Consolidated Financial Results FY2025 has been posted.

October 10, 2025

Company Name:GIKEN LTD.

Stock Exchange Listing: Tokyo

Securities code:6289 (URL https://www.giken.com) Representative: Atsushi Ohira, President and CEO

Contact: Tsuyoshi Tanouchi, Managing Operating Officer Phone: +81-88-846-2933

Scheduled date of Ordinary General Meeting of Shareholders: November 27, 2025 Scheduled date to commence dividend payments: November 28, 2025

Scheduled date to submit the Annual Securities Report: November 26, 2025 Availability of supplementary briefing material on annual results: Yes Holding of Annual Results Briefing Session: No

(Figures are rounded down to the nearest million yen)

1. Consolidated Financial Results for the Fiscal Year Ended August 31, 2025 (from September 1, 2024 to August 31, 2025)

   1. Consolidated Results of Operations (% indicates changes from the previous corresponding term)

      	Net sales		Operating profit		Ordinary profit		Profit attributable to owners of parent
      	Millions of yen	%	Millions of yen	%	Millions of yen	%	Millions of yen	%
      Year ended August 31, 2025	26,337	(10.7)	2,566	(22.8)	2,732	(23.7)	1,487	(39.0)
      Year ended August 31, 2024	29,481	0.7	3,324	11.4	3,582	17.1	2,437	187.9

      (Note) Comprehensive income: Year ended August 31, 2025: ¥1,469 million [(48.9)%]

      Year ended August 31, 2024: ¥2,875 million [225.3%]

      	Profit per share	Fully diluted profit per share	Rate of return on equity	Ordinary profit to total assets	Operating profit to net sales
      	Yen	Yen	%	%	%
      Year ended August 31, 2025	55.74	-	3.7	5.7	9.7
      Year ended August 31, 2024	90.99	-	6.1	7.2	11.3

      (Reference) Equity in earnings of affiliated companies: Year ended August 31, 2025: ¥ - million

      Year ended August 31, 2024: ¥ - million

   2. Consolidated Financial Position

      	Total assets	Net assets	Equity ratio	Net assets per share
      	Millions of yen	Millions of yen	%	Yen
      As of August 31, 2025	47,837	40,285	84.2	1,523.25
      As of August 31, 2024	48,129	40,446	84.0	1,511.02

      (Reference) Equity: As of August 31, 2025: ¥40,285 million

      As of August 31, 2024: ¥40,446 million

   3. Consolidated Cash Flows

      	Net cash provided by (used in) operating activities	Net cash provided by (used in) investing activities	Net cash provided by (used in) financing activities	Cash and cash equivalents at end of period
      	Millions of yen	Millions of yen	Millions of yen	Millions of yen
      Year ended August 31, 2025	1,377	(1,135)	(953)	5,275
      Year ended August 31, 2024	3,139	55	(2,501)	6,070

2. Dividends

   	Annual cash dividends per share					Total dividends paid (annual)	Payout ratio (consolidated)	Dividend on equity ratio (consolidated)
   	End of 1Q	End of 2Q	End of 3Q	Year-end	Annual
   Year ended August 31, 2024 Year ended August 31, 2025	Yen - -	Yen 20.00 22.00	Yen - -	Yen 22.00 32.00	Yen 42.00 54.00	Millions of yen 1,124 1,435	% 46.2 96.9	% 2.8 3.6
   Year ending August 31, 2026 (Forecast)	-	27.00	-	27.00	54.00		61.5

   (Notes) 1. Revisions to the forecast of cash dividends most recently announced: None

   1. Breakdown of year-end cash dividends per share of the fiscal year ended August 31, 2025 (Forecast) are ordinary dividend of 22 yen and commemorative dividend of 10 yen.

   2. GIKEN LTD. hereby announces that, at a meeting of its Board of Directors held on October 10, 2025, it resolved to acquire its own shares. The forecasted consolidated dividend payout ratio for the fiscal year ending August 2026 reflects the impact of this share repurchase. For further details regarding the share repurchase, please refer to page 18 of the

   attached materials: "3. Consolidated Financial Statements and Principal Notes - (5) Notes for Consolidated Financial Statements - (Significant Subsequent Events)."

