MIRAIT ONE : IR Site Updates (Consolidated Financial Results for the Six Months Ended September 30, 2025 etc)

Note: This document has been translated from the Japanese original for reference purposes only. In the event of any discrepancy between this translated document and the Japanese original, the original shall prevail.

Consolidated Financial Results for the Six Months Ended September 30, 2025 [Japanese GAAP]

November 13, 2025

Company name: MIRAIT ONE Corporation Stock exchange listing: TSE

Code number: 1417

URL: https://www.mirait-one.com/english/

Representative: Hidemune Sugahara, President, Co-CEO and COO Contact: Takaaki Mitsuya, Director and CFO

Phone: [phone]

Schedule date of filing semi-annual report: November 13, 2025 Scheduled date of commencing dividend payments: November 28, 2025

Availability of supplementary briefing material on semi-annual results: Available

Schedule of semi-annual results briefing session: Scheduled (for analysts and institutional investors)

(Amounts of less than one million yen are rounded down.)

1. Consolidated Financial Results for the Six Months Ended September 30, 2025 (April 1, 2025 to September 30, 2025)

   1. Consolidated Operating Results (% indicates changes from the same period of the previous fiscal year.)

      	Net sales		Operating profit		Ordinary profit		Profit attributable to owners of parent
      Six months ended September 30, 2025 Six months ended September 30, 2024	million yen	%	million yen	%	million yen	%	million yen	%
      	258,836 249,905	3.6 15.4	7,851 4,680	67.8 97.9	8,530 4,892	74.4 54.9	4,625 1,418	226.1 642.0

      (Note) Comprehensive income: Six months ended September 30, 2025: 4,675 million yen [(2.0)%]

      Six months ended September 30, 2024: 4,771 million yen [41.6%]

      	Net income per share	Diluted net income per share
      	yen	yen
      Six months ended September 30, 2025	51.83	-
      Six months ended September 30, 2024	15.56	-

   2. Consolidated Financial Position

   	Total assets	Net assets	Equity ratio
   	million yen	million yen	%
   As of September 30, 2025	496,422	267,765	52.3
   As of March 31, 2025	537,739	269,877	48.6

   (Reference)

   Equity: As of September 30, 2025: 259,413 million yen

   As of March 31, 2025: 261,501 million yen

2. Dividends

   	Annual dividends per share
   	1st quarter-end	2nd quarter-end	3rd quarter-end	Year-end	Total
   Fiscal year ended March 31, 2025 Fiscal year ending March 31, 2026	yen	yen	yen	yen	yen
   	- -	35.00 40.00	-	40.00	75.00
   Fiscal year ending March 31, 2026 (Forecast)			-	45.00	85.00

   (Note) Revision of dividend forecasts from recently announced figures: None

3. Consolidated Financial Results Forecast for the Fiscal Year Ending March 31, 2026 (April 1, 2025 to March 31, 2026)

   (% indicates changes from the previous corresponding period.)

   	Net sales		Operating profit		Ordinary profit		Profit attributable to owners of parent		Net income per share
   Full year	million yen 620,000	% 7.2	million yen 34,000	% 21.5	million yen 34,000	% 23.8	million yen 21,000	% 22.2	yen 236.73

   (Note) Revision of financial results forecasts from recently announced figures: None

   • Notes:

     1. Significant changes in the scope of consolidation during the period: None

     2. Application of specific accounting practices for preparing consolidated semi-annual financial statements: Yes

        (Note) For details, see Attached Materials 8 page "Application of Specific Accounting Practices for Preparing Semi-annual Consolidated Financial Statements."

     3. Changes in accounting policies, changes in accounting estimates and corrections of errors

        1. Changes in accounting policies due to the revision of accounting standards, etc.: None

        2. Any changes in accounting policies other than 1) above: None

        3. Changes in accounting estimates: None

        4. Corrections of errors: None

     4. Total number of issued shares (common stock)

        1. Total number of issued shares at the end of the period (including treasury stock):

           September 30, 2025

           91,325,329 shares

           March 31, 2025

           91,325,329 shares

        2. Total number of treasury stock at the end of the period:

           September 30, 2025

           2,665,013 shares

           March 31, 2025

           1,614,653 shares

        3. Average number of shares outstanding during the period:

        September 30, 2025

        89,239,580 shares

        September 30, 2024

        91,184,462 shares

        (Note) Total number of treasury stock includes the Company's stock held by the Board Incentive Plan trust under the Company's performance-linked stock remuneration program for directors who are not Audit and Supervisory Committee members and executive officers.

   • Semi-annual financial results reports are exempt from review conducted by certified public accountants or an audit firm.

*Explanation for the appropriate use of financial forecasts and other special notes

While descriptions in this report regarding financial prospects and other future events are based on the information available at the time this report was prepared and certain assumptions considered to be reasonable, and are not intended to guarantee that the Company will achieve these forecasts. In addition, our actual business performance may differ significantly from the prospects due to a number of factors.

