Overview of Business Results for the 3rd Quarter of FY2025

February 6, 2026

Listed company: Cosmo Energy Holdings Co., Ltd. Listed: Tokyo Stock Exchange

Securities code: 5021 URL https://www.cosmo-energy.co.jp/ Representative: Shigeru Yamada, Representative Director & Group CEO

Contact: Masahiro Oikawa, General Manager of Corporate Communication Department Phone: 03-6743-7538 Scheduled date of commencement of dividend payment: －

Creation of supplementary results materials: Yes

Results briefing: Yes (for analysts and institutional investors)

Note：Figures less than 1 million yen are rounded down.

1. Consolidated Financial Results for the Third Quarter of Fiscal Year Ending March 2026 (from April 1, 2025 to December 31, 2025)

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

      	Net sales		Operating profit		Ordinary profit		Profit attributable to owners of parent
      	million yen	%	million yen	%	million yen	%	million yen	%
      Third Quarter, FY2025	2,008,104	-1.5	87,841	-0.3	83,488	-14.4	34,903	-19.3
      Third Quarter, FY2024	2,038,432	1.3	88,093	-13.3	97,482	-14.2	43,251	-24.3

      Note：Comprehensive income Third Quarter, FY2025：42,420 million yen (3.1%) Third Quarter, FY2024：41,133 million yen (-40.5%)

      	Net income per share	Diluted net income per share
      	yen sen	yen sen
      Third Quarter, FY2025	212.61	-
      Third Quarter, FY2024	250.28	-

      Note：The Company conducted a 2-for-1 split of its common shares, effective October 1, 2025. Net income per share has been calculated as if the share split had been conducted at the beginning of the previous consolidated fiscal year.

   2. Consolidated Financial Position

      	Total assets	Net assets	Net worth ratio
      	million yen	million yen	%
      Third Quarter, FY2025	2,193,467	719,073	26.9
      FY2024	2,156,605	707,477	27.1

      [Reference] Net worth Third Quarter, FY2025：590,322 million yen FY2024：584,782 million yen

2. Dividend Payment Results and Forecast

   	Annual dividend per share total
   	As of Q1-end	As of Q2-end	As of Q3-end	As of Fiscal Year-end	Full Year
   	yen sen	yen sen	yen sen	yen sen	yen sen
   FY2024	-	150.00	-	180.00	330.00
   FY2025	-	150.00	-
   FY2025 (forecast)				90.00	-

   Notes：1 Revision made in the dividend payment forecast as of the end of the current quarter from the previous announcement：None

   2 The Company conducted a 2-for-1 split of its common shares, effective October 1, 2025. The interim dividend per share for the first half of the fiscal year ending March 31, 2026 is calculated based on the number of shares before the share split. The forecast for the year-end dividend for the fiscal year ending March 31, 2026 is calculated by taking the share split into consideration. The forecast for the annual dividend is not disclosed because a simple aggregation for the full year cannot be obtained due to the share split. If share split is not taken into consideration, the annual dividend per share for the fiscal year ending March 31, 2026 (forecast) will be 330 yen (the interim dividend per share: 150 yen, the year-end dividend: 180 yen).

3. Consolidated Business Forecast for Fiscal year ending March 31, 2026 (From April 1, 2025 to March 31, 2026)

   (% indicates changes from the corresponding period of the previous fiscal year)

   	Net sales		Operating profit		Ordinary profit		Profit attributable to owners of parent		Net income per share
   FY2025	million yen 2,580,000	% -7.9	million yen 123,000	% -4.1	million yen 121,000	% -19.7	million yen 53,000	% -8.1	yen sen 335.72

   Notes：1 Revision made in the consolidated business forecast as of the end of the current quarter from the previous announcement： None

   1. The Company cancelled treasury shares on August 29, 2025 and conducted a 2 for 1 split of common shares on October 1, 2025. The impact of both is taken into consideration when calculating the net income per share in the consolidated forecasts for the fiscal year ending March 31, 2026. For more information regarding the cancellation of treasury shares, please refer to "2. Quarterly Consolidated Financial Statements and Significant Notes, (3) Notes to quarterly consolidated financial statements (Notes to remarkable changes in shareholders' equity)" on page 7 of the Accompanying Materials.

   2. The Company made a resolution at a Board of Directors meeting held on February 6, 2026 to repurchase its treasury shares. The impact of this repurchase is taken into consideration when calculating the net income per share in the consolidated forecast for the fiscal year ending March 31, 2026. For more information regarding the repurchase of treasury shares, please refer to "2. Quarterly Consolidated Financial Statements and Significant Notes

1. Notes to quarterly consolidated financial statements (Notes to significant subsequent events)" on page 8 of the Accompanying Materials.

Notes

1. Significant changes in the scope of consolidation during the period: Yes

   New: － Exclusion: 1 company (Company name: Yokkaichi Kasumi Power Co., Ltd.)

   Note：Please refer to "2. Quarterly Consolidated Financial Statements and Significant Notes (3) Notes to quarterly consolidated financial statements (Notes on changes in scope of consolidation or application of the equity method)" on page 7 of the Accompanying Materials for details.

