG)

89
(LPG)

-

Total energy
consumption

GJ

271,115

73,279

9,781

CO2

t-CO2

14,651

6,564

787

Water consumptiont52,64664,32423,009Total emissions of waste

t

6,374

1,223

159

December 2009

June 1999

January 2010

Date of ISO14001 certificationacquisition

Manufacturing facilities

Overview

KSC

KCCM

KCF

Komatsu Shantui
Construction
Machinery Co., Ltd.

Komatsu(Changzhou)
Construction
Machinery Corp.

Komatsu(Changzhou)
Foundry Corp.

Location

Shandong, China

Jiangsu, China

Jiangsu, China

Main products

Wheel loaders,
Hydraulic excavators hydraulic excavators,
motor graders

Iron castings andfoundry molds forconstruction andcasting parts

Number of
employees

-

991

598

291

Electricity

MWh

6,896

7,515

23,005

Heavy oil,light oil, et
al.

kl

85

560

51

thousand
m3

86

-

-

t

15,445(Steam)80(LPG, LNG)

160
(Coal, LPG, LNG)

GJ

140,170

100,734

239,050

t-CO2

7,374

7,598

18,660

Water consumptiont

112,085

45,64087,875

Total emissions of waste

t

734

1,277

6,774

December, 2000

September, 2000

December, 1999

Natural gas
LPG, et al.
Energyconsumption
Total energy
consumption
CO2

Date of ISO14001 certificationacquisition

KSD

KUCC

Komatsu (Shandong)
Construction Machinery Corp.

Komatsu Undercarriage China
Corp.

Location

Shandong, China

Shandong, China

Main products

Mini construction equipment,
forklift trucks,
Crawler type for construction
hydraulic equipment and casting machineryparts

Manufacturing facilities

Overview

Number of
employees-

Electricity

MWhHeavy oil,light oil, etal.
Natural gas
Energyconsumption

683

608

27,14722,195

kl

445

65

thousand
m3

1,253

937

LPG, et al.

t

9,247
(LPG, Steam)-

Total energy
consumption

GJ

378,385

262,128

CO2

t-CO2

26,097

19,580

Water consumptiont154,081

66,997

Total emissions of waste

t

2,596

3,587

December, 2008*

December, 2011

Date of ISO14001 certificationacquisition* Acquisite the certification only
Body Division
1. All data, except the number of employees, were derived from performances of all manufacturing facilities during FY2012.
The number of employees was based on the companies data as of March 31, 2013.
2. Conversion to CO2 and total energy consumption were based on statistical data of each region, country, and that of IEA

for 2012.
3. Total emissions of waste are expressed as a composite of the amount recycled and the amount disposed.

Overview
Year of Establishment

1921

Location

Komatsu, Ishikawa Prefecture

Main Products

Small and medium-sized bulldozers, small hydraulic excavators, small
and medium-sized wheel loaders, motor graders, armored vehicles, etc.

Site/Green Landscape(1,000 m2)

700/90

Number of employees

3,179

Date of ISO14001
certification acquisition

September 1997

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2

Actual value

34,519 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

58,244 MWh

Converted tocalorieequivalents(GJ)
566,196emissions
NOx total amount

13,920 kg

Heavy oil A

2,684 kl

104,928

SOx total amount

3,661 kg

Kerosene

10 kl

353

Total emissions of
waste

1,741 tLight oil

291 kl11,110

Amount recycled

1,740 tTown gas

0 Nkm3

Recycling rate

100 %

LPG

1,333 t

BOD emissions

2,132 kg

Other

1,427

COD emissions

2,207 kg

Total

750,933

66,919739,394 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Sulfur oxides (SOx)

Unit

Facility

Regulatedvalue

Actualvalue

ppm

Boiler

180

85

ppm

Diesel engine

950

700

-

K-value regulation

17.5

3.03

Soot and dust

g/m3N

Boiler

0.3

0.015

g/m3N

Diesel engine

0.1

0.015

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.2

6.4

6.7

160 mg/l

80

3.2

ND

2.0

COD (Chemical Oxygen
Demand)160 mg/l

80

5.7

0.6

2.4

Suspended solids (SS)

