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October 28, 2025

(Rounded down to the nearest million yen)

1. Consolidated Results for the Six Months Ended September 30, 2025

   1. Consolidated business results (Percentage figures indicate the percentage change on the results for the previous year)

      	Net sales		Operating income		Ordinary income		Net income attributable to owners of the parent
      	(Unit: million yen)	(％)	(Unit: million yen)	(％)	(Unit: million yen)	(％)	(Unit: million yen)	(％)
      April 1 – September 30, 2025	307,161	4.7	23,817	24.7	26,734	17.1	20,236	12.5
      April 1 – September 30, 2024	293,404	-2.5	19,098	-33.7	22,839	-28.4	17,989	-26.9

      Note: Comprehensive income 2nd Quarter ended September 2025: ¥27,157 million (167.9%), 2nd Quarter ended September 2024: ¥10,138 million (-76.3%)

      	Net income per share	Diluted earnings per share
      	(Unit: yen)	(Unit: yen)
      April 1 – September 30, 2025	211.84	-
      April 1 – September 30, 2024	174.49	-

   2. Consolidated financial position

   	Total assets	Net assets	Equity ratio
   	(Unit: million yen)	(Unit: million yen)	(％)
   2nd Quarter ended September 2025	760,818	456,743	60.0
   FY2024 ended March 2025	758,765	448,394	59.1

   Reference: Net assets (excluding minority interests)

   2nd Quarter ended September 2025: ¥456,743 million, FY2024 ended March 2025: ¥448,394 million

2. Dividends

   	Dividend per share
   	End of 1st Quarter	End of 2nd Quarter	End of 3rd Quarter	End of 4th Quarter	Total
   FY2024 ended March 2025	(Unit: yen) -	(Unit: yen) 40.00	(Unit: yen) -	(Unit: yen) 40.00	(Unit: yen) 80.00
   FY2025 ending March 2026	-	45.00
   FY2025 ending March 2026 (forecasts)			-	45.00	90.00

   Notes: Revision of previously announced dividend forecasts: No

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

   (Percentage figures indicate the percentage change on the results for the previous year)

   	Net sales		Operating income		Ordinary income		Net income attributable to owners of the parent		Net income per share
   Full term	(Unit: million yen)	(％)	(Unit: million yen)	(％)	(Unit: million yen)	(％)	(Unit: million yen)	(％)	(Unit: yen)
   	630,000	-4.0	27,000	-12.6	33,000	1.8	27,000	6.1	287.01

   Notes: Revision of previously announced forecasts during this period: Yes

   • Notes

     1. Changes in significant consolidated subsidiaries: No

     2. Application of accounting treatment peculiar to quarterly consolidated financial statement preparation: Yes*

        * For details, please refer to “3. Notes about Consolidated Statements (Application of accounting treatment specific to the preparation of quarterly consolidated financial statements)” on page 6.

     3. Changes in accounting treatment principles, changes in accounting estimates, and retrospective restatements

        • Changes accompanied by reform of accounting standards: No

        • Other changes: No

        • Changes in accounting estimates: No

        • Retrospective restatements: No

     4. Number of outstanding shares (common stock)

        Number of outstanding shares at the end of the term (Inclusive of treasury stock)	2nd Quarter ended September 2025	98,220,085 shares	FY2024 ended March 2025	98,220,085 shares
        Number of treasury stock at the end of the term	2nd Quarter ended September 2025	4,146,579 shares	FY2024 ended March 2025	624,242 shares
        Average number of outstanding shares during the term	2nd Quarter ended September 2025	95,527,068 shares	2nd Quarter ended September 2024	103,100,472 shares

   • This report of consolidated financial results is not subject to audit.

   • Notes on proper use of forecasts and other matters

The forecasts in this document are based on the information available at the time of the release of this document. Due to various factors, the actual result may vary from the forecast data.

1. Consolidated balance sheet

   (Unit: million yen)

   	As of March 31, 2025	As of September 30, 2025
   Assets
   Noncurrent assets
   Property, plant and equipment
   Production facilities	53,986	52,003
   Distribution facilities	143,063	139,422
   Service and maintenance facilities	28,197	27,492
   Other facilities	52,098	52,032
   Construction in progress	21,469	21,038
   Total property, plant and equipment	298,815	291,988
   Intangible assets	16,628	16,786
   Other
   Total intangible assets	16,628	16,786
   Investments and other assets
   Investment securities	170,019	188,700
   Net defined benefit asset	49,111	49,799
   Other	36,539	37,425
   Allowance for doubtful accounts	-73	-73
   Total investments and other assets	255,596	275,852
   Total noncurrent assets	571,040	584,627
   Current assets
   Cash and deposits	46,749	28,326
   Notes and accounts receivable and contract assets	84,610	67,720
   Securities	-	22,000
   Inventories	28,248	27,948
   Other	28,956	31,037
   Allowance for doubtful accounts	-839	-841
   Total current assets	187,725	176,191
   Total assets	758,765	760,818

   (Unit: million yen)

