Hibiya Engineering,ltd. TSE:1982

Hibiya Engineering : Earnings Announcement For the First Half of the Fiscal Year Ending March 31, 2026

Published

Source: MarketScreener

‌Hibiya Engineering, Ltd.

(Stock code: 1982)

Earnings Presentation for the First Half of the Fiscal Year Ending March 31, 2026 November 11, 2025


  • ‌Net sales and profit increased YoY.

  • Orders received remained steady, with large projects secured in every category, including data centers/information, driven by ongoing strategic sales activities.

  • Net sales increased YoY, due partly to steady progress of projects carried over from the previous fiscal year.

  • Profit margin increased due to improvements in projected profit at the time of receiving orders, as well as in the profitability of construction projects completed, resulting in a YoY increase in each line-item profit.

    (Billion yen)

    9/2023

    9/2024

    9/2025

    YoY change

    YoY change (%)

    Orders received

    50.7

    30.5

    46.3

    +15.7

    +51.5%

    Net sales

    33.0

    37.6

    40.5

    +2.8

    +7.7%

    Gross profit

    4.9

    7.3

    8.1

    +0.8

    +11.3%

    Gross profit margin

    14.9%

    19.4%

    20.1%

    +0.7

    -

    Operating profit

    0.9

    3.2

    3.6

    +0.3

    +11.7%

    Ordinary profit

    1.4

    3.5

    3.9

    +0.4

    +11.8%

    Profit

    attributable to owners of parent

    0.9

    2.5

    2.8

    +0.2

    +10.1%

    3/2024

    Result (full year)

    3/2025

    Result (full year)

    3/2026

    Forecast (full year)

    Announced on May 13, 2025

    105.5

    93.6

    95.5

    83.7

    89.7

    93.5

    14.9

    17.2

    17.6

    17.8%

    19.2%

    18.9%

    5.7

    7.4

    7.8

    6.4

    8.1

    8.4

    4.8

    5.9

    6.0

    Financial Highlights (Consolidated)



    • ‌To date, no change has been made to the forecast announced on May 13.

      • Strategic sales activities will continue to be implemented to ensure steady progress toward achieving the full-year

        forecast for orders received.

      • Sales performed well in the first half, but no revision is made to the net sales forecast. This is mainly due to the pull-forward impact of net sales recognized in the first half, and the risk of potential extensions of construction periods.

      • Profits were healthy in the first half, but forecasts are kept unrevised in consideration of risks in the second half.

(Billion yen)

8th Medium-term Management Plan

FY3/2024

FY3/2025

FY3/2026

Forecast at announcement of the Plan on May 11, 2023

Results

Forecast at announcement of the Plan on May 11, 2023

Results

Forecast at announcement of the Plan on May 11, 2023

Full year Forecast announced on May 13, 2025

Orders received

86.5

105.5

88.5

93.6

91.0

95.5

Net sales

85.0

83.7

88.5

89.7

90.5

93.5

Gross profit

14.0

14.9

14.7

17.2

15.8

17.6

Gross profit margin

16.5%

17.8%

16.6%

19.2%

17.5%

18.9%

Operating profit

5.0

5.7

5.5

7.4

6.5

7.8

Profit attributable to owners of parent

3.8

4.8

4.1

5.9

4.8

6.0

ROE

7.0% excluding the gain on sale of

cross-shareholdings (¥0.35 bn) 7.3%

8.0% excluding the gain on sale of

cross-shareholdings (¥0.59 bn) 8.5%

8.1% excluding the estimated gain

on sale of cross-shareholdings 8.4%

(¥0.39 bn)

Forecast for FY3/2026



  • ‌ In terms of orders by customer, orders rose YoY, driven by strong demand for large projects across the private and public sectors.

  • By category, orders increased YoY for large air conditioning as well as plumbing and sanitation projects.

    • Affected by the decline in orders due to the order cancellation pertaining to past fiscal year.