200 mg/l

120

2.8

ND

1.3

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

3

ND

ND

ND

Zinc

2 mg/l

2

0.16

ND

0.08

Nitrogen

120 mg/l

120

4.5

3.7

4.2

Phosphorus

16 mg/l

16

0.36

0.04

0.19

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.5

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

pH

Dichloromethane
1,1,1-trichloroethane

0.2 mg/l

0.2

ND

ND

ND

3 mg/l

3

ND

ND

ND

* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Awazu Plant include data for the Komatsu NTC Ltd (KM Division).

Overview
Year of Establishment

2007

Location

Kanazawa, Ishikawa Prefecture

Main Products

Ultra-large hydraulic excavators, large presses, medium presses

Site/Green Landscape(1,000 m2)

134/29Number of employees

777

Date of ISO14001
certification acquisition

May 2007* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

2,975 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

7,665 MWh

Converted tocalorieequivalents(GJ)
74,529

NOx total amount- kg

Heavy oil A

0 kl

0

SOx total amount

0 kg

Kerosene

0 kl

0Total emissions of
waste

341 t

Light oil

2 kl

58

Amount recycled

341 t

Town gas

0 Nkm30

Recycling rate

100 %

LPG

9t

460

BOD emissions

137 kg

Other

0

COD emissions

852 kgTotal

75,046

69,174 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item

Unit

Nitrogen oxides (NOx)

Sulfur oxides (SOx)
Soot and dust

Facility

Regulatedvalue

Actual
value

N/A

-

-

N/A

-

-

-

Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.0-9.0

7.8

6.7

7.2

160 mg/l

80

2.0

ND

1.5

COD (Chemical Oxygen
Demand)160 mg/l

80

22.0

1.3

7.1

Suspended solids (SS)

200 mg/l

120

4.0

ND

2.4

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

3

ND

ND

ND

Zinc

2 mg/l

2

ND

ND

ND

Nitrogen

120 mg/l

120

31.0

ND

11.3

Phosphorus

16 mg/l

16

4.2

0.008

1.52

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.5

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

Dichloromethane

0.2 mg/l

0.2

ND

ND

ND

pH

1,1,1-trichloroethane

3 mg/l3

ND* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Kanazawa Plant include data for the Kanazawa Dai-ichi, Dai-ni and the Kawakita Plant.

ND

ND

Overview
Year of Establishment

1952

Location

Hirakata, Osaka Prefecture

Main Products

Large bulldozers, medium-sized and large hydraulic excavators, mobile
crushers / recyclers / tub grinders (crushers, soil stabilizers, tub
grinders, etc.)

Site/Green Landscape(1,000 m2)

591/88

Number of employees

2,856

Date of ISO14001
certification acquisition

July 1997* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the the end of March 2013.

Major Performance
Environmental impact

Item

Actual value

Energy consumption

Item

Actualconsumption

Converted tocalorieequivalents(GJ)

Total CO2
emissions

30,024 t-CO2

Electricity

52,169 MWh

506,830

NOx total amount

3,525 kg

Heavy oil A

159 kl6,209

SOx total amount

238 kg

Kerosene

13 kl

462

Total emissions of
waste

1,575 tLight oil

302 kl11,521

Amount recycled

1,570 tTown gas

4,230 Nkm3

177,216

Recycling rate

99.7 %

LPG

76 t

3,830

BOD emissions

328 kg

Other

1,342

COD emissions

727 kgTotal

707,411

156,574 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit

Facility

Regulatedvalue

Actualvalue

ppm

Boiler

150

38

ppm

Metal
furnace

180

46

ppm

Paint
dryingfurnace

230

3

ppm

Gas
engineSulfur oxides (SOx)-Regulationof totalemissions(m3N/h)1.573

Soot and dust

g/m3N

Boiler

0.05

0.014

g/m3N

Metal
furnace

0.1

0.015

g/m3N

Paint
dryingfurnace

0.1

0.007

600

67

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.8

7.3

7.5

160 mg/l

25

3.7

ND

2.1

COD (Chemical Oxygen
Demand)160 mg/l

25

6.7

3.1

4.6

Suspended solids (SS)

