Supplementary Materials for theSummary of Financial Reports 1Q,
FYE June 30, 2024
November 14, 2023
Integrated Design & Engineering Holdings Co., Ltd.
Stock market: TSE 9161

Integrated Design &Engineering Holdings Co., Ltd.

FYE June 1Q Results
Both orders and revenue increased year on year. However, profits decreased due to the reboundfrom a gain recorded on sales of shares in the same period of the previous fiscal year.
• Orders increased year on year, driven by the strong performance in the Consulting Business and the Urban& Spatial Development Business.

Consolidatedresults• Revenue increased due to steady progress in on-hand projects in all three segments- the Consulting Business,
the Urban & Spatial Development Business, and the Energy Business.
• Operating profit declined due to the rebound from recording of gain on sales of shares of affiliates and gains on
investments in securities (approximately 2.5 billion yen). These gains were related to investments in the Energy
Business in the same period of the previous fiscal year.

(Million yen)Orders
Revenue
Gross profit
Operating profit
Profit before tax

Profit attributable to ownersof parent

FYE June2023 1QResults
31,836
26,782
7,103
1,405
1,555

FYE June
2024 1Q
Results
38,15231,3068,474-562-265

584-335

YoY Comparison
Amount%

6,316
4,523
1,370-1,968-1,821

119.8%
116.9%
119.3%--920-*The Company was established on July 3, 2023, through a sole share transfer and prepared its first condensed quarterly consolidated financial statements for the first quarter starting from the current review period(the three months ended September 30, 2023). As there are no substantial changes in the scope of the consolidated group of the former Nippon Koei Co., Ltd., Nippon Koei's first quarter for the fiscal year ended
June 2023 and the end of the fiscal year (June 30, 2023) are used as comparative information. For comparison, the segment for the Company's subsidiary, El Koei Co., Ltd., has been changed from the Consulting
segment to Other.
Copyright Ⓒ Integrated Design & Engineering Holdings Co., Ltd. All Rights Reserved.

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Results by Business Segment(Million yen)
(Million yen)FYE June
2023 1Q
ResultsFYE June2024
ResultsOrders

YoY ComparisonAmount%■FYE 2023/6 1Q ■FYE 2024/6 1Q (Million yen)

19,734

Orders31,83638,152

6,316

119.8%

Consulting

16,761

19,734

2,973

117.7%

Urban & Spatial Development

11,795

15,2673,471

129.4%

Energy3,128

3,026-102

96.7%

Other

150

123

-26

82.2%

Revenue

26,78231,306

4,523

116.9%

Consulting

14,764

15,594830

105.6%

Urban & Spatial Development

7,719

9,111

1,392

118.0%

Energy

3,991

6,317

2,325

158.3%

Other

307

282-2492.0%

Operating profit

1,405-562-1,968-Consulting-373-504-130-

Urban & Spatial Development-157-40

116-

Energy2,312117-2,194

5.1%

Other-375-135

240-*In conjunction with the reorganization and spin-off, starting from the fiscal year ending June 30, 2024, the Company
changed its accounting method. The management costs of the head office of each company, which were previously
recorded under 'Other,' will now be recorded under each respective segment.

16,761

15,267
11,795

3,128 3,026
123

150
Urban & SpatialDevelopment

Consulting

Revenue

EnergyOther

14,764 15,594

7,719

9,111
3,991

6,317
307

Consulting Urban & Spatial Development

Operating profit

Energy
2,312

282

Other

117
-373-157-40-375-504

ConsultingUrban & Spatial

Energy-135
OtherDevelopment
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2

Overview by Business Segment
Consulting Business■Orders:

Increased year on year attributed to the success of measures to secure domestic orders, and particularly the contributionof winning orders for services related to national resilience.
■Revenue:
Increased attributed to higher capacity utilization resulting from the launch of large-scale overseas projects, such as theIndian high-speed rail project.
■Operating profit: Decreased due to a change in the method of accounting for management expenses and higher related expenses
associated with the spin-off.

Urban & Spatial Development Business■Orders:

Increased year on year driven by the acquisition of orders for domestic defense-related services and large-scale
additional orders for the BDP Group, including educational institutions and hospital facilities.
■Revenue:
Increased as orders received in the previous fiscal year progressed steadily, both in Japan and overseas.
■Operating profit: Increased due to an increase in the operating profit margin of the BDP Group, despite a change in the method ofaccounting for management expenses resulting from the spin-off in Japan.

