The “Q’d Building,” a simple and sturdy
office design that harmoniously connects
people, building, and environment

Head office building

Atrium of head office building

The Tokyo Enesys head office building employs leading-edge environmental
technologies to achieve 40% less CO₂ emissions than a comparable
conventional building. Solar shade louvers fitted to the building exterior can
prevent direct sunlight from entering throughout the year. At the same time,heat loads can be reduced by taking in natural light. There is also a naturalventilation system that circulates air from outdoor air intakes on each floor
through the building’s atrium. These and other design features make thebuilding highly environment-friendly and energy-efficient.

CO₂

1-3-1 Nihonbashi Kayabacho, Chuo-ku, Tokyo, 103-0025 Japan
Phone +81 3-6371-1947 Fax +81 3-3669-0920
https://www.qtes.co.jp/en/

OS2303-0000

H₂

H₂

Building a More Reliable Foundation for Living

ENERGY × SYSTEM
Shaping Communities, Society,and the Future
As a comprehensive engineering company,
Tokyo Energy & Systems (Tokyo Enesys) is committed tosupporting the foundations of living and industry,
and creating and developing diverse business models
CO₂

to address the challenges facing communities and society,with the goal helping to shape a more sustainable world.

History of Tokyo Enesys

H₂

For more than 75 years since its establishment, Tokyo Enesys has worked unswervingly tomeet the need for public energy infrastructure, by constructing and maintaining hydroelectric,
thermal, and nuclear power plants, and power substations.

Moving forward toNEXT STAGE

011947 to 1950 s

1960 s to 1970 s

1980 s to 1990 s

2000 s to 2010 s

2020 sIn 1947 Tokyo Enesys began
constructing hydropower andsubstation facilities under the nameTokyo Denki Komusho, initially as partof restoration projects in various areas.

Adapting to changes in energy
supply structure, we began
constructing and maintaining
thermal and nuclear power plants.

We expanded into theconstruction of cogeneration
plants andtelecommunications facilities.

We entered the renewable energy
business, including the provision of
EPC (engineering, procurement, andconstruction) and O&M services.

We began undertaking full-scale
O&M and power generation projects,
working together with local
communities to uncover resources
and address local challenges.

As a comprehensive
engineering company,
we are ever ready to take on
new challenges.

02

Business Fields

Our BusinessFor over 75 years, we have engaged in a wide range of business fields and operations, responding to many

VISIONTokyo Enesys pursues its business activities to fulfill its mission to support the safe,changes in energy supply structure and social conditions.

secure supply of energy and systems, for “building a more reliable foundation for living.”

Leveraging all the on-site technical expertise and wide-ranging capacity for adaptation that we have cultivatedOn top of these core businesses, in recent years we have expanded and strengthened ourvalue chains, business positioning, and business areas. In addition, as we diversify ourbusiness model further, we are now striving to improve our group organizational capacity,and to develop innovative technologies and solutions.

Business model
diversification
Improved grouporganizational capacity

Technology andsolutions development

Value
chainsBusiness
positioning

Businessareas
Expansion andstrengthening

Infrastructure business

Integrated construction of all
kinds of power facilities, fromdesign to construction
and maintenance

Basic philosophy“Qʼd” expresses our absolutecommitment to being “Quality
Oriented.” “Qʼd” also symbolizes
our pledge to oﬀer superior
solutions, both for the beneﬁt of
our clients, and society as a whole.
03

Building a morereliable foundation
for livingin these businesses, we are now making green energy a key pillar of our business portfolio. In this way, we cando our part to help shape a more sustainable society.
As a comprehensive engineering company, we will go on refining our capabilities across the board, to help
people live more prosperous lives.

Green energy

Thermal power

We propose the use of renewableenergy resources that takeadvantage of local
characteristics and contribute toaddressing local challenges andpromoting local development.

We support the reliable operationof thermal power facilities,
making use of the latest
technologies including
high-efficiency, high-capacity
combined-cycle power
generation systems.