200 mg/l

90

5.0

ND

2.7

Mineral oils

5 mg/l

3

ND

ND

ND

Copper

3 mg/l

5

ND

ND

ND

Zinc

2 mg/l

2

ND

ND

ND

Nitrogen

120 mg/l

120

8.4

2.4

5.0

Phosphorus

16 mg/l

16

1.9

0.1

0.8

pH

Cadmium

0.1 mg/l

0.01

ND

ND

ND

Lead

0.1 mg/l

0.05

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.05

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.03

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.01

ND

ND

ND

Dichloromethane

0.2 mg/l

0.02

ND

ND

ND

3 mg/l

1

ND

ND

ND

1,1,1-trichloroethane* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Osaka Plant include data for the Rokko Plant.

Overview
Year of Establishment

2007

Location

Hitachinaka, Ibaraki Prefecture

Main Products

Large wheel loaders, dump trucks

Site/Green Landscape(1,000 m2)

264/57

Number of employees

865

Date of ISO14001
certification acquisition

May 2007* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

3,172 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

7,188 MWh

Converted tocalorieequivalents(GJ)
70,275

NOx total amount- kg

Heavy oil A

0 kl

0

SOx total amount

2 kg

Kerosene

6 kl

228

Total emissions of
waste

307 t

Light oil

115 kl

4,393

Amount recycled

307 t

Town gas

0 Nkm30

Recycling rate

100 %

LPG

32 t

1,583

BOD emissions

3,468 kg

Other

0

COD emissions

- kg

Total

76,47922,327 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item

Unit

Nitrogen oxides (NOx)

Sulfur oxides (SOx)
Soot and dust

Facility

Regulatedvalue

Actual
value

N/A

-

-

N/A

-

-

-

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5-9

8.9

6.8

8.2

160 mg/l

600

360

84.0

155

COD (Chemical Oxygen
Demand)160 mg/l

-

-

-

-

Suspended solids (SS)

200 mg/l

600

470

12.0

176

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

-

-

-

-

Zinc

2 mg/l----Nitrogen

120 mg/l

-

-

-

-

Phosphorus

16 mg/l

-

-

-

-

Cadmium

0.1 mg/l

-

-

-

-

Lead

0.1 mg/l

-

-

-

-

Chromium (VI)

0.5 mg/l

-

-

-

-

Trichloroethylene

0.3 mg/l

-

-

-

-

Tetrachloroethylene

0.1 mg/l

-

-

-

-

Dichloromethane

0.2 mg/l

-

-

-

-

pH

1,1,1-trichloroethane

3 mg/l--* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

--

Overview
Year of Establishment

1962

Location

Oyama, Tochigi Prefecture

Main Products

Engines for construction/industrial machinery, diesel generators,
hydraulic equipment, axle, excimer lasers, etc.

Site/Green Landscape (1,000
m2)

570/118

Number of employees

3,327

Date of ISO14001
certification acquisition

May 1997* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2

Actual value

51,250 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

74,722 MWh

Converted tocalorieequivalents(GJ)
726,904

emissions
NOx total amount39,464 kg

Heavy oil A

166 kl

6,479

SOx total amount

208 kg

Kerosene

2,475 kl

90,821

Total emissions of
waste

1,716 tLight oil

3,429 kl

130,999

Amount recycled

1,713 tTown gas

3,388 Nkm3

141,952

Recycling rate

99.9 %

LPG

41 t

2,038

BOD emissions

4,271 kg

Other

1,484

COD emissions

6,973 kg

Total

1,100,679

568,800 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Sulfur oxides (SOx)