2. Application of accounting methods which are exceptional for preparing the quarterly consolidated financial statements: None

3. Changes in accounting policies, changes in accounting estimates, restatements

   1. Changes in accounting policies due to revisions to accounting standards, etc.: None

   2. Changes in accounting policies other than those set out in 1): None

   3. Changes in accounting estimates: None

   4. Restatements: None

4. Number of shares issued (ordinary shares)

   1. Number of shares issued at the end of the period (including treasury shares)

      Third Quarter , FY2025 165,041,722 shares FY2024 176,707,522 shares

   2. Number of treasury shares at the end of the period

      Third Quarter , FY2025 923,167 shares FY2024 11,406,906 shares

   3. Average number of shares outstanding during the period (cumulative from the beginning of the fiscal year)

Third Quarter , FY2025 164,167,487 shares Third Quarter , FY2024 172,815,440 shares

Note：The Company conducted a 2-for-1 split of its common shares, effective October 1, 2025. The number of shares issued at the end of the period, number of treasury shares at the end of the period, and average number of shares outstanding during the period are calculated as if the share split had been conducted at the beginning of the previous fiscal year.

Note：Review by a certified public accountant or audit firm of the attached quarterly consolidated financial statements: Yes（arbitrary） Note：Explanation regarding the proper use of business forecasts and other special notes

The consolidated business forecast for the full year of FY2025 is not updated from the previous announcement made on May 13 2025.

The business forecast above has been created based on the information available as of the date of the publication of this summary. Actual results may be different from the forecast due to a variety of factors. For more information about the results forecast, please refer to "1.Overview of Operating Results, etc. (3)Explanation concerning information regarding consolidated business forecast" on page 2 of the Accompanying Materials.

Supplementary results materials will be posted on the Company's website on Friday, February 6, 2026.

Accompanying Materials ‒ Contents

1. Overview of Operating Results, etc.

   Page

   1. Summary of Operating Results …………………………………………………………………………………………… 2

   2. Summary of Financial Position …………………………………………………………………………………………… 2

   3. Explanation concerning information regarding consolidated business forecast …………………………………………... 2

2. Quarterly Consolidated Financial Statements and Significant Notes

   1. Quarterly consolidated balance sheet……………………………………………………………………………………….. 3

   2. Quarterly consolidated statement of income and consolidated statement of comprehensive income

      (Quarterly consolidated statement of income) ………………………………………………………………………… 5

      (Quarterly consolidated statement of comprehensive income) …………………………………………………………… 6

   3. Notes to quarterly consolidated financial statements

(Notes to the going concern assumption) ………………………………………………………………………………….... 7

(Notes on changes in scope of consolidation or application of the equity method) ...…………………………………….... 7

(Notes to remarkable changes in shareholders' equity) ……………………………………………………………………... 7

(Notes relating to quarterly consolidated statements of cash flows) …………………………………………………....…... 7

(Notes to segment information, etc.) ………………………………………………………………………………………... 8

(Notes to significant subsequent events) …………………………………………………………………………………..... 8

[Independent Auditor's Report on Review of Interim Consolidated Financial Statements] ……………………………….. 9

1. Overview of Operating Results, etc.

   1. Summary of Operating Results

      Consolidated net sales for the cumulative third quarter of FY2025 were 2,008.1 billion yen (down 30.3 billion yen year on year), operating profit 87.8 billion yen (down 0.3 billion yen year on year), ordinary profit 83.5 billion yen (down 14.0 billion yen year on year) and profit attributable to owners of parent for the period 34.9 billion yen (down 8.4 billion yen year on year).

      The operating results for the cumulative third quarter of FY2025 by business segment are as follows：

      1. In the petroleum business segment, due mainly to the fall in crude oil prices from the same period of the previous year, the segment reported net sales of 1,784.1 billion yen (down 34.2 billion yen year on year) and a segment profit was 36.9 billion yen (down 3.2 billion yen year on year).

      2. In the petrochemical business segment, due mainly to an increase in product selling volume from the same period of the previous year, the segment reported net sales of 262.7 billion yen (up 10.6 billion yen year on year). On the other hand, due mainly to continued sluggish product market conditions, a segment loss of 1.6 billion yen (a segment loss of 4.9 billion yen in the same period of the previous year) was reported.

      3. In the oil exploration and production business segment, due mainly to the fall in the sales price of crude oil from the same period of the previous year and the effect of foreign exchange rates, the segment reported net sales of 91.4 billion yen (down 4.7 billion yen year on year) and a segment profit of 37.9 billion yen (down 14.9 billion yen year on year).

      4. In the renewable energy business segment, due mainly to the commencement of operations at new onshore project sites, the segment reported net sales of 11.1 billion yen (up 2.4 billion yen year on year) and a segment profit of 0.9 billion yen (a segment loss of 0.0 billion yen in the same period of the previous year).

   2. Summary of Financial Position

      As for the consolidated financial position as of the end of the third quarter of FY2025, total assets as of December 31, 2025 amounted to 2,193.5 billion yen, up 36.9 billion yen from March 31, 2025, the end of FY2024. This was mainly due to an increase in accounts receivable - trade. Net assets as of December 31, 2025 amounted to 719.1 billion yen with a net worth ratio of 26.9%.

   3. Explanation concerning information regarding consolidated business forecast

   The consolidated business forecast for the full year of FY2025 is not updated from the previous announcement made on May 13, 2025.

2. Quarterly Consolidated Financial Statements and Significant Notes

(1) Quarterly consolidated balance sheet

Assets

Current assets

FY2024

(As of March 31, 2025)

(Unit：million yen) 3Q FY2025

(As of December 31, 2025)