Interim report
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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 Three Months Ended June 30 , 2026 ( Under Japanese GAAP ) Company name : Maruichi Steel Tube Ltd. Listing : Tokyo Stock Exchange Securities code : 5463 URL : https://www.maruichikokan.co.jp Representative : Hiroyuki Suzuki Inquiries : Yoshinori Kuitani Telephone : + 81-6-6643-0101 Scheduled date to commence dividend payments : Preparation of supplementary material on financial results : Yes Holding of financial results briefing : Yes Chairman Representative Director and CEO General Manager of Finance Department August 7 , 2026 FASF ( Yen amounts are rounded down to millions , unless otherwise noted . ) 1. Consolidated financial results for the three months ended June 30 , 2026 ( from April 1 , 2026 to June 30 , 2026 ) ( 1 ) Consolidated operating results ( cumulative ) ( Percentages indicate year - on - year changes . ) Net sales Operating profit Three months ended June 30 , 2026 Millions of yen 65,032 % Millions of yen % June 30 , 2025 59,717 8.9 ( 11.5 ) 9,290 38.8 6,694 ( 19.2 ) Ordinary profit Millions of yen 10,374 7,517 % Profit attributable to owners of parent Millions of yen % 38.0 ( 21.9 ) 5,400 31.1 4,117 ( 36.8 ) Note : Comprehensive income For the three months ended June 30 , 2026 : For the three months ended June 30 , 2025 : ¥ 8,912 million [ - % ] ¥ 467 million [ ( 95.9 ) % ] Basic earnings per share Diluted earnings per share Three months ended June 30 , 2026 Yen 24.42 17.94 Yen 24.40 17.93 June 30 , 2025 Note : The Company conducted a 3 - for - 1 stock split of shares of common stock on October 1 , 2025. Basic earnings per share and Diluted earnings per share were calculated assumingthat the share split was conducted at the beginning of the previous fiscal year . ( 2 ) Consolidated financial position As of June 30 , 2026 Total assets Net assets Equity - to - asset ratio Millions of yen 433,099 422,374 Millions of yen % 364,977 81.2 361,936 82.5 As of June 30 , 2026 : ¥ 351,754 million As of March 31 , 2026 : ¥ 348,324 million March 31 , 2026 Reference : Equity -1-
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2 2 2 2 2. . . . .C C C C Ca a a a as s s s sh h h h hd d d d di i i i iv v v v vi i i i id d d d de e e e en n n n nd d d d ds s s s s Annual dividends per share First quarter-end Second quarter-end Third quarter-end Fiscal year-end Total Yen Yen Yen Yen Yen Fiscal year ended - 67.00 - 22.50 -March 31, 2026 Fiscal year ending -March 31, 2027 Fiscal year ending March 31, 2027 (Forecast) 26.00 - 26.00 52.00 Note1: Revisions to the forecast of cash dividends most recently announced: None Note2: The Company conducted a 3-for-1 stock split of shares of common stock on October 1, 2025. The year-end dividend per share for the fiscal year ending March 31, 2026 is stated after considering the effect of such the stock split, and the total annual dividend is expressed as “-.” If the stock split is considered, the second quarter-end dividend for the fiscal year ending March 31, 2026 is 22.33 yen, and the total annual dividend is 44.83 yen. 3 3 3 3 3. . . . .C C C C Co o o o on n n n ns s s s so o o o ol l l l li i i i id d d d da a a a at t t t te e e e ed d d d df f f f fi i i i in n n n na a a a an n n n nc c c c ci i i i ia a a a al l l l lr r r r re e e e es s s s su u u u ul l l l lt t t t tf f f f fo o o o or r r r re e e e ec c c c ca a a a as s s s st t t t ts s s s sf f f f fo o o o or r r r rt t t t th h h h he e e e ef f f f fi i i i is s s s sc c c c ca a a a al l l l ly y y y ye e e e ea a a a ar r r r re e e e en n n n nd d d d di i i i in n n n ng g g g gM M M M Ma a a a ar r r r rc c c c ch h h h h3 3 3 3 31 1 1 1 1, , , , ,2 2 2 2 20 0 0 0 02 2 2 2 27 7 7 7 7( ( ( ( (f f f f fr r r r ro o o o om m m m mA A A A Ap p p p pr r r r ri i i i il l l l l1 1 1 1 1, , , , ,2 2 2 2 20 0 0 0 02 2 2 2 26 6 6 6 6t t t t to o o o oM M M M Ma a a a ar r r r rc c c c ch h h h h3 3 3 3 31 1 1 1 1, , , , ,2 2 2 2 20 0 0 0 02 2 2 2 27 7 7 7 7) ) ) ) ) (Percentages indicate year-on-year changes.) Net sales Operating profit Ordinary profit Profit attributable to owners of parent Basic earnings per share Millions of yen % Millions of yen % Millions of yen % Millions of yen % Yen Six months ending September 30, 2026 132,300 9.8 18,100 17.4 18,700 12.1 11,400 6.6 51.61 Full year 274,500 12.6 36,900 15.2 38,000 11.0 25,700 (3.7) 117.22 Note: Revisions to the financial result forecast most recently announced: None * * * * *N N N N No o o o ot t t t te e e e es s s s s (1) Significant changes in the scope of consolidation during the period: None Newly included: - companies( ) Excluded: - companies( ) (2) Adoption of accounting treatment specific to the preparation of quarterly consolidated financial statements: Yes (3) Changes in accounting policies, changes in accounting estimates, and restatement (i) Changes in accounting policies due to revisions to accounting standards and other regulations: None (ii) Changes in accounting policies due to other reasons: None (iii) Changes in accounting estimates: None (iv) Restatement: None (4) Number of issued shares (common shares) (i) Total number of issued shares at the end of the period (including treasury shares) As of June 30, 2026 252,000,000 shares As of March 31, 2026 252,000,000 shares (ii) Number of treasury shares at the end of the period As of June 30, 2026 30,871,106 shares As of March 31, 2026 30,846,443 shares (iii) Average number of shares outstanding during the period (cumulative from the beginning of the fiscal year) Three months ended June 30, 2026 221,135,975 shares Three months ended June 30, 2025 229,538,432 shares Note: The Company conducted a 3-for-1 stock split of shares of common stock on October 1, 2025. Total number of average number of shares during the period were calculated assuming that the share split was conducted at the beginning of the previous fiscal year. * Review of the Japanese-language originals of the attached consolidated quarterly financial statements by certified public accountants or an audit firm: None * Proper use of earnings forecasts, and other special matters －2－