Unit

Facility

Regulatedvalue

Actualvalue

ppm

Diesel engine

950

777

ppm

Gas turbine

70

14

-

K-value regulation

7.0

0.65

Soot and dust

g/m3N

Diesel engine

0.1

0.029

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

8.4

7.0

7.4

160 mg/l

25

12.5

2.4

7.5

COD (Chemical Oxygen
Demand)160 mg/l

25

17.7

6.2

12.3

Suspended solids (SS)

200 mg/l

50

36.4

1.0

14.0

Mineral oils

5 mg/l

5

1.0

ND

0.6

Copper

3 mg/l

3

ND

ND

ND

Zinc

2 mg/l

2

0.09

ND

0.06

Nitrogen

120 mg/l

20

9.7

2.5

5.2

Phosphorus

16 mg/l

2

0.5

0.1

0.3

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.1

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

pH

Dichloromethane
1,1,1-trichloroethane

0.2 mg/l

-

-

-

-

3 mg/l

3

ND

ND

ND

* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Oyama Plant include data for the Komatsu Cummins Engine Co., Ltd., the Industrial Power Alliance Ltd., and
the GIGAPHOTON, Inc..

Overview
Year of Establishment

1995

Location

Koriyama, Fukushima Prefecture

Main Products

Hydraulic cylinders, swivel joints, gear pumps

Site/Green Landscape(1,000 m2)

297/93

Number of employees

442

Date of ISO14001
certification acquisition

July 2002* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

8,918 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

9,137 MWh

Converted tocalorieequivalents(GJ)
88,216

NOx total amount46,838 kg

Heavy oil A

1,544 kl

60,370

SOx total amount

1,786 kg

Kerosene

0 kl

0Total emissions of
waste

1,002 tLight oil

0 kl

0Amount recycled

1,002 tTown gas

0 Nkm30

Recycling rate

100 %

LPG

408 t

20,498BOD emissions

106 kg

Other

0

COD emissions

150 kgTotal

169,085

15,229 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item

Unit

Facility

Regulatedvalue

Actualvalue

Nitrogen oxides (NOx)ppm

Cogeneration engine

760

660

Sulfur oxides (SOx)-

K-value regulation

11.5

0.67

Soot and dust

g/m3N

Baking (electric)
furnace

0.2

Less
than

0.003g/m3N

Cogeneration engine

0.2

0.058

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.4

6.9

7.2

160 mg/l

40

20

ND

7.0

COD (Chemical Oxygen
Demand)160 mg/l

40

14

5.1

9.8

Suspended solids (SS)

200 mg/l

70

6.6

2.6

4.1

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

3

ND

ND

-

Zinc

2 mg/l

2

0.06

0.06

-

Nitrogen

120 mg/l

120

12.0

12.0

-

Phosphorus

16 mg/l

16

2.5

2.5

-

Cadmium

0.1 mg/l

0.1

ND

ND

-

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.1

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

-

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

-

pH

Dichloromethane
1,1,1-trichloroethane

0.2 mg/l

0.2

ND

ND

-

3 mg/l

3

ND

ND

-

* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

Overview
Year of Establishment

1966

Location

Hiratsuka, Kanagawa Prefecture

Main Products

Control equipment for construction and mining equipment, hybrid
components. Thermoelectric modules, temperature control equipment,
etc.

Site/Green Landscape(1,000 m2)

69/15

Number of employees

1,067

Date of ISO14001
certification acquisition

March 2000

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Actual value

Energy consumption

Item

Actualconsumption

Converted tocalorieequivalents(GJ)

Total CO2
emissions

2,839 t-CO2

Electricity

7,295 MWh

72,735

NOx total amount- kg

Heavy oil A

0 kl

0

SOx total amount

0 kg

Kerosene

0 kl

0Total emissions of
waste

147 t

Light oil

0 kl

0Amount recycled

147 t

Town gas

19 Nkm3

781

Recycling rate

100 %

LPG

0t

0

BOD emissions

5,473 kg

Other

0

COD emissions

- kg

Total

73,51635,626 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item

Unit

Nitrogen oxides (NOx)