3. Earnings Forecast of Consolidated Financial Results for the Fiscal Year Ending August 31, 2026 (from September 1, 2025 to August 31, 2026)

(% indicates changes from the previous corresponding term)

(Note)GIKEN LTD. hereby announces that, at a meeting of its Board of Directors held on October 10, 2025, it resolved to acquire its own shares. The forecasted consolidated profit per share reflects the impact of this share repurchase. For further details

regarding the share repurchase, please refer to page 18 of the attached materials: "3. Consolidated Financial Statements and Principal Notes - (5) Notes for Consolidated Financial Statements - (Significant Subsequent Events)."

• Notes

  1. Significant changes in the scope of consolidation during the period (changes in specific subsidiaries involving changes in the scope of consolidation): None

  2. Changes in accounting policies, changes in accounting estimates and restatements

     1. Changes in accounting policies due to the revision of accounting standards: Yes

     2. Changes in accounting policies other than 1): Not applicable

     3. Changes in accounting estimates: Not applicable

     4. Restatements: Not applicable

  3. Total number of issued shares (common stock)

     As of August 31, 2025	28,194,728 shares	As of August 31, 2024	28,194,728 shares
     As of August 31, 2025	1,747,721 shares	As of August 31, 2024	1,427,022 shares
     Year ended August 31, 2025	26,689,415 shares	Year ended August 31, 2024	26,787,641 shares

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

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

     3. Average number of shares outstanding during the period:

        (Reference) Summary of the Non-consolidated Financial Results

        Overview of the Non-consolidated Financial Results for the Fiscal Year Ended August 31, 2025 (from September 1, 2024 to August 31, 2025)

        1. Non-consolidated Results of Operation (% indicates changes from the previous corresponding term)

           	Net sales		Ordinary profit		Profit
           	Millions of yen	%	Millions of yen	%	Millions of yen	%
           Year ended August 31, 2025	17,995	(7.3)	1,694	(27.0)	774	(54.0)
           Year ended August 31, 2024	19,405	(7.5)	2,321	(22.1)	1,682	96.5

           	Profit per share	Fully diluted profit per share
           	Yen	Yen
           Year ended August 31, 2025	29.03	-
           Year ended August 31, 2024	62.81	-

        2. Non-consolidated Financial Position

        	Total assets	Net assets	Equity ratio	Net assets per share
        	Millions of yen	Millions of yen	%	Yen
        As of August 31, 2025	41,565	35,665	85.8	1,348.57
        As of August 31, 2024	42,963	36,407	84.7	1,360.13

        (Reference) Equity: As of August 31, 2025: ¥35,665 million As of August 31, 2024: ¥36,407 million

• Financial results reports are exempt from review conducted by certified public accountants or an audit firm.

• Explanation on the appropriate use of earnings forecasts, and other special notes

The forecast figures stated above are the prospects based on information currently available and contain largely uncertain elements. Actual results may differ from the forecast figures above, depending on various factors such as changes in business conditions.

Please refer to page 4 of the attached material for the above forecasts.

Table of Contents of Appendix

1. Overview of Business Results, etc. ..................................................................................................................................... 2

   1. Overview of Business Results for the Current Fiscal Year ............................................................................................ 2

   2. Overview of Financial Position for the Current Fiscal Year .......................................................................................... 3

   3. Outlook on the Next Fiscal Year ................................................................................................................................... 4

   4. Basic Policy on Profit Distribution, and Dividends for the Current and Next Fiscal Years .......................................... 4

2. Basic Policy regarding Selection of Accounting Standards ................................................................................................ 5

3. Consolidated Financial Statements and Principal Notes ..................................................................................................... 6

   1. Consolidated Balance Sheets ........................................................................................................................................ 6

   2. Consolidated Statements of Income and Consolidated Statements of Comprehensive Income .................................... 8

      (Consolidated Statements of Income) ..................................................................................................................... 8

      (Consolidated Statements of Comprehensive Income) ........................................................................................... 9

   3. Consolidated Statements of Changes in Net Assets 10

   4. Consolidated Statements of Cash Flows 12

   5. Notes for Consolidated Financial Statements 13

(Notes on Going Concern Assumption) 13

(Notes on Change of Accounting Policy) 13

(Additional Information) 13

(Segment Information, etc.) 14

(Per Share Information) 18

(Material Subsequent Events) 18

- 1 -

1. Overview of Business Results, etc.

   1. Overview of Business Results for the Current Fiscal Year

In terms of the domestic business environment during the fiscal year ended August 31, 2025, construction investment remained solid, supported by solid government spending mainly for disaster prevention and mitigation and national resilience strengthening and recovery in corporate spending. In our business, we worked to promote the Implant Method*1mainly for post-disaster recovery and reconstruction, disaster prevention and mitigation, national resilience strengthening projects, and updating and functional strengthening projects for aging infrastructures. As a result, the number of projects that adopted our method remained steady. These included works on levees, revetments and quay walls of rivers, coasts and harbors; and road-related bridges and retaining wall constructions. However, an adverse effect on sale of general machinery has become evident due to rising construction costs and the resulting decline in construction volume, as well as slowdown in users' capital investment resulting from shortage of skilled workers.