Nuclear power

Hydroelectric power

We contribute to the safe, secure
operation of nuclear power
plants, including the applicationof rigorous measures to counterthe risks of earthquakes andtsunamis.

Through the design andconstruction of micro hydroturbines and other technologies,
we are actively adapting to thechanging power generation
method.

Substations

O&M businessAs well as managing substation
facility design and construction,
we offer protection and control
technology for substationequipment, and comprehensive
testing technology.

We offer a range of operation andmaintenance services to meetthe diverse needs of our clients.

Energy solutions

Telecommunications

We propose and install all kindsof equipment and systems tomeet the specific energy-related
needs of clients.

We support the development oftelecommunications andbroadcasting through theconstruction of CATV systems forcable TV providers.

Electrical equipment

Overseas ventures

We offer a streamlined set ofelectrical system construction
services for educational andpublic facilities, from design toconstruction.

To keep pace with growing
demand, we handle theconstruction design andsupervision of energy systems invarious overseas countries.

Welding andinspection center

Civil engineeringand building

Our group of welding and quality
control experts can reliably meeteven the most exacting
requirements.

In addition to survey, design,
construction, and maintenance ofpower plants and other facilities,
we handle general civilengineering and building
construction projects.

04Bussiness introduction

Green Energy
To help tackle local challenges, we work with local communities to uncoveravailable renewable energy resources and develop new businesses.

Biomass power

In line with the global move to carbon neutrality, we are making green energy a key focal point of our business.
We collaborate with local communities to help them tackle local challenges,
always striving to ensure that we offer them viable solutions that serve their real needs.

Commercial operation of this plant in Sakaiminato City, Tottori
Prefecture started in October 2022. Tokyo Enesys is engaged
in every aspect of this large-scale power generation project.
We are also utilizing the new technological capabilities andknow-how derived from this project to enhance and expand
our more traditional areas of business.

Sakaiminato Biomass Power Plant

Sakaiminato Biomass Power Plant

Green energy business initiatives

Examples of initiatives

We are involved in a variety of biomass power plant construction and fuel supply business.

In each locality, we identify renewable energy resources and examine the challenges involved in harnessing them.
We then plan and develop business ideas that take advantage of the locality’s special characteristics.

Business model for identifying and addressing local challenges
Identify
local challenges

Businessideas

Alliances

Planning &designProject startE(Engineering)P(Procurement)

C(Construction)

Proposals

Business
start

Perspective view of
Aizu Komorebi
Biomass Power Plant

Project
launchO&M

Powergeneration
business

Technical capabilities and knowledge obtained up to now

Concentrating the accumulated capabilities of the group for support

Fuel supply for Sakaiminato
Biomass Power Plant“Prayer for safety” ceremony at
Tahara Biomass Power Plant

Abashiri Biomass Power Plant No. 2

Solar PV and geothermal power generation
Tokyo Enesys is an EPC provider of all services required to develop solar (PV) power plants (including civil engineering andelectrical work).
We also offer EPC services for facilities that combine solar PV generation with storage batteries, involving RE100 commitments,
PPAs, in-house consumption, and microgrids, as well as geothermal (binary) power plants that utilize hot-spring water, a heatsource that is stable throughout the year and unaffected by weather conditions.

Achievements

Fully harnessing the group’s management resources for the finance, insurance,leasing, and land acquisition needed for business development

Since 2013, throughout Japan, we have constructed projects with a combined renewable power generation capacity of around
200 MW.

Business development diagram
Tokyo Enesys proposes solar PV, wind, microhydro, geothermal, and biomass projects, aswell as PPA (power purchase agreement)
projects (both on-site and off-site), andcombined local energy projects utilizing
Off-site PPA
multiple kinds of renewable energy
sources with “local production
for local consumption”
On-site PPA
provisions for local
energy security.