*The actual exchange rate in 1Q of FYE June 30, 2024: £1 = 183.19 yen (the actual exchange rate in 1Q of FYE June 30, 2023: £1 = 161.97 yen, assumed exchange rate for
FYE June 30, 2024: £1 = 163.69 yen)

Energy Business■Orders:

Decreased compared to the same period of the previous fiscal year, despite acquisition of additional orders fordomestic projects related to energy management, during a period of strong performance.
■Revenue:
Increased due to strong performance in the electric power facility business, including construction of substations, andin the domestic energy management EPC business.
■Operating profit: Decreased due to rebound from recording of gains on sale of shares of PT. ARKORA HYDRO, a former affiliate, andgain on investment in securities (approximately 2.5 billion yen) in the previous fiscal year. This is despite strong
progress in the Manufacturing Division and the Belgian energy storage project.
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FYE June 2024 Forecast
No changes as planned. We aim to set new record highs for orders, revenue, and profits.
(Million yen)FYE June 2023 FYE June 2023 YoY Comparison
Results
Plan
Amount%Orders139,265

155,000

15,734111.3%

Consulting

77,71286,0008,287

110.7%

Urban & Spatial Development

42,56643,000433

101.0%

Energy18,82726,0007,172138.1%

Revenue

141,527

156,000

14,472110.2%

Consulting

81,81888,0006,181

107.6%

Urban & Spatial Development

38,07142,0003,928

110.3%

Energy20,85525,0004,144

119.9%

Other782

1,000

217

127.9%

Operating profit

6,080

11,1005,019182.5%

Operating profit

11,100 5,019 182.5%

Consulting

6,599

7,400

800

112.1%

Consulting

8,068 1,469 122.3%

Urban & Spatial Development

-946

2,700

3,646-

3,306 4,252

Energy2,974

2,200-774

74.0%

Urban & SpatialDevelopment
Energy

2,276

-698

76.5%

Other-2,546-1,200

1,346-

Other-2,550-4-

Profit attributable to owners of parent

3,093

7,100

4,006

229.5%

ROE

3.9%

9.0%

5.1pt

Review of cost burden for each segment
As a result of reorganization and spin-offs, eachcompany’s head office business managementexpenses, which were previously borne by“Other,” will now be borne by each segment.
▼FY2024 operating profit plan reference values using
conventional accounting methods(Million yen)

Reference YoY Comparison
Value
Amount%-Copyright Ⓒ Integrated Design & Engineering Holdings Co., Ltd. All Rights Reserved.

4

Project Highlights (Consulting Business)
Preparation of a Master Plan for the Optimization ofSDF Facilities
ClientMinistry of Defense

Overview

 In this project, we are preparing a master plan for formulating plansfor the relocation and consolidation of buildings and facilities at eachof the bases and garrisons throughout. The goal is to enhance theresilience of SDF facilities.
 The consortium, which includes Nippon Koei and Nippon Koei Urban
Space, has received two orders under the jurisdiction of the North
Kanto Defense Bureau and the Kyushu Defense Bureau.
 In the target areas, we will examine facility layouts through theconstruction and reconstruction of buildings and facilities andconsolidation of facility functions, which include the improvement ofutility facilities, water supply and electricity equipment associatedwith buildings and facilities, and improvement of energy efficiency toprepare a master plan for optimization that coordinates theseaspects.

Current

Project to Strengthen the Food Value Chain in Laos
ClientJICAOverview

 In Laos, one priority issue for national development lies in enhancing added
value in agriculture. By strengthening and promoting the food value chain(FVC) from production to distribution, processing and sales. This is atechnical cooperation project aimed at formulating a master plan (MP) for
FVC promotion in Laos up to 2040. We will work to formulate an MP,
strengthen collaboration among FVC stakeholders, and strengthen thegovernment’s implementation capability by surveying and analyzing thecurrent state of the FVC, establishing issues related to the promotion of theFVC, and implementing a pilot project.
 The project supports activities through cooperation with various companies,
such as developing AI diagnostic applications for crop diseases, introducing
improved seeds, and mitigating climate change risk through diversified
farming. Through these activities, the project will strengthen the Laotian
government’s policy implementation capability, support the independent
promotion of the FVC, and promote participation in the FVC by private-sector
companies.