Sulfur oxides (SOx)Facility
N/A-

Regulatedvalue

Actualvalue--

Soot and dust

N/A

-

-

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5-9

8.2

6.1

7.2

160 mg/l

600

230

1

94.0

COD (Chemical Oxygen
Demand)160 mg/l

-

-

-

-

Suspended solids (SS)

200 mg/l

600

230

ND

43.0

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

3

ND

ND

ND

Zinc

2 mg/l

2

0.03

ND

0.025

Nitrogen

120 mg/l

-

-

-

-

Phosphorus

16 mg/l

-

-

-

-

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.5

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

pH

Dichloromethane
1,1,1-trichloroethane

0.2 mg/l

0.2

ND

ND

ND

3 mg/l

3

ND

ND

ND

* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Shonan Plant include data for KELK Ltd.

Overview
Year of Establishment

1968

Location

Oyama, Tochigi Prefecture

Main Products

Forklift trucks, mini excavators, mini wheel loaders

Site/Green Landscape(1,000 m2)

235/28

Number of employees

1,052

Date of ISO14001
certification acquisition

February 1998

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

4,270 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

6,169 MWh

Converted tocalorieequivalents(GJ)
60,017

NOx total amount

1,763 kg

Heavy oil A

578 kl

22,611

SOx total amount

1,261 kg

Kerosene

0 kl

0Total emissions of
waste

484 t

Light oil

22 kl

830

Amount recycled

484 t

Town gas

0 Nkm30

Recycling rate

100 %

LPG

84 t

4,194

BOD emissions

461 kg

Other

400

COD emissions

480 kgTotal

88,052

83,636 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item

Unit

Facility

Nitrogen oxides (NOx)ppm

Small boilers

Sulfur oxides (SOx)-

Soot and dust

g/m3N

Regulatedvalue

Actual
value

(260)

82

K-value regulation

7.0

0.27

Small boilers

(0.5)

0.004

* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.3

7.0

7.2

160 mg/l

25

13.0

1.9

5.5

COD (Chemical Oxygen
Demand)160 mg/l

25

8.5

2.8

5.7

Suspended solids (SS)

200 mg/l

50

7.6

3.6

5.8

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

3

ND

ND

ND

Zinc

2 mg/l

2

0.25

ND

0.08

Nitrogen

120 mg/l

20

5.9

4.1

5.0

Phosphorus

16 mg/l

2

0.8

0.6

0.7

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.1

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

Dichloromethane

0.2 mg/l

0.2

ND

ND

ND

pH

1,1,1-trichloroethane

3 mg/l3

ND* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

ND

ND

Overview
Year of Establishment

1985

Location

Hiratsuka, Kanagawa Prefecture

Main Products

R&D on business fields of the Komatsu Group

Site/Green Landscape(1,000 m2)

195/124

Number of employees

161

Date of ISO14001
certification acquisition

May 2008* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

1,396 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

2,771 MWh

Converted tocalorieequivalents(GJ)
26,847

NOx total amount421 kgHeavy oil A

2 kl

90

SOx total amount

4 kg

Kerosene

117 kl4,310

Total emissions of
waste

159 t

Light oil

3 kl

98

Amount recycled

159 t

Town gas

0 Nkm30

Recycling rate

99.7 %

LPG

9t

440

BOD emissions

9 kg

Other

13

COD emissions

20 kg

Total

31,7984,490 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit

Facility

Regulatedvalue

Actualvalue

ppm

Service generator

303

90

ppm

Cold/hot water
generator

390

37

ppm
ppm
Sulfur oxides (SOx)-

K-value regulation

11.5

0.9

Soot and dust

g/m3N

Service generator

0.1

0.017

Cold/hot water
generator

g/m3N

0.2

0.006

g/m3N
g/m3N
* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.4

7.0

7.3

160 mg/l

10

2.0

1.0

1.5

COD (Chemical Oxygen
Demand)160 mg/l

25

8.0

2.0

4.7

Suspended solids (SS)

200 mg/l

65

5.0

1.0

2.2

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

1

ND

ND

ND

Zinc

2 mg/l

1

ND

ND

ND

Nitrogen

120 mg/l

-

-

-

-

Phosphorus

16 mg/l

-

-

-

-

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

Chromium (VI)

0.5 mg/l

0.5

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

pH

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

Dichloromethane

0.2 mg/l

0.2

ND

ND

ND

3 mg/l

3

ND

ND

ND

1,1,1-trichloroethane* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

Overview
Year of Establishment

1952

Location

Himi, Toyama Prefecture

Main Products

Iron castings, steel castings, molds for casting, etc.