34MW in Ibaraki

Geothermal binary power plant

Micro hydro power plant

30MW in Fukushima

99kW in Kumamoto Geothermal（Provided by
BASELOAD POWER JAPAN）

Biomass power plant(domestic wood chips)

50kW in Gifu Geothermal

Abashiri
Biomass Power Plant

Development of renewable energy projects
Thermal power plant
Biogas power plant

Biomass power plant
Fuel sales business

Combined local energy projects(e.g., solar power+storage batteries)

05

Aside from the Sakaiminato Biomass
Power Plant, we have a strong trackrecord of involvement in a wide varietyof renewable energy facilities around
Japan, e.g., as an investor and EPC
provider for the Aizu Komorebi Biomass
Power Plant, and as an investor, O&M
provider, and technical adviser for the
Chofu Biomass Power Plant.

Sakaiminato Biomass Power Plant
Chofu Biomass Power Plant
Aizu Komorebi
Biomass Power Plant●Hydroelectric power

Tahara Biomass Power Plant●Photovoltaic power

Tahara Green Biomass
Power Plant●Biomass power● Geothermal power●HydrogenHyuga Biomass Power Plant

06

Bussiness introduction

Thermal Power

Nuclear Power

Comprehensive support for stable operation ofthermal power generation facilities.
Support for the latest technologies.

Pursuing optimal technology andhigh quality to ensure the safe,
reliable operation of nuclear facilities.

In the field of thermal power generation, Tokyo Enesys mainly engages in theconstruction of new plants, as well as plant modification and maintenance. We leverage
our long experience and wealth of know-how to help ensure the stable operation ofnumerous thermal power plants. At the same time, we make use of high-efficiency,
high-capacity combined cycle power generation, and other advanced technologies.
Our great strength is our ability to deliver a complete package of construction services,
centered on design, procurement, construction, and inspection.

Tokyo Enesys has been involved in the construction, maintenance, andinspection of nuclear power plants and spent nuclear fuel reprocessing plants
for many years. Combining all the technology and knowledge we have acquiredin this time with our original construction methods and technologicalinnovations allows us to offer a wide range of unique services for nuclear power
facilities, from the construction of equipment piping to the planning, design,and construction of electrical and instrumentation systems.

Our Business

Our BusinessIn addition to ensuring high levels of safety, we also address demands to cut costs, which have grown more urgent in recent years.

We are involved in every step of the construction process, from planning, design, procurement, and construction,
to maintenance, including nondestructive testing and equipment diagnosis.

01 Planning and design

02

Our expert professionals
conduct site surveys, study
construction methods, andexplore a variety of design
possibilities.

We procure all the
products, equipment,
and construction
materials needed forthe project.

Procurement

03 Construction

04 Inspection, testing,

We promise reliable
construction work,
based on our firm beliefin “safety, quality, andlow cost.”

Our qualified and expert
professionals conduct
inspection and testing toensure safe operation.

and diagnosis

01 Planning and design

02 Construction

03 MaintenanceComprehensive planningand design tailored to
specific needs

Installation of heavymachinery, electricalequipment, and piping forplants

Maintenance and inspection basedon technology and know-how
cultivated over many years

Construction plan
(3D drawing)

Inspection of
turbine rotors

Inspection of circulatingwater pump motors

and inspection

Equipment diagnosis andinspection by experts

Thermographic diagnosis ofelectric motors

Achievements

Achievements
We offer a wide array of services from the installation of large-scale power generation plants featuring gas turbines and boiler
facilities to small-scale private power generation systems. By developing high-capacity hoisting systems that enable modular
construction, as well as special tools and new in-furnace scaffolding equipment, we are constantly striving to both shorten
construction times and improve safety. In addition to repairing malfunctions discovered through inspections, we provide
high-quality construction work for all kinds of power plant facilities.

Construction ofa thermal power plant

Nuclear power plant construction

04 Equipment diagnosis

Installing a gas turbine power plant

Installing a boiler ina chemical plant

Installing a diesel generator

Tokyo Enesys has contributed to the revival of the Fukushima region, through construction work that complies with new
regulatory standards for nuclear power plants and decontamination of local areas. We are also addressing the diverse needs ofclients. For example, we are using special technology to conduct inspection and maintenance inside containment vessels, andworking to reduce waste by means of decontamination and waste reduction technology.