60.0

By Customer


50.7

4.4

46.3

3.4

20.5

5.6

16.7

27.1

0.5

30.5

3.8

7.4

4.3

18.6

15.0

(Billion yen)

60.0

By Category

(Billion yen)

50.0

40.0

30.0

20.0

10.0

50.0



50.7

4.4

46.3

3.4

7.8

15.8

19.2

10.4

30.5

9.9

3.8

25.9

5.7

4.0

16.9

40.0

30.0

20.0

10.0

0.0

9/2023 9/2024 9/2025

0.0

9/2023 9/2024 9/2025

NTT Group
Public sector
Private sector
Other*

Air conditioning
Plumbing and sanitation
Electrical

*

Other

Orders Received (1): By Customer/Category (Consolidated)



Orders Received (2): By Facility Category (Non-consolidated)



  • ‌ Orders received increased YoY, driven by large projects in office buildings, manufacturing/ distribution, and other categories.

  • Further sales activities will focus primarily on data centers/information.

    Data centers/Information

    Office buildings

    Manufacturing/Distribution

    Education/Healthcare

    Hotels/Resorts

    Other

    50.0

    45.0

    40.0

    35.0

    30.0

    25.0

    20.0

    15.0

    10.0

    5.0

    0.0

    Trends in orders received (non-consolidated)

    14.2

    16.9

    5.0

    0.0

    1.7

    1.0

    0.3

    0.2

    4.8

    2.4

0.8

3.4

0.2

1.6

8.5

17.8

12.0

26.7

24.4

42.8

46.3


9/2023 9/2024 9/2025

(Billion yen)

Orders Received (3): New vs. Renovation Split (Non-consolidated)



  • ‌ Orders for new construction increased significantly YoY due to a higher volume of orders for large projects from the private sector.

  • Orders for renovation were solid.

    Trends in new vs. renovation split (non-consolidated)

    Renovation

    50.0

    45.0

    (Billion yen)

    New construction

    40.0

    22.0

    (51.4%)

    *Including ¥1.04 bn for fit-out construction

    (77.5%)

    20.8

    (48.6 %)

    6.0

    (22.5%)

*Including ¥0.02 bn for

fit-out construction

20.7

22.9

(49.6%)

26.7

*Including ¥0.18 bn for

fit-out construction

23.3

(50.4%)

42.8

46.3


35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0

9/2023 9/2024 9/2025

  • ‌ Net sales by customer increased, driven by solid progress on construction projects carried over from the previous fiscal year in the private and public sectors.

  • Net sales increased in a balanced manner across air conditioning, plumbing and sanitation, and electrical categories.

45.0

40.0

35.0

30.0

25.0

20.0

15.0

10.0

5.0

By Customer


40.5

37.6

3.2

19.3

3.4

14.5

3.6

33.0

17.1

4.4

13.5

1.2

15.6

0.6

14.3

(Billion yen)

45.0

40.0

35.0

30.0

25.0

20.0

15.0

10.0

5.0

By Category


40.5

3.2

7.2

33.0

37.6

3.6

5.8

4.4

8.9

21.1

5.4

8.2

7.6

19.8

15.4

(Billion yen)

0.0

9/2023 9/2024 9/2025

0.0

9/2023 9/2024 9/2025

NTT Group
Public sector
Private sector
Other*

Air conditioning
Plumbing and sanitation
Electrical
Other*

* Sales earned by consolidated subsidiaries

Net Sales (1): By Customer/Category (Consolidated)



Net Sales (2): By Facility Category (Non-consolidated)



  • ‌Office buildings recorded significant YoY growth due to construction progress on multiple large projects.

  • Education/Healthcare increased YoY due to construction progress on a large-scale hospital project.

  • Other increased YoY due to construction progress on apartment buildings under large-scale redevelopment projects.