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Quarterly Consolidated Financial Statements and Primary Notes Quarterly Consolidated Balance Sheet (Millions of yen) As of March 31, 2026 As of June 30, 2026 Assets Current assets Cash and deposits 91,859 96,022 Notes and accounts receivable - trade 47,046 50,914 Securities 13,939 11,168 Finished goods 22,207 21,891 Raw materials and supplies 36,682 37,624 Other 7,047 7,132 Allowance for doubtful accounts (68) (73) Total current assets 218,714 224,679 Non-current assets Property, plant and equipment Land 43,222 43,298 Other 87,854 89,202 Total property, plant and equipment 131,076 132,500 Intangible assets Goodwill 91 88 Other 2,860 2,966 Total intangible assets 2,951 3,055 Investments and other assets Investment securities 63,859 67,120 Other 5,776 5,745 Allowance for doubtful accounts (3) (3) Total investments and other assets 69,632 72,862 Total non-current assets 203,660 208,419 Total assets 422,374 433,099 －3－
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(Millions of yen) As of March 31, 2026 As of June 30, 2026 Liabilities Current liabilities Notes and accounts payable - trade 27,443 30,473 Short-term borrowings 3,599 3,779 Income taxes payable 1,042 4,599 Provision for bonuses 1,222 523 Provision for bonuses for directors (and other officers) 119 65 Other 11,829 13,039 Total current liabilities 45,255 52,480 Non-current liabilities Long-term borrowings 787 609 Provision for retirement benefits for directors (and other officers) 185 211 Provision for share awards 372 419 Retirement benefit liability 3,203 3,013 Deferred tax liabilities 3,054 3,670 Long-term suspense receipt 6,848 6,848 Other 729 868 Total non-current liabilities 15,182 15,641 Total liabilities 60,438 68,121 Net assets Shareholders' equity Share capital 9,595 9,595 Capital surplus 15,473 15,486 Retained earnings 324,241 324,654 Treasury shares (34,645) (34,642) Total shareholders' equity 314,664 315,093 Accumulated other comprehensive income Valuation difference on available-for-sale securities 16,642 18,048 Foreign currency translation adjustment 16,014 17,610 Remeasurements of defined benefit plans 1,003 1,001 Total accumulated other comprehensive income 33,660 36,660 Share acquisition rights 107 107 Non-controlling interests 13,504 13,116 Total net assets 361,936 364,977 Total liabilities and net assets 422,374 433,099 －4－
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Quarterly Consolidated Statements of Income and Comprehensive Income Quarterly Consolidated Statement of Income For the Three-Month Period (Millions of yen) For the three months ended June 30, 2025 For the three months ended June 30, 2026 Net sales 59,717 65,032 Cost of sales 48,154 50,674 Gross profit 11,563 14,357 Selling, general and administrative expenses 4,869 5,067 Operating profit 6,694 9,290 Non-operating income Interest income 216 189 Dividend income 479 706 Share of profit of entities accounted for using equity method 58 67 Foreign exchange gains - 23 Rental income from real estate 166 164 Other 114 88 Total non-operating income 1,036 1,240 Non-operating expenses Interest expenses 15 26 Foreign exchange losses 24 - Rental expenses on real estate 67 86 Other 105 42 Total non-operating expenses 212 156 Ordinary profit 7,517 10,374 Extraordinary income Gain on sale of non-current assets 2 0 Gain on sale of investment securities 6 15 Gain on sale of shares of subsidiaries and associates 139 - Total extraordinary income 148 15 Extraordinary losses Loss on retirement of non-current assets 8 8 Loss on sale of investment securities 5 7 Loss on valuation of investment securities 845 - Other 2 0 Total extraordinary losses 861 15 Profit before income taxes 6,804 10,374 Income taxes 2,413 4,712 Profit 4,391 5,661 Profit attributable to non-controlling interests 273 261 Profit attributable to owners of parent 4,117 5,400 －5－
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Quarterly Consolidated Statement of Comprehensive Income For the Three-Month Period (Millions of yen) For the three months ended June 30, 2025 For the three months ended June 30, 2026 Profit 4,391 5,661 Other comprehensive income Valuation difference on available-for-sale securities 413 1,419 Foreign currency translation adjustment (4,592) 1,902 Remeasurements of defined benefit plans, net of tax 0 (0) Share of other comprehensive income of entities accounted for using equity method 255 (71) Total other comprehensive income (3,924) 3,250 Comprehensive income 467 8,912 Comprehensive income attributable to Comprehensive income attributable to owners of parent 842 8,400 Comprehensive income attributable to non-controlling interests (375) 511 －6－