Monitoring a decontamination area(radiation dosimetry)

Disassembly, removal, andvolume reduction of
feed water heaters

Underwater work inreactor containment vessels

Fire protection measures based on
new regulatory standards fornuclear power plants

Recent initiatives
Currently, we are conducting construction and seismic evaluation of nuclear facilities for compliance with new regulatory
standards, as well as developing robots for use in plant decommissioning.
We are also developing tools that can be deployed for general industrial applications.
Use of a jack-up system

Multi-point support for ST diaphragm

Boiler furnace internal scaffolding

BACKFLOWPREVENTION

Overhauling a heat exchanger

07

Meter calibration

Repairing a boiler

Inspecting a generator

Model diagram for piping systemnatural vibration analysis

Drain funnel backflow
prevention fittings(technical development)

FLOW

Remote-controlled robot(technical development)

Waterproofing of cable penetration

08

Bussiness introduction

Hydroelectric Power

Substations

Tokyo Enesys is designing and constructing
micro hydro turbines as an appropriate solution totoday’s changing energy needs.

Using our outstanding technical capabilities,
we handle a wide range of substation facilities.
We are also expanding into new fields.

We adapt to the technological innovations that arise from changes in power
generation methods.
Tokyo Enesys is equipped to handle all kinds of hydroelectric power plant
construction projects, from installation and overhaul-inspection of vertical turbine
pump generators, to construction of micro hydro power plants.
We also handle new construction and renewal of general small and medium-sizedhydropower plants, including civil engineering requirements.

Tokyo Enesys engages in the design and construction of substation facilities,
as well as offering protection and control technology for substation equipment
and comprehensive testing technology.
Making best use of our technical capabilities, which are the best in theindustry, we construct ultra-high voltage substations that require high levels oftechnological reliability and expertise. We also aggressively adopt newtechnologies, for example upgrading facilities with new battery systems that
store large quantities of electrical energy.

Our Business

Our BusinessWe offer a comprehensive set of services, from installation and maintenance to inspection,for everything from conventional hydropower systems to state-of-the-art micro hydropower facilities.

We work on substation facilities, which are essential for electric power infrastructure. Using our advanced
technological capabilities, we construct ultra-high voltage substations and NAS battery systems.

New construction, modification, maintenance, and testing of hydropower facilities in Japan

01 New construction and modification●Lifting pump turbines

02 Maintenance and inspection●Precision inspection●Routine inspection●Electric generator motors

testing of equipment, protective
devices, and control panels●Daily maintenance●New installation and modification of small and03 Various tests●Acceptance and combination

medium-sized hydropower plants

Installing generator
rotorsComprehensive technology for substation facilities

01 Foundation work
●Land development●Piling work

●Foundation work

● Outer fence construction

Substation (500 kV)transformer & GIS
Piles (Φ1.5×L25 m, 48 piles)

Precision inspection of inlet valves

02 Installation of

03 Inspection andsubstation equipment●Transformers

maintenance● Circuit breakers● Outdoor steel structures

04 Single device andsystem testing●Precision and routine● Overhead cables and power cables●Equipment

inspection●Protection devices●Daily maintenancePower cables in conduits● Control panels

500 kV transformer

VT & CT circuit tests

Installation, maintenance, and testing of micro hydropower facilities

01 Planning and design

02 Construction, installation,and maintenance

03 Various tests●For electric power companies,

Achievements
We are actively working to expand into new fields, to address the changing needs of today’s world.

government bodies, and otherrelevant organizations

Micro hydro turbine (double type)

Conduit-type single turbine

Installation of NAS battery system

Achievements
Egasaki Micro
Hydro Plant

Morigasaki Water Reclamation
Center Micro Hydro Plant(Yokohama Waterworks Bureau)(Kawasaki City
Waterworks Bureau)(Tokyo Bureau of Sewerage)

Inflow type(penstock diameter 900 A)

Inflow typeOutput 170 kW(penstock diameter 500 A)