    Data centers/Information

    Office buildings

    Manufacturing/Distribution

    Education/Healthcare

    Hotels/Resorts

    Other

    40.0

    35.0

    30.0

    25.0

    20.0

    15.0

    10.0

    5.0

    0.0

    Trends in net sales (non-consolidated) 37.3

    16.2

    13.7

    1.1

    1.2

    1.9

    0.0

    2.9

    2.2

    2.6

    2.7

    1.0

2.4

3.1

2.5

7.8

6.3

13.1

18.6

28.6

34.0



9/2023 9/2024 9/2025

(Billion yen)

Net Sales (3): New vs. Renovation Split (Non-consolidated)



  • ‌Both new construction and renovation expanded.

  • The new construction ratio increased due to growth in new construction projects in the private sector.

    Renovation

    New construction

    40.0

    35.0

    30.0

    25.0

    20.0

    15.0

    Trends in new vs. renovation split (non-consolidated)

    37.3

    17.2

    (60.2%)

    *Including ¥0.44 bn for

    20.5

    (55.1%)

    *Including ¥0.83 bn for

    fit-out construction

    16.7

    (44.9%)

    11.3

    (39.8%)

15.0

(44.3%)

fit-out construction

fit-o

for

*Inc

18.9

(55.7%)

luding ¥0.1 bn ut construction

28.6

34.0



(Billion yen)

10.0

5.0

0.0

9/2023 9/2024 9/2025

  • ‌Projects carried over remained at a high level.

    100.0

    90.0

    By Customer


    0.2

    77.6 81.7

    85.6

    0.3

    0.6

    (Billion yen)

    91.3

    80.0

    70.0

    60.0

    50.0

    40.0

    47.4

    51.2

    59.9

    0.3

    37.6

    0.4

    74.6

    0.4

    57.1

    56.9

    58.1

    30.0

    20.0

    10.0

    0.0

    11.9

    22.0

5.9

18.3

9.0

17.7

9.7

18.5

4.0

4.1

17.7

20.7

3/2023 9/2023 3/2024 9/2024 3/2025 9/2025

NTT Group
Public sector
Private sector
Other*

Projects Carried Over by Customer (Consolidated)



    • ‌ Projects carried over remained at a high level, with well-balanced mix across air conditioning, plumbing and sanitation, and electrical categories.

      100.0

      90.0

      80.0

      70.0

      60.0

      50.0

      59.9

      0.3

      9.9

      77.6

      0.4

      14.9

      20.5

      81.7

      0.2

      13.6

      22.6

      By Category


      74.6

      0.4

      13.4

      18.4

      85.6

      0.3

      13.8

      22.2

      0.6

      (Billion yen)

      91.3

      14.4

      29.1

      40.0 18.2

      30.0

      20.0

      10.0

      31.3

      41.7

      45.2

      42.3

      49.1

      47.1

      0.0

      3/2023 9/2023 3/2024 9/2024 3/2025 9/2025

      Air conditioning
      Plumbing and sanitation
      Electrical
      Other*

      Projects Carried Over by Category (Consolidated)



    • ‌ Construction projects scheduled for completion beyond the fiscal year after next rose significantly YoY, driven by higher orders for large private-sector projects.

      40.0

      35.0

      30.0

      25.0

      36.0 36.3

      15.4

      19.8

      By completion period


      35.7



      32.4

      (Billion yen)

      NTT Group

      Public sector
      Private sector

      20.0

      15.0

      10.0

      5.0

      0.0

      2.3

      13.9

      As of September 30, 2024

      6.0

      14.8

      As of September 30, 2025

      3.8

      22.9

      5.6

      As of September 30, 2024

      26.6

      3.8

      As of September 30, 2025

      5.2

      1.1

      5.8

      4.7

      As of September 30, 2024

      18.6

      16.0

      As of September 30, 2025

      2.0

      0.5

      To be completed within the current fiscal year

      To be completed in the next fiscal year

      To be completed in the fiscal year after next

      or thereafter

      To be completed in FY3/25 FY3/26 FY3/26 FY3/27

      FY3/27 FY3/28

      or beyond or beyond

      Projects Carried Over by Completion Period (Non-consolidated)



      Trends in Dividends per Share



    • ‌Dividends are maintained or increased in a stable and consistent manner in line with medium- to long-term profit growth.