Table of Contents: Supplementary Materials

1. Overview of Operating Results and Financial Position 2

   1. Overview of Operating Results for the Period under Review 2

   2. Overview of Financial Position for the Period under Review 3

   3. Future Outlook 3

2. Semi-annual Consolidated Financial Statements and Notes 4

   1. Semi-annual Consolidated Balance Sheets 4

   2. Semi-annual Consolidated Statements of Income and Comprehensive Income 6

      Six Months Ended September 30 6

   3. Notes to Consolidated Financial Statements 8

(Notes on going concern assumption) 8

(Notes on significant changes to shareholders' equity) 8

(Application of Specific Accounting Practices for Preparing Semi-annual Consolidated 8

Financial Statements)

(Notes on segment information） 9

1. Overview of Operating Results and Financial Position

1. Overview of Operating Results for the Period under Review

   During the first six months of the current consolidated period (from April 1, 2025 to September 30, 2025), the Japanese economy continued on a gradual recovery trend due to an improving employment and income environment and the effects of various government policies. On the other hand, the outlook remains uncertain due to the impact of persistent high prices, the trade policy in the U.S., and other issues.

   In the business environment surrounding the MIRAIT ONE Group ("the Group"), demand for cloud services and data centers continues to expand due to the spread of digital transformation (DX) and generative AI.

   There has also been progress in disaster prevention, disaster mitigation, and national land resilience in the face of increasingly severe natural disasters in recent years.

   Furthermore, there has been progress in the government's regional infrastructure redevelopment strategy management initiative that treats multiple and various types of infrastructure, such as roads, water and sewage systems in a wide area as a group. Moreover, there is an expectation that the following will be attained: the use of renewable energy and hydrogen toward achieving carbon neutrality in 2050.

   Against this backdrop, the Group is thoroughly nurturing existing businesses and services based on its purpose and mission. We will further accelerate business expansion by identifying up and coming growth areas, the "MIRAI (future) Domains," and mobilizing group resources to expand urban and regional development/corporate DX and GX, green energy business, software business, and global business. To continue being a reliable corporate group that "builds and protects" the social infrastructure of the future, the Group is promoting the "MIRAIT ONE Group Vision 2030" as our business vision toward 2030 and our fifth five-year Medium-term Management Plan, the final year of which is FY 2026.

   In FY 2025, as a year to establish a foundation for the Group's growth toward achieving the Medium-term Management Plan, we will promote strategic personnel development that underpins business growth and conduct a sustained strengthening of our management foundation, led by risk management, and in this way, will further expand the data center-related business and seize upon business synergies gained from the trinity formed with SEIBU CONSTRUCTION CO., LTD. and Kokusai Kogyo Co., Ltd. Furthermore, we are not only aiming to expand our customer-oriented operating activities, but also to expand our Operations & Management (O&M) business by making Y2S Co., Ltd. a subsidiary of the Company (shares acquired on October 1, 2025).

   In addition, we are also working to make further improvements to our on-site capabilities and our

   productivity through efforts such as promotion of data insight management, including fundamental reforms to our business activities through the use of AI.

   Also, effective October 1, 2025, we combined two Group companies that were responsible for shared businesses into a single Group company (new company name: MIRAIT ONE BUSINESS PARTNERS Corporation) with the aim of optimizing business operations and facilitating future business development.

   As for the consolidated financial results for the first six months ended September 30, 2025, the Environmental and Social Innovation business saw an increase in orders for civil engineering work as well as an increase in sales for electrical and air conditioning work. The ICT Solutions business experienced an increase in both orders and sales for the global business and sales of goods. The NTT business saw an increase in both orders and sales in mobile construction work in addition to an increase in sales in access construction work. In the Multi-carrier business, both orders and sales decreased slightly.

   The data center-related business, which we continue to work to expand, saw an increase in orders.

   As a result, the consolidated financial results for the first six months ended September 30, 2025, amounted to the following:

   • Orders received of 341,699 million yen (+7.0% year-on-year);

   • Net sales of 258,836 million yen (+3.6% year-on-year);

   • Operating profit of 7,851 million yen (+67.8% year-on-year);

   • Ordinary profit of 8,530 million yen (+74.4% year-on-year); and

   • Profit attributable to owners of parent of 4,625 million yen (+226.1% year-on-year).

2. Overview of Financial Position for the Period under Review

   Total assets at the end of the second quarter of the current consolidated period amounted to 496,422 million yen, a decrease of 41,317 million yen from the end of the previous fiscal year, mainly due to a decrease in accounts receivable from completed construction contracts and other, despite an increase in costs on construction contracts in progress.

   Total liabilities decreased by 39,205 million yen from the end of the previous fiscal year to 228,657 million yen, mainly due to a repayment of short-term borrowings and a decrease in accounts payable for construction contracts and other.

   Net assets decreased by 2,112 million yen from the end of the previous fiscal year to 267,765 million yen, mainly due to dividends paid of 3,610 million yen, and purchase of treasury shares of 3,001 million yen, despite having posted 4,625 million yen in profit attributable to owners of parent.

   As a result of the above, the equity ratio at the end of the second quarter stood at 52.3% (compared with 48.6% at the end of the previous fiscal year).

3. Future Outlook

The consolidated financial results forecast for the fiscal year ending March 31, 2026, as announced on May 13, 2025, remains unchanged.