09

Extra-high voltage substation

Construction ofhigh-power testing facility

Other business activities

Kawai Waterworks
Micro Hydro Plant

Output: 135 kW×2 units

High-voltage substation

Inflow type
1. Output 110 kW (penstock diameter 1,350 A)
2. Output 110 kW (penstock diameter 1,200 A)
3. Output 9.9 kW (penstock diameter 500 A)

Tokyo Enesys also provides various technologies for protection, control, and comprehensive testing.
We offer total support for substation needs.
●Oil-spill containment technologies●Aluminum covers withblow-prevention brackets●Measurement of buried pipe wall

thickness●Weed control in substation

premises●Thermal insulation coating(CoolTherm)●Attachments for erecting groundrods (Assist)

Repair of oil leaks fromtransformer bushingby chemical sealing10Bussiness introduction

O&M Business

Energy Solutions

We provide operation and maintenance services
for thermal and photovoltaic power plants.

We offer optimal solutions for all kinds ofenergy-related needs.

To cater to the diverse needs of our clients, we utilize the wealth of technologicalexpertise we have accumulated in many different fields since the company wasestablished.
Fully leveraging our key strength of delivering EPC services in a wide range ofenergy-related fields, we offer a streamlined set of services that includes O&M,
in addition to design, procurement, and construction.

The complete liberalization of the electricity and gas markets has stimulated
strong demand for the full utilization of cogeneration facilities (that use theheat generated by electric power generation). To address this demand, Tokyo
Enesys is offering integrated EPC services for cogeneration plants.
We also support distributed energy infrastructure solutions, such as gas engine(with *BCP support) and gas turbine power generation systems.
* A BCP (Business Continuity Plan) is a strategic plan for enabling power consumers tosecure electric power in the event of an emergency.

Our Business
Our Business

Operation services thatprioritize safety andaim at maximizing
capacity utilization

Accurate andefficient facility
maintenanceUsing our professional expertise in the field of energy, we offer solutions optimized forminimizing energy costs or capital investment, according to the client’s needs.

Streamlined solution flow, from diagnosis, design, and construction, to maintenanceOperation work in main control room

On-site patrols using IoT●High-precision operation with only a small number of people●Maintenance using ICT and IoT●Operation in accordance with carefully documented●Precise operation using AR (augmented reality)1

Proposal of energy-efficientsolutions2

Construction of system
to satisfy the plan

Saving energy by renewing
heat source equipment

procedure manuals

Energyefficiency
diagnosis

Recent initiatives
For solar (PV) power generation facilities, we offer a process that enables integrated management of EPC and O&M services as a set.
Along with EPC, for cogeneration facilities we offer monitoring services that enable timely information sharing with clients and rapid
responsiveness. At the Fukushima Natural Gas Power Plant, we are deploying a full-scale O&M service.
Furthermore, we are now planning to extend our O&M services to biomass power plants throughout Japan.

Totalsolutions
Maintenance&management

Expand into EPC and O&M businesses
E(Engineering)①New
business

P(Procurement)

O(Operation)

M(Maintenance)Powergeneration

Biomass power plants (Sakaiminato Energy Power)➡ Toward full-scale power generation business
OE

OE(Owner's
Engineering)②Area ofexpansion

C(Construction)(Owner's
Engineering)

Supplymaterials
and equipment⬇
Manufacturing
at plants
in Thailand

Biomass power plants

Solar (PV) power equipment(in-house power generation system)Powergeneration

Geothermal
power plants
Cogeneration plants(remote monitoring for some customers)
Large-scale thermal power plants for new power companies➡ Toward full-scale operation business③Existingbusinesses

Thermal power, nuclear power, hydro power,
substations, telecommunications, civil engineering*①New business field,Power generation business ②Areas in which we can utilize our experience and knowledge as a power plant construction business③Businesses pursued since the company’s beginning, areas that serve as a continuing foundation