In our domestic business, as a result of the activities to disseminate our methods over the years, the Hard Ground Press-in Method for 900mm wide hat sheet piles was newly included in the 2025 Civil Engineering Estimation Standards by Ministry of Land, Infrastructure, Transport and Tourism (MLIT). This means that the method is officially recognized as a standard method for public works, and the diffusion of the method is expected to accelerate. In July, we deployed SILENT PILER F301, a modular model applicable to hat sheet piles in a designated factory in Okinawa Prefecture and launched the leasing business. This has made us capable of offering the product to all areas of Japan.

In product sales, as part of efforts to address labor shortages of the users, we started offering three types of user support DX applications. The applications work with our cloud-based data platform "G-Lab*2," which enables users to streamline machinery and construction site management and speed up information sharing and analysis, and communication. In the fiscal year ended August 31, 2025, we conducted a survey through interviews with users concerning customer satisfaction, issues and challenges, and requests. We will incorporate the survey results into our development policy to accelerate development and deployment of products that match the customers' needs. We will thereby contribute to labor and energy conservation in the construction industry. In domestic constructions, at the site of the road collapse in Yashio-shi, Saitama Prefecture, our press-in method capable of space-

saving construction without vibration or noise was employed to complete urgent work to build a sewer bypass route. The nationwide inspections of sewer pipes carried out in response to the accident have revealed that a total length of approximately 300km of pipelines "require measures," making repair and renewal an urgent necessity. The GIKEN Group will use the experience gained from the work to strengthen technological proposals for countermeasure works as well as working on developing new technologies to protect the lifelines and contribute towards developing safety and security of the citizens of the country.

In the undergrounding work for the Nihonbashi section of the Metropolitan Expressway, which forms the centerpiece of the project to renew the expressway system, the construction of temporary embankments for the river widening work with the Gyropress Method continued to make progress as in the previous period. In this project, slated for completion in fiscal 2035, the method is also planned to be employed to challenging construction works such as lower parts of bridge girders.

In overseas business, we have reviewed our existing business model that focused on selling machinery and have been working to establish GTOSS*3(GIKEN Total Support System), a comprehensive support service for users, aiming to strengthen collaboration with local partners. We aim to accelerate market expansion by working with partner companies that have become GTOSS members to promote our construction methods.

In Europe, in a new technology development project aimed at renovating the quay walls of the World Heritage-listed Dutch Canal Ring Area of Amsterdam, the commercial phase of construction using electric GYRO PILER that contributes to decarbonization progressed smoothly. Driven by the adoption of construction methods in Delta Programme, a water management project undertaken by the Netherlands, we sold large-scale specialized machinery to the local GTOSS members. In the U.K., where the press-in construction market has a long history, we sold products including F-series SILENT PILER to the biggest member of the country to satisfy its replacement demand. In Europe, users from the Netherlands and Germany joined as GTOSS members; as a result, the number of members increased to six companies.

In Asia, we delivered the fourth GYRO PILER to a user in South Korea who became the tenth new member of GTOSS of the region. In South Korea, the adoption of the Gyropress Method showed a steady increase, and we will continue to work on further expanding the market through support such as technical guidance and construction method proposal.

In tapping new users, we delivered three machines including large-scale specialized machinery to two construction companies in Singapore and India. Both companies were newcomers in the expectation that the need for press-in technology would increase in infrastructure development of airports, railways and high-ways. Employees of the two companies completed a training program at Press-in Dojo, a training facility we opened in this fiscal year, and launched business in their respective countries.

In North America, we have commenced rental of GYRO PILER, and our GTOSS member started a construction using the Gyropress Method for the first time in the U.S. Our Group will support the company to ensure the success of the construction and drive market creation for the Gyropress Method backed by our track record. Against the backdrop of the market expansion in the

- 2 -