      • The interim dividend stayed unchanged from the forecast at ¥50 per share, up ¥6 per share YoY.

      • Previous fiscal year: ¥44 for interim and ¥50 for year-end dividends, for an annual dividend of ¥94 --> Forecast for the current fiscal year: ¥50 for interim and year-end dividends each, for an annual dividend of ¥100

      110



      (Yen per share)

      Interim dividend
      Year-end dividend

      90

      70

      50

      30

      16

      -10

      2015/3

      2016/3

      2017/3

      10 16

      25

      20

      2018/3

      2019/3

      2020/3

      2021/3

      2022/3

      2023/3

      2024/3

      2025/3

      2026/3

      20 25

      40 40

      30

      40 40

      30

      50

      50

      40 42 43 43

      40 40 42 43 44 50

      FY

      3/2015

      3/2016

      3/2017

      3/2018

      3/2019

      3/2020

      3/2021

      3/2022

      3/2023

      3/2024

      3/2025

      3/2026

      Interim

      16

      20

      25

      30

      40

      40

      40

      40

      42

      43

      44

      50

      Year-end

      16

      20

      25

      30

      40

      40

      40

      42

      43

      43

      50

      50

      (Forecast)

      Full-year

      32

      40

      50

      60

      80

      80

      80

      82

      85

      86

      94

      100

      (Forecast)

      Payout ratio

      (consolidated)

      36.5%

      25.5%

      28.0%

      22.9%

      71.9%

      54.3%

      62.1%

      44.6%

      42.4%

      40.7%

      35.5%

      (36.7%)

      DOE

      1.7%

      2.1%

      2.5%

      2.7%

      3.3%

      3.3%

      3.2%

      3.2%

      3.1%

      3.0%

      3.0%

      -

      • ‌Regarding the share buyback as a means of capital allocation, we conduct share buybacks in a flexible and

        timely manner in view of investment opportunities, share price, and investment efficiency.

        • Share buybacks will be conducted flexibly and timely, up to an upper limit of 600,000 shares for ¥2.10 bn.

        • Result at the end of September: 409,700 shares for ¥1.49 bn purchased (with achievement rates of 68.28% in terms of the number of shares and 71.29% in terms of the buyback amount)





      495.1

      5,000

      Number of shares acquired

      (Thousands of shares)

      4,000

      500

      400

      300

      455.8

      440.2

      462.2

      4,529.988

      8

      4

      I

      378.9

      ncludes tender offer for

      ,493.98

      300.0

      592.3

      582.7

      527.7

      600.0

      (Upper limit)

      409.7

      bought back

      200

      (As of September 30, 2025)

      buybacks

      conducted

      No share

      100

      2015/3

      2016/3

      2017/3

      2018/3

      2019/3

      2020/3

      2021/3

      2022/3

      2023/3

      2024/3

      2025/3

      2026/3

      0

      FY

      3/2015

      3/2016

      3/2017

      3/2018

      3/2019

      3/2020

      3/2021

      3/2022

      3/2023

      3/2024

      3/2025

      3/2026

      Buyback amount (bn yen)

      0.72

      0.70

      0.75

      11.09

      0.70

      0.56

      -

      0.94

      1.13

      1.39

      1.79

      2.10

      (Upper limit)

      Total return ratio (%)

      64.3

      40.7

      53.0

      23.2*

      98.1

      70.6

      62.6

      66.1

      66.6

      70.0

      65.9

      -

      Trends in Share Buyback



      ‌8th Medium-term Management Plan Initiatives



  • The importance of cooling technologies and energy-saving measures in response to hyperscale data center expansion

  • The expansion of hyperscale data centers is driving higher power consumption, which in turn increases exhaust heat.