   	As of March 31, 2025	As of September 30, 2025
   Liabilities
   Noncurrent liabilities
   Bonds payable	87,500	87,500
   Long-term loans payable	43,722	40,412
   Provision for gas holder repairs	688	717
   Reserve for safety measures	21,699	20,333
   Provision for gas appliance warranties	1,947	1,778
   Net defined benefit liability	6,194	6,259
   Other	28,326	32,448
   Total noncurrent liabilities	190,077	189,450
   Current liabilities
   Current portion of noncurrent liabilities	22,166	24,367
   Notes and accounts payable-trade	38,563	36,980
   Short-term loans payable	2,100	1,800
   Income taxes payable	7,886	10,642
   Other	49,576	40,834
   Total current liabilities	120,293	114,625
   Total liabilities	310,370	304,075
   Net assets
   Shareholders' equity
   Capital stock	33,072	33,072
   Capital surplus	8,387	8,389
   Retained earnings	306,042	322,374
   Treasury stock	-2,470	-17,377
   Total shareholders' equity	345,032	346,460
   Other comprehensive income
   Valuation difference on available-for-sale securities	61,706	73,588
   Deferred gains or losses on hedges	5,564	5,239
   Foreign currency translation adjustment	14,559	11,010
   Remeasurements of defined benefit plans	21,531	20,445
   Total other comprehensive income	103,362	110,283
   Total net assets	448,394	456,743
   Total liabilities and net assets	758,765	760,818

2. Consolidated statements of income and comprehensive income, Consolidated statements of income for the Six Months

   (Unit: million yen)

   	2nd Quarter of FY2024 (April – September 2024)	2nd Quarter of FY2025 (April – September 2025)
   Net sales	293,404	307,161
   Cost of sales	211,784	217,807
   Gross profit	81,619	89,353
   Selling, general and administrative expenses	62,520	65,536
   Operating income	19,098	23,817
   Non-operating income
   Interest income	591	559
   Dividend income	1,510	1,928
   Rent income	340	339
   Miscellaneous income	2,103	1,217
   Total non-operating income	4,545	4,045
   Non-operating expenses
   Interest expenses	500	577
   Miscellaneous expenses	303	551
   Total non-operating expenses	804	1,128
   Ordinary income	22,839	26,734
   Extraordinary income	2,140	1,384
   Gain on sale of investment securities
   Total extraordinary income	2,140	1,384
   Income before income taxes	24,980	28,118
   Income taxes	6,990	7,882
   Net income	17,989	20,236
   Net income attributable to owners of the parent	17,989	20,236

   Consolidated statements of comprehensive income for the Six Months

   (Unit: million yen)

   	2nd Quarter of FY2024 (April – September 2024)	2nd Quarter of FY2025 (April – September 2025)
   Net income	17,989	20,236
   Other comprehensive income
   Valuation difference on available-for-sale securities	-8,637	11,881
   Deferred gains or losses on hedges	-2,207	-730
   Foreign currency translation adjustment	3,778	-3,508
   Remeasurements of defined benefit plans, net of tax	-1,136	-1,080
   Share of other comprehensive income of entities accounted for using equity method	351	357
   Total other comprehensive income	-7,850	6,920
   Comprehensive income	10,138	27,157
   Comprehensive income attributable to
   Comprehensive income attributable to owners of the parent	10,138	27,157
   Comprehensive income attributable to non-controlling interests	-	-

3. Notes about consolidated statements
   • Note of going concerns’ premise: No
   • Significant change in shareholders’ equity: Yes

     • Purchase of treasury stock

       The Company repurchased its shares as follow, pursuant to Article 156 of the Companies Act as applied pursuant to Article 165, paragraph 3. The acquisition of treasury shares, which was decided at the Board of Directors meeting held on March 27, 2025, was completed with the acquisition detailed below.

       1. Types of shares repurchased Common stock

       2. Number of shares repurchased 3,544,800 shares

       3. Total value of shares repurchased 14,999 million yen

       4. Period of repurchase From April 1, 2025 to September 22, 2025 (Commitment basis)

       5. Method of repurchase Market purchase on Tokyo Stock Exchange

   • Application of accounting treatment specific to the preparation of quarterly consolidated financial statementsCalculation of tax costs

     Tax expenses are calculated by multiplying the quarterly net income before tax adjustment by the estimated effective tax rate for the current consolidated fiscal year.

     The amount of corporate tax adjustment is included in Income taxes.

   • Segment information

Segment information by category of business

Six months ended September 30, 2024 (April 1 – September 30, 2024)

（Unit: million yen）

Notes: 1. The “Other” segment incorporates operations not included in reported segment, including LNG processing under contract, leasing of buildings, engineering of gas production plants, CN×P business, sales of housing equipment, data processing services, other leasing business, development of and investment in natural gas resources, etc.

1. The “Adjustments” column in “Segment income or loss” (967 million yen) denotes eliminations of intersegment transactions.

2. Segment income or loss in the table above is reconciled to operating income on the quarterly consolidated statements of income.

Six months ended September 30, 2025 (April 1 – September 30, 2025)

（Unit: million yen）

Notes: 1. The “Other” segment incorporates operations not included in reported segment, including LNG processing under contract, leasing of buildings, engineering of gas production plants, CN×P business, sales of housing equipment, data processing services, other leasing business, development of and investment in natural gas resources, etc.

1. The “Adjustments” column in “Segment income or loss” (809 million yen) denotes eliminations of intersegment transactions.

2. Segment income or loss in the table above is reconciled to operating income on the quarterly consolidated statements of income.