11

Design&construction

4

Energysaving
verification

Maintenance and support
after improvements

3

Rigorous verification of
improvements

Replacement of aging absorption chillers
with high-efficiency heat pump chillers

Achievements
A variety ofenergy-related services● Cogeneration plants (plan,

procurement, construction,
maintenance)● Construction and renewal of

substations●Inspection and maintenance ofgeneral power generationequipment

Energy-saving
upgrades of heatsource equipment●Air conditioning equipment in

office buildings●Exhaust heat recovery

facilities for factories● Support in applying for

subsidies for the above kindsof projects
12Bussiness introduction

Telecommunications

Electrical Equipment

We contribute to the development of
the telecommunications and broadcasting business,by constantly adapting our technology to
the times in pursuit of cost savings.
Tokyo Enesys offers a complete range of construction services to cable TV providers,covering in-home installations, transmission lines, and TV station buildings.
We can respond flexibly to different needs, including construction of new 4K and 8K
systems and modification of existing facilities to adapt to the removal of roadsideutility poles.

We offer a complete range of services forthe construction of electrical facilities, making
use of our wealth of experience and know-how.
We undertake a comprehensive range of electrical facility construction
projects, both for everyday familiar facilities and industrial facilities, always
striving to make them more convenient and comfortable. We accommodate awide range of contemporary needs, including community facilities, educational
facilities, apartment complexes, and Japanese-style buildings that preserve
the traditional beauty of Japanese culture.

Our Business

Our Business

Through our support for the telecommunications and broadcasting businesses,
we support society by “building a more reliable foundation for living.”

We offer comprehensive coordination of familiar facilities, proposing optimal quality based on more reliable technology.

Construction of electrical facilities
for educational facilities
Cable TV
construction

Tokyo Enesys serves as a comprehensive coordinator
for the planning and construction of the receiving
points, headends, and transmission line systems needed
for the current convergence of broadcasting andtelecommunications infrastructure. We also work on
upgrading existing facilities and offer a 24-hour
maintenance service for the facilities of clients.

FTTH
construction

We provide technology for building communication
networks through the installation of fiber-to-the-home(FTTH) optical fiber lines.

Achievements

Other business activities

We have constructed a variety of telecommunications
infrastructures to meet the demands of our clients.

We sell a convenient cable bundling device,
Keburu Matomeru-kun.

Solar and wind power equipment at an educational facility

LED lighting at a driving range

We handle everything from the design to constructionof electrical systems for new and renovatededucational facilities.

We undertake the construction of complete electricalfacilities for sports complexes, civic centers, andother facilities.

Electrical facilities

Electrical facilities

Electrical facilities

Construction ofelectrical equipment
for special buildings

13

Construction of electrical systems
for community facilities

CATV clients include:

Cable bundling device, Keburu Matomeru-kun

JCOM Co., Ltd.
TOKAI Cable Network Corporation(Patent No. 5291394)

Seller: BYCOM Co., Ltd.
Distributor: Sankyo Denki Co., Ltd.
https://www.sankyo-dnk.co.jp/

Electrical facilities

Construction ofelectrical systems
for public facilities
Electrical equipment fora special building

Traditional Japanese-style architecture. We handle
complete electrical systems, including substations,wiring, lighting, and security systems.

Electrical equipment ata public facility

At the request of government and municipal bodies,
we have installed LEDs for numerous public facilities,
security lights, and roadway lights.

14

Bussiness introduction

Overseas Ventures

Welding and Inspection Center
Our group of welding and quality
control experts can reliably meet eventhe most exacting requirements.

Building on the strengths we developed
through half a century of experience,
we are now contributing to the constructionof energy systems in other countries.

With its vast experience and advanced technical capabilities, our Welding andInspection Center meets the diverse needs of our clients, particularly in theconstruction and maintenance of thermal, nuclear, and other power generation
facilities, and other kinds of plants.

On the back of our long track record of successful construction in Japan,
Tokyo Enesys ventured into the construction of energy systems, industrial systems,
and transportation systems overseas.
Now, we are set to take a further leap forward, by combining our half-century of construction
experience with the advantages of the manufacturing plant we have set up in Thailand.

Our BusinessIn addition to our advanced welding technology, we offer dependable quality control to satisfy the requirements of our customers.