  • Traditional air cooling has reached its technical limits, and energy-saving measures require reconsideration.



DC

application

General IT

systems

Cloud &

web services

Generative AI

Ultra-high-

density rack

Power consumption per rack

2-4 kVA

6-8 kVA

20-150 kVA

max. 200

kVA

DC facility receiving capacity

2 -5 MW

20-50 MW

50-100+ MW

min. 100 MW

Cooling technology

Air-feed/ air-discharge routing separation

Secured routing for huge-volume air feed and discharge

Rear door coolers and liquid cooling

New technologies such as immersion cooling

Power consumption and cooling technologies for data-center servers by application

* Source: Prepared by Hibiya Engineering based on publicly available press materials

Increased per-rack heat generation due to ultra-high density

Future issues

Efficient cooling technologies

Increase in power consumption

[Next-generation cooling technologies]

Rear door coolers (a liquid cooling

method)

Technology that captures exhaust heat and cools with the cooling system installed on the rear of a server rack

Liquid-cooled servers (Cold Plate)

Technology that directly cools chips in servers

Immersion cooling (a liquid

cooling method)

Technology in which a server is immersed in special liquid to cool chips and peripherals



[Our initiatives]

  • Acquire next-generation cooling technologies

    Verify next-generation cooling technologies at the Data Center Trial Field (DCTF)

  • Integrate knowledge and business capabilities with alliance partners

    Drive open innovation and further business development through the DCTF

  • Build a data-center construction track record and acquire expertise Implement strategic sales activities designated as priority initiatives and enhance productivity through DX

    © HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.

    Verifying immersion cooling at DCTF



    15

    Data Center Cooling Technologies and the Company's Initiatives





    • ‌Expanding our expertise in construction without interrupting business operations-developed delivering NTT telecommunications facilities-into public infrastructure projects

      • Delivering construction technologies that enable 24/7 facility

        operations without interruption

      • Conducting construction that balances safety and efficiency

      • Contributing to the decarbonization of aging facilities

      Value added provided by the Group

Case study

ZEB renovation project at the Koriyama Fire Department building

Construction that preserves continuous operation of critical

[Energy efficiency comparison]

social infrastructure facilities

  • To maintain 24/7 operations, construction is phased, and work hours and sequencing are flexibly adjusted to operational conditions.

    Comprehensive safety measures and emergency risk management

  • Systems are established to prevent the spread of dust and particulate matter, and to enable rapid emergency response.

    Environmental impact reduction and sustainable society

    18,000

    15,000

    12,000

    9,000

    6,000

    3,000

    0

    66% energy reduction vs. current

    3% reduction vs. ZEB standard

    4

Current value Designed value

advancement

    • The latest energy-saving technologies and ZEB renovations are applied to aging facilities, contributing to significant reductions in energy consumption and decarbonization.

      © HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.

      This project achieves a 66% reduction vs current energy use. The design delivers a further 43% reduction below the ZEB standard (ZEB Oriented) contributing to decarbonization and lower operating costs.

      16

      ZEB Renovations That Support Sustainable Social Infrastructure



      ‌Strategic Initiatives for DX Advancement

  • Accelerating DX across the Company with generative AI adoption

    • Embedding generative AI awareness of both potential and applications through employee-participation internal events

    • Enhancing operational efficiency and productivity by equipping every employee to use

      generative AI

      Hibimaru Generative AI Adoption

      Mascot

      Generative AI event for employees

    • Conducted an internal contest leveraging AI image-generation tools

    • Conducted sessions with generative AI evangelists presenting business use cases and expertise, and sharing insights in panel discussions

      Accelerating operational efficiency

      Use cases and practical developments enabled by improved operational efficiency



      AI-enabled advanced hazard prediction and safety measures

      • Enter construction details and site conditions into the AI tool to automatically identify hazardous areas and recommend suitable safety measures

        Expected effects

        • Achieve greater operational efficiencyand

        productivity with enhanced safety standards

        < Specific use cases>

        and productivity

        Post-event Company-wide employee survey results

        Other: 3%

        Attach site photo(s) and enter the planned onsite work into the AI tool.