Site/Green Landscape(1,000 m2)

433/104

Number of employees

1,032

Date of ISO14001
certification acquisition

January 2000

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

60,136 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

113,750 MWh

Converted tocalorieequivalents(GJ)
1,108,126

NOx total amount

4,078 kg

Heavy oil A

1,840 kl

71,939SOx total amount

1,555 kg

Kerosene

1,118 kl

41,030Total emissions of
waste

6,511 tLight oil

261 kl

9,979

Amount recycled

6,496 tTown gas

0 Nkm30

Recycling rate

100 %

LPG

2,665 t133,768

BOD emissions

3,613 kg

Other

134

COD emissions

4,773 kg

Total

1,364,976

Wastewater

1,107,737 m3* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit

Facility

Regulatedvalue

Actualvalue

ppm

Annealing furnace

200

85

ppm

Annealing furnace(small)

180

25

ppm

Calciners

220

Less than7

K-value regulation

17.5

3.46

ppm
Sulfur oxides (SOx)-Soot and dust

g/m3N

Annealing furnace

0.25

0.01 or
less

g/m3N

Annealing furnace(small)0.2

0.01 or
less

g/m3N

Calciners

0.15

0.02

g/m3N

Arch furnace

0.1

0.01 orless* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

8.6

7.0

7.7

160 mg/l

25

6.7

0.5

2.8

COD (Chemical Oxygen
Demand)160 mg/l

160

5.4

1.5

3.7

Suspended solids (SS)

200 mg/l

90

23.0

ND

5.9

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

1

ND

ND

ND

Zinc

2 mg/l

2

0.3

ND

0.23

Nitrogen

120 mg/l

120

7.8

2.5

4.1

Phosphorus

16 mg/l

16

1.5

0.06

0.45

Cadmium

0.1 mg/l

0.1

ND

ND

ND

Lead

0.1 mg/l

0.1

ND

ND

ND

pH

Chromium (VI)

0.5 mg/l

0.5

ND

ND

ND

Trichloroethylene

0.3 mg/l

0.3

ND

ND

ND

Tetrachloroethylene

0.1 mg/l

0.1

ND

ND

ND

Dichloromethane

0.2 mg/l

0.2

ND

ND

ND

3 mg/l

3

ND

ND

ND

1,1,1-trichloroethane* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

Overview
Year of Establishment

1945

Location

Nanto, Toyama Prefecture

Main Products

Machine tools, laser process machines, wire saws

Site/Green Landscape(1,000 m2)

188/28

Number of employees

1,101Date of ISO14001
certification acquisition

June 1999* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

8,103 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

20,597 MWh

Converted tocalorieequivalents(GJ)
201,740

NOx total amount- kg

Heavy oil A

0 kl

0

SOx total amount

0 kg

Kerosene

0 kl

18

Total emissions of
waste

1,621 tLight oil

21 kl

806

Amount recycled

1,488 tTown gas

0 Nkm30

Recycling rate

92.1 %

LPG

46 t

2,303

BOD emissions

824 kg

Other

0

COD emissions

- kg

Total

204,867

998,560 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit
ppm

Facility

Regulatedvalue

Actual
value

N/A

-

-

N/A

-

-

ppm
ppm
ppm
Sulfur oxides (SOx)-

Soot and dust

g/m3N

g/m3N
g/m3N* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.5

6.3

6.8

160 mg/l

160

1.3

ND

0.8

COD (Chemical Oxygen
Demand)160 mg/l

-

-

-

-

Suspended solids (SS)