Our Business●Manufacture of prefabricated piping in compliance

On top of our usual dedication to safety, we are strongly focused on addressing the increasingly critical need to reduce costs.

with Electricity Business Act● Countries we have worked in over the past 20 years

Asia

EuropeMiddle East

AfricaNorth America

South America●Egypt●Mexico● Suriname●Indonesia● China

●U.K.

●UAE

● Sri Lanka●Vietnam●Bulgaria● Saudi Arabia● Singapore●Thailand●Taiwan● Slovenia●East Timor●Malaysia●On-site welding procedures and welding support for●Kuwait● Ghana● Costa Ricapressure-resistant parts in compliance with theElectricity Business Act●Training and guidance of welders, welding inspectors,

and quality managers

Oceania●Laos●New ZealandSite area:

20,623 m²

Office building:

1,626 m²

Production building workshop:

1,776 m²

Production building inspection:

325 m²Equipment building:Achievements

3,821 m²

Storehouse for small quantity hazardous materials:

50 m²

Production building

Welding

Qualifications

Tanjung Jati (Coal-fired)
KAWERAU (Geothermal)
Thermal Power Plant (Indonesia) Power Station (New Zealand)

LTA Subway Northeast Line(Singapore)

Umm Al Nar Power and
Desalination Plant (UAE)■On-site construction management■Construction of new electrical■On-site construction management■Output:660MW×2Unit■Electrical and instrumentation

construction design, material
procurement, and on-site
construction management■Output:100MW×1Unit

Welding training jig(for welding boiler tube covers)

In April 2020, we established Tokyo Enesys (Thailand) Co., Ltd. Since 2018, we also started accepting foreign technical interntrainees. We are currently taking trainees from Thailand and providing them with practical training at our construction sites.
In addition to Tokyo Enesys (Thailand), a mechanical equipment manufacturing company, we also established an electricalequipment sales company (SCI Enesys Co., Ltd.) in Thailand. This too will help us to participate in more plant projects in Asian
countries and other parts of the world.

Main products●Ducts, piping, vessels● Cable trays, control panels● GTCC power generation parts,

electric furnace parts

BUSINESS FLOWSCI Enesys Co., Ltd.

Main products

Export to Japan

Expand worldwide

control centers

Pipe welding

Welding training operation

Pipe coaster

Facility Overview●Automatedequipment●Machinery and●Distribution boards,

Manufacturingin Thailand

equipment●Welding equipment(portable)

15

Welding training room

Welding and welding inspection■Output:1,550MW（5GT,2ST Unit）

facilities (semi-turnkey)

Recent Initiatives

Tokyo Enesys (Thailand) Co., Ltd.

Electricity Business Act (68 welding methods) / Nuclear Reactor Regulation Law (19 welding
methods) / Japan Welding Engineering Society (welding coordinators: WES)
Private product certification standards for welds in electrical equipment

NC vertical milling machine,
NC sawing machine, NC lathe, pipe coaster
Lathe, vertical drilling machine, shaping
machine, beveling machine, band saw,
turning roll, universal testing machine
Plasma cutter, semi-automatic MAG welder,arc welder, TIG welder

NC lathe work

NC vertical milling machine16

Bussiness introduction

Civil Engineering and Building

Technology

Technology

We cater to a wide variety of needsin the general construction industry.

Solar panel mounting device

On-site remote patrol PLC system[Utility model No. 3192967]

Tokyo Enesys also applies its deep knowledge of energized parts and power
generation and substation facilities to satisfy a wide range of needs in survey, design,
construction, and maintenance of power plants, substations, and other kinds ofplants, as well as the general civil engineering and construction sector.

This device is used for mounting solar
panels safely and efficiently at highelevations. Due to the accumulation of snow
at mega solar power plants in areas of heavy
snowfall, mounting structures need to behigh and steeply angled, thereby imposing aheavy burden on workers. This device
reduces the need for workers to carrypanels to high places, making the job ofmounting panels safer and more efficient.