        Using hazard prediction parameters, the AI instantly evaluates work environment risks and work procedure risks, and automatically generates worker checklists.

    • Slips and falls on wet surfaces during rain

      Q: Did the event encourage you to try using generative AI?

      Already using: 26%

      Interested in using: 71%

    • Heatstroke due to high temperature and humidity

    • Collapse and falls of

scaffolding and temporary

structures 17

© HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.



  • ‌Improving the value of human capital, strengthening the management foundations and sustainable growth

    Distinctive initiatives to

    foster a safety culture

    • Introduced live reenactments performed by professional actors at safety events to more realistically convey the importance of preventing potential accidents and improving onsite communication

    • Provided hands-on learning opportunities to identify hazardous points and practice safety measures through onstage simulations



    Initiatives for the Career

    Design Project for Women

    • Fostered a workplace where employees can continue their careers with confidence, proven by our 100% return-to-work rate after childcare leave

    • Improved flexible work and support systems that enable female employees raising children to return to the jobsite, supporting both childcare and career development

    Enhancement of recruitment with a focus on student touchpoints

    • Expanded capacity for the 5-day internship program, providing more opportunities to directly experience our business and work style

    • Increased Career Open House events to give more students opportunities to deepen their understanding of the industry through hands-on experience



  • Strengthening efforts to maintain and improve safety and quality


    Internship in action

    © HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.

    Female employee working on-site

    Snapshot from safety event

    18

    Strengthening of Management Foundations and ESG Management



  • ‌Secure capital efficiency that exceeds the cost of capital (cost of equity)

Improve ROE

  • Implement the 8th Medium-term Management Plan steadily to consistently increase ROE

Recent trend in ROE

14%

12.3%

12%

Period of the 7th MTMP Target ROE: 6% or more

Period of the 8th MTMP Target ROE: 7% or more

10%

Period of the 6th MTMP Target ROE: 5% or more

8.5%

8.4%

(forecast)

8%

7.4% 7.3%

6%

6.1%

4.7%

7.1%

5.2%

4%

2%

3/2018 3/2019 3/2020 3/2021 3/2022 3/2023 3/2024 3/2025 3/2026

Including gain on sale of investment

securities (¥4.3 bn)



2018/3 2019/3 2020/3 2021/3 2022/3 2023/3 2024/3 2025/3 2026/3

Effectively utilize capital

  • Invest in growth and formed alliances (Return exceeding cost of capital)

  • Invest in human capital, technologies and DX

  • Acquire treasury shares in a timely and flexible manner (improve capital efficiency)

Recent trends in share price and PBR

Strengthen IR activities

  • Improve information disclosure

  • Enhance dialogue with institutional investors

系列1

系列2

Share price (yen) 5,000

4,500

4,000

3,500

PBR (times)

1.32 1.40

1.30

0.98

0.97

3,000 0.84

2,500

2,000

1,500

0.77

0.81

0.76

0.78

0.70

1.20

1.10

1.00

0.90

0.80

0.70

0.60

Share price

PBR

3/2018 3/2019 3/2020 3/2021 3/2022 3/2023 3/2024 3/2025 9/2025 19



© HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.

Improvement of Capital Efficiency and Corporate Value



‌References



‌Company: Hibiya Engineering, Ltd.

Story behind the Company name

▷ We were originally located in Hibiya.

▷ Next to Hibiya Park stood the head office of Nippon Telegraph and Telephone Corporation, which played a pivotal role in our founding.