FutureRelocation & consolidation of garrisons/bases

A large traditional agricultural produce market in southern LaosCopyright Ⓒ Integrated Design & Engineering Holdings Co., Ltd. All Rights Reserved.

5

Project Highlights (Urban & Spatial Development Business)
Partnership Agreement on Urban Developmentwith Tokai City

Overview

 Nippon Koei Urban Space concluded the “Partnership Agreement
on Urban Development Using Advanced Technologies” with Tokai
City in Aichi Prefecture in September 2023.
 Based on the agreement, Nippon Koei Urban Space and Tokai City
will conduct research and study jointly.
 More specifically, the project involves the creation of a 3D urban
model for approximately 100 hectares around Otagawa Station.
Smart services trials will be conducted using the model. In
particular, to create an urban area with a high level of convenience,the project will visualize how public spaces such as roads andparks will be used and conduct experiments in virtual space
incorporating dynamic models and virtual reality to verify effective
maintenance details.

Image of smart city development

Redevelopment of Great Ormond Street Hospital forChildrenClientOverview

Great Ormond Street Hospital BDP has been designing & overseeing the redevelopment of Great
Ormond Street Hospital for Children in Bloomsbury, London, since 2014.
 The project has built facilities with equipment for world-class pediatriccare and research, creating a safer and more comfortable environment
for children and their families. Currently, BDP is designing a new Cancer
Centre with a new main entrance to the hospital as part of the masterplan
redevelopment. This fiscal year, BDP has received an additional order.
 BDP holds licenses for BREEAM* and other major environmental
assessment methods in the United Kingdom and North America and aims
to acquire a high BREEAM rating for this project as well.
*A system for evaluating the environmental performance of buildings developed andoperated by Building Research Establishment (BRE) in the United Kingdom.

Great Ormond Street Hospital
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Project Highlights (Energy Business)
Commercial Operation of Tollgate Battery Energy
Storage in UK starts

Overview

 The ID&E Group has been involved in the storage battery business in theUnited Kingdom since 2014.
 The project has been developed in several stages, including project
investment, control system delivery, and EPC (engineering, procurement,and construction) work.
 Tollgate Battery Energy Storage, which Nippon Koei Energy Europe B.V.,
our subsidiary in the Netherlands, took the initiative in development,planning, EPC, and overall project coordination, was completed andstarted operation in July 2023.
 YUSO, a renewable energy aggregator based in Belgium, developed market
trading and operation systems, while Nippon Koei’s Fukushima Officedeveloped and manufactured control systems. This collaborative effort
achieved one-stop co-creation within the Group.
 We are accumulating operational know-how while maintaining andmanaging large storage batteries.

Panoramic view of the energy storage plant(49.5MW/49.5MWh)

Shin-Keiyo Substation Transformer Expansion ProjectClientTEPCO

Overview

 To meet the increasing demand for electricity in Chiba New Town and Inzai
City in Chiba Prefecture, where industrial areas are being developed, thisproject involves the addition of a transformer at the Shin-Keiyo Substation.
 In 2018, the Company undertook the construction of the new No.8 and No.5
transformers at the substation. Marking the project's second stage, workcommenced on expanding the No.6 transformer in 2022 and was completedin August 2023.
 In the civil engineering work for removing the existing transformer
foundations, the CRC method was used to minimize noise and vibrations inthe surrounding areas and expedite the work period, which has a proventrack record in dismantling foundation structures. Adopting this method
resulted in a two-thirds reduction in the overall work period, without any
adverse effects on facility operation or the surrounding environment.

No.6 transformer (275kV/154kV, 450MVA)
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7Inquiries on IR-related matters
Corporate Communication Office,

TEL:03-5276-2454

MAIL: c-com@n-koei.co.jp

This presentation is provided for information purposes only and is not intended to solicit
any action. Materials in this presentation (including financial results forecasts) havebeen prepared based on credible information available at the time of publication andcertain assumptions ID&E believes to be reasonable. Actual results may differ
significantly due to various factors.

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