We developed a Wi-Fi system using a
portable PLC (Power Line
Communication) to enable real-timebidirectional communication inunderground substation facilities andcable tunnels, where communication istypically difficult.

Our BusinessTwo divisions, the Civil Engineering Division and Building Division , handle a variety of plant projects,
as well as general civil engineering and construction projects.

Civil Engineering
Division“Slag catcher” fitting
for pipe coasters

Building
Division

Construction of substation atthermal power plant

Civil engineering and constructionof a gas engine cogeneration
facility for a corporate client

Main business activities

Main business activities● Construction, modification, and repair of structures at●Design, construction, repair, and modification of

power plants and substation facilities (site preparation,piling, foundations, conduits, paving, greening, etc.)● Construction of general civil engineering structures,

ancillary facilities, and exterior●Diagnosis of degradation and modification/repair of civilengineering facilities and structures●Investigation and design of underground structuresgeneral buildings● Construction, repair, and modification of power plants

Installation of a“slag catcher”
fitting

During pipe
cutting

When cutting pipes with a pipe
coaster (automatic cutting
machine), this “slag catcher”
fitting is installed inside thepipes to collect the slag
generated during cutting,thereby preventing slag fromsticking to the inside of pipes.
For pipe diameters: 150-600 A

Insulator casing mat[Patent No. 5798462]

and substations

Repeater (left) andsurvey robot (right)

Cable bundling device ,“Keburu Matomeru-kun”

Video cameras mounted on a survey
robot can be used to visually inspect
the surroundings in areas where it isdifficult for a person to enter. In areas
subject to radio interference, anautonomously moving repeater robot
can be directed toward the inspection
area to ensure uninterrupted radio
wave connectivity. Up to 10 repeaters
can be linked together.

Bolt polishing device[Utility model No. 3182329]

repair/reinforcement of buildings●Improvement and repair of plumbing systems,

air conditioning systems, and other facilities
A footrest has been added to theinsulator casing mat used wheninspecting large transformers, to assist
in lifting and lowering. This greatly
improves safety when working aroundinsulators.

Rotating jig for inspectionof large rotors or fans
Solar power plant (2,500 kW) (sitepreparation, foundations, mounting
structure, panel installation,
drainage, outer fence)[Patent pending.]

Remote work vehicle
controlled over a Wi-Fi network[Patent No. 5291394]●Diagnosis of degradation, seismic diagnosis, andAchievements

Construction of mega solar power
plant and regulating dam
H14 m×L51 m×W2 m (dam top),
2,700m3 of concrete[Patent pending.]

Construction of new spare parts
warehouse

Installation of elevator for boilerbuilding in thermal power plantThis cable bundling device is used when
installing and aligning many coaxial cables.
The device makes it possible to bundle
together a greater number of cables.

Water immersion-type pipe
wall thinning measurement
device (inner UT)[Patent No. 5574861]

This is a simple-to-use device forcleaning bolt threads. Bolt threads arepolished by the rotation of a dual-axisbrush. The device is powered by 100
VAC and is fitted with casters for easy
mobility.

Drain funnel backflow
prevention device[Patent No. 3484572 / Patent No. 5596463]
Damper-type

FLOW
Normal(backflow
prevention)

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Removal of oil tank foundations andother items
Breaking foundations and removing
piles

Construction of new substation

Paving road within substation
premises

Construction of soundproof walls(H=7 m to 3.5 m, L=157.4 m)

This rotor rotation device serves tofacilitate the inspection andreplacement of the rotor blades of large
GT rotors and large fans (IDF).
It prevents “catching” and increases theefficiency of inspection work.

This device is used to inspect external
corrosion by inserting it into a pipe filled withwater and ultrasonically measuring theremaining wall thickness of the pipe from theinside. It makes it possible to inspect thecorrosion of pipes that are difficult to visuallyinspect externally, such as buried piping.

Drainage

When installed at a drain outlet, thisdevice prevents backflow of air from asystem. It is useful for managing negative
pressure in buildings at nuclear power
plants. It is available in three variations:damper-type, float-type, and improved
float-type (for overflow prevention).
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