Representative Director: Hidetaka Nakagita, President and CEO

Head Office: 13F Sumitomo Fudosan Tokyo Mita South

Tower, 3-5-27, Mita, Minato-ku, Tokyo

Established: 1966

Stock Listing: On the Prime Market of the Tokyo Stock Exchange (Stock code: 1982)

Share Capital: ¥5,753 million as of March 31, 2025

Net Sales: ¥89.7 billion (Consolidated) as of March 31, 2025

Number of Employees: 975 (Consolidated) as of March 31, 2025

Business Activities: Design and construction of air conditioning, plumbing and sanitation, electrical, telecommunications, and various other equipment and systems

Consolidated Subsidiaries: Hibiya Tsushou Co., Ltd. (Sales of facility equipment, maintenance of of equipment, etc.)

Nikkey Co., Ltd. (Manufacture of disaster prevention equipment, security

maintenance, etc.)

Corporate Overview



Air conditioning equipment

  • Installation for offices, hotels, and other facilities, controlling indoor temperature and humidity to maintain a comfortable environment

  • Installation for data centers, factories, and other

facilities, ensuring equipment and server functionality

  • Design and construction of air conditioning, plumbing and sanitation, electrical, telecommunications, and various other equipment and systems

    If we think of a building as a

    Plumbing and sanitation facilities

    • Installation of water supply and drainage systems in wet areas (bathrooms, toilets, etc.), ensuring comfortable water use

    • Installation of fire protection systems, including sprinklers, fire pumps, and fire extinguishers

    Construction company Handles the structural framework and exterior walls, equivalent to the "skeleton" and

    "muscles"

Facilities company Handles systems equivalent to the

building's "blood vessels" and "nerves"



human body:

Electrical equipment

  • Installation for communications, control, and information networks, including lighting and power outlets in telecommunications buildings, offices, and other facilities

    Telecommunications equipment

  • Establishment of security systems integrating access control, IP camera surveillance, and biometric authentication

We design, construct, and maintain various building facilities to give life to buildings

and support safe, secure, and comfortable social environments.

Business Activities



  • ‌Deliver high-quality construction backed by extensive experience and expertise gained from various facility

    projects at NTT's telecommunications buildings

  • Provide one-stop solutions that address customer needs at every phase of the building lifecycle, from new construction to renovations

  • Serve as a comprehensive engineering company capable of executing facility construction projects across air conditioning, plumbing and sanitation, electrical, and telecommunications

  • Operate a nationwide network to undertake equipment system installation for NTT Group's telecommunications

    buildings

    Advantages

Locations



(1) Transactions with the NTT Group

Branches and sales offices (as of September 30, 2025)

Hokkaido Branch

(2) Data centers/Information

Branches 10

Sales offices 13

(3) Renovation (construction without interrupting business operations)

(4) Comprehensive engineering

Chugoku Branch

Kyushu Branch Okinawa Branch

Hokuriku Branch

Kansai Branch Tohoku Branch

Head Office

Tokyo Main Office

Yokohama Branch

Tokai Branch

Shikoku Branch

Consolidated Subsidiaries

    • Hibiya Tsushou Co., Ltd. (Sales of facility equipment, maintenance of equipment, etc.)

    • Nikkey Co., Ltd. (Manufacture of disaster prevention equipment, security maintenance, etc.)

      Company Highlights



  • Continuing to focus on the DC field in line with the expansion of hyperscale DC construction

Trends in DC

Features of DC construction

  • Driven by digitalization and generative AI, hyperscale DC construction is expanding in the Tokyo metropolitan area and the Kansai region, with strong construction demand expected to continue for the foreseeable future.

  • Regional data center construction is underway.

    The Group's advantage

  • Leveraging expertise and experience gained through

    the construction of telecommunications buildings.

  • Compared to other property types such as offices and hotels, the share of facility work is higher, and the specifications are more clearly defined.