200 mg/l

200

8.0

ND

2.0

Mineral oils

5 mg/l

5

ND

ND

ND

Copper

3 mg/l

-

-

-

-

Zinc

2 mg/l----Nitrogen

120 mg/l

-

-

-

-

Phosphorus

16 mg/l

-

-

-

-

Cadmium

0.1 mg/l

-

-

-

-

Lead

0.1 mg/l

-

-

-

-

Chromium (VI)

0.5 mg/l

-

-

-

-

Trichloroethylene

0.3 mg/l

-

-

-

-

Tetrachloroethylene

0.1 mg/l

-

-

-

-

Dichloromethane

0.2 mg/l

-

-

-

-

pH

1,1,1-trichloroethane

3 mg/l--* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for Komatsu NTC Ltd. include data for the Toyama plant and the Fukuno Plant.

--Overview
Year of Establishment

1918

Location

Ryuou-cho, Gamou, Shiga Prefecture

Main Products

Cabs for construction equipment

Site/Green Landscape(1,000 m2)

42/9

Number of employees

357

Date of ISO14001
certification acquisition

December 2007

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

3,254 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

6,356 MWh

Converted tocalorieequivalents(GJ)
62,116

NOx total amount- kg

Heavy oil A

0 kl

0

SOx total amount

4 kg

Kerosene

11 kl

418

Total emissions of
waste

342 t

Light oil

36 kl

1,387

Amount recycled

274 t

Town gas

0 Nkm30

Recycling rate

98.6 %

LPG

230 t

11,536

BOD emissions

205 kg

Other

0

COD emissions

344 kgTotal

75,457

98,250 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate
amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit
ppm

Facility

Regulatedvalue

Actual
value

N/A

-

-

N/A

-

-

ppm
ppm
ppm
Sulfur oxides (SOx)-

Soot and dust

g/m3N

g/m3N
g/m3N* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater
Regulatedvalue
according to
the Water
Pollution
Control Law

Regulatedvalue

5.8-8.6

BOD (Biochemical
oxygen demand)

Item

Actual value

Maximum

Minimum

Average

5.8-8.6

7.5

7.0

7.2

160 mg/l

20

5.0

ND

2.1

COD (Chemical Oxygen
Demand)160 mg/l

20

8.6

0.8

3.5

Suspended solids (SS)

200 mg/l

20

6.0

0.6

2.6

Mineral oils

5 mg/l----Copper

3 mg/l

0.1

0.02

ND

0.01

Zinc

2 mg/l

0.5

0.11

ND

0.05

Nitrogen

120 mg/l

8

3.0

ND

1.5

Phosphorus

16 mg/l

0.6

ND

ND

ND

Cadmium

0.1 mg/l

-

-

-

-

Lead

0.1 mg/l

0.03

ND

ND

ND

Chromium (VI)

0.5 mg/l

-

-

-

-

Trichloroethylene

0.3 mg/l

-

-

-

-

Tetrachloroethylene

0.1 mg/l

-

-

-

-

Dichloromethane

0.2 mg/l

-

-

-

-

pH

1,1,1-trichloroethane

3 mg/l--* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.

--

Overview
Year of Establishment

1971

Location

Shinshiro, Aichi Prefecture

Main Products

Prefabricated structures for businesses

Site/Green Landscape(1,000 m2)

31/1

Number of employees

48

Date of ISO14001
certificationacquisition

March 2002

* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Energy consumption

Actual value

1,222 t-CO2

Item

Electricity

Actualconsumption

Converted tocalorieequivalents(GJ)

949 MWh

9,460

NOx total amount

297 kgHeavy oil A

102 kl3,988

SOx total amount

178 kg

Kerosene

0 kl

0Total emissions of
waste

79 t

Light oil

13 kl

481

Town gas

0 Nkm3

0

183 t

9,180

Amount recycled

79 t

Recycling rate

100 %

LPG

BOD emissions

138 kg

Other

0

COD emissions

245 kgTotal

23,109

9,316 m3

Wastewater* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to
calculate amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations
Air
Item
Nitrogen oxides (NOx)

Unit
ppm

Facility

Regulatedvalue

Actualvalue

Boiler

250

55

ppm
ppm
ppm
Sulfur oxides (SOx)-

K-value regulation

17.5

0.59

Soot and dust

g/m3N

Boiler

0.3

0.002

g/m3N
g/m3N
g/m3N
* Regulated values are in accordance with the Air Pollution Control Law and local regulations.