  • Construction can be completed in a short period of time especially for the fitting out* process as specifications are mostly set at the outset.

  • DX (use of BIM etc.) can improve installation efficiency (unit construction method or front-loading approach).

18,368

3/25

18,505

10,000

0

3/17

3/18

3/19

3/20

3/21

3/22

3/23

3/24

20,000

26,285

24,552

30,000

30,594

30,301

39,349

40,000

47,709

50,000

53,056

Orders received for

Data centers/Information

(Million yen)

60,000



* "Fitting out" refers to construction that makes the interior of a building usable, while "core and shell" refers to the basic structural construction.

Initiatives for Data Center (DC) Construction (1)



  • ‌Promoting open innovation through the Data Center Trial Field



In November 2024, the Data Center Trial Field was established within the Noda Technical Research Center in partnership with NTT Data as a facility to verify next-generation cooling technologies for data centers and promote open innovation and collaboration.

Challenges faced by hyperscale DCs

  • Improve cooling efficiency

  • Reduce energy

  • Improve reliability and maintainability

  • Verifying efficient cooling technologies (water and liquid cooling) and energy-saving technologies to respond to the high heat generation and increased power consumption.

  • Understanding the characteristics of heat sources and server cooling systems, and validating facility/equipment construction

  • Promoting collaboration with diverse participants



Air conditioner manufacturers

Design and construction companies

Heat source equipment manufacturers

Immersion cooling manufacturers

IT vendors

Piping and materials manufacturers

9 participating companies (as of September 2025)





Deta center operators

Users

Academic and research institutes

Power supply manufacturers

Rack peripheral manufacturers





DCIM*



manufacturers

* Data Center Infrastructure Management

Initiatives for Data Center (DC) Construction (2)



  • ‌Promoting front-loading to level workloads

  • Realizing off-site construction by utilizing unit methods and DX measures tailored to the characteristics of each project

  • Unifying data using BIM as a key tool to share information with stakeholders and reduce rework



    Construction contract period

    Pre-construction period Construction

    Front-loading

    Before initiatives

    Peak shift

    After initiatives Unit method

    Off-site construction (Prefabricated at off-site facilities)

    ←Workload

    Unit delivery

    Construction period→

    Efficient operation through DX (BIM utilization)

    • Smooth information sharing with customers and other stakeholders, and early confirmation of specifications

    • Streamlining of various specification reviews and flexible response to design changes

      © HIBIYA ENGINEERING, LTD. ALL RIGHTS RESERVED.

    • Smooth project management through centralization

      of information related to construction

    • Information sharing through construction management ICT tools

26

Initiatives to Improve Construction Efficiency



‌(Yen)

: EPS

: ROE

: Trend in the share price

(%)

280

260

5,000

4,500

9

8.5

8

7.4

7.1

7.3

265.0

4,420

7

6.1

211.0

6

200.4

5.2

5

184.0

4.7

3,125

2,975

4

2,163

147.4

3

1,942

2

1,888

1,938

128.9

1,834

1

240

4,000

220

3,500

200

3,000

180

2,500

160

140

120

2,000

1,500

100

111.3

1,000 0

3/2019 3/2020 3/2021 3/2022 3/2023 3/2024 3/2025 9/25

Trends in the EPS, ROE and Share Price





‌(Cautionary Statement Concerning Forward-Looking Statements)

Forward-looking statements such as forecasts of financial results stated in these materials are based on information currently available to the Company and certain assumptions that the Company judges as rational. These statements are not guarantees of future performance. Actual results may be materially different from the above forecasts for a number of reasons.

[Inquiries about these materials] Hibiya Engineering, Ltd.

IR and Public Relations Department, Management Headquarters

13F Sumitomo Fudosan Tokyo Mita South Tower, 3-5-27, Mita, Minato-ku, Tokyo, 108-6312 TEL: 03-3454-2720 FAX: 03-3454-3410