Wastewater

Regulatedvalue

Actual valueaccording to
the Water
Pollution
Control Law

Regulatedvalue

Maximum

Minimum

Average

5.8-8.6

5.8-8.6

7.2

6.3

6.7

BOD (Biochemical
oxygen demand)

160 mg/l

160

37.0

3.7

14.8

COD (Chemical Oxygen
Demand)160 mg/l

160

86.0

11.0

26.3

Suspended solids (SS)

200 mg/l

200

26.0

1.0

4.9

Mineral oils

5 mg/l

5

1.0

ND

1.0

Copper

3 mg/l

-

-

-

-

Zinc

2 mg/l----Nitrogen

120 mg/l

120

*130

9.7

27.5

Phosphorus

16 mg/l

16

14.0

0.7

2.7

Cadmium

0.1 mg/l

-

-

-

-

Lead

0.1 mg/l

-

-

-

-

Chromium (VI)

0.5 mg/l

-

-

-

-

Trichloroethylene

0.3 mg/l

-

-

-

-

Tetrachloroethylene

0.1 mg/l

-

-

-

-

Dichloromethane

0.2 mg/l

-

-

-

-

3 mg/l

-

-

-

-

Item

pH

1,1,1-trichloroethane* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Although the restriction value was exceeded temporarily, it is comfirmed about having returned to the stationary state(10-20) by check and cleaning of the processing tub.

Overview
Year of Establishment

March 1967

Location

Sagamihara, Kanagawa Prefecture (Head office)Main Products

Sales and service for construction machinery

Number of business
sites

107

Number of employees

1,883

Date of ISO14001
certification acquisition-* The number of business sites and employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

4,516 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

8,170 MWh

Converted tocalorieequivalents(GJ)
81,455

Total emissions ofwaste

3,613 tHeavy oil A

62 kl

2,409

Amount recycled

2,958 tKerosene

392 kl

14,379Recycling rate

81.9 %

Light oil

42 kl

1,601

LPG

22 t

1,094

Town gas
Total

1,119
102,057* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Overview
Year of Establishment

October 2010

Location

Yokohama, Kanagawa Prefecture (Head office)Main Products

Rentals for construction machinery, engineering works construction
machine apparatuses, and vehicles

Number of business sites

143

Number of employees

944

Date of ISO14001 certificationacquisition-* The number of business sites and employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

2,163 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

4,303 MWh

Converted tocalorieequivalents(GJ)
42,899

Total emissions ofwaste

3,202 tHeavy oil A

0 kl

0

Amount recycled

2,178 tKerosene

92 kl

3,362

Recycling rate

68.0 %

Light oil

92 kl

3,526

8t

397

LPG
Town gas
Total

450,187* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Overview
Year of Establishment

January 1973

Location

Shinagawa, Tokyo metropolitan (Head office)Main Products

Sales and service for forklift

Number of business
sites

138

Number of employees

1,751

Date of ISO14001
certification acquisition-* The number of business sites and employees as of the end of March 2013.

Major Performance
Environmental impact

Item

Total CO2
emissions

Actual value

2,831 t-CO2

Energy consumption

Item

Electricity

Actualconsumption

5,530 MWh

Converted tocalorieequivalents(GJ)
55,135

Total emissions of
waste

4,534 tHeavy oil A

0 kl

0

Amount recycled

4,102 tKerosene

207 kl7,601

Recycling rate

90.5 %

Light oil

5 kl

172

LPG

55 t

2,756

Town gas
Total

260
65,924* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amountdisposed.
Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including
valuables).
* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting
Manual, which is based on the act on Promotion of Global Warming Countermeasures.