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Overview

Construction

MIKIKOGYO CO.,LTD.

Miki Kogyo is a comprehensive construction company headquartered in Himeji, Hyogo Prefecture, engaged in building construction, civil engineering, and mechanical/electrical equipment works, as well as urban gas pipeline installation and maintenance primarily in the Kinki region. The company also operates a housing business through its consolidated subsidiary Sekisui Heim Sanyo Co., Ltd., handling the construction and sale of Sekisui Chemical's prefabricated unit homes ('Sekisui Heim' and 'Sekisui Two-U Home'). Additional business lines include gas equipment sales and installation, real estate leasing and management, solar power generation, and food & beverage operations.

Market Cap

¥7.39B

US$47.2M

¥11.5B

US$73.2M

Stock¥2,294▲+0.92%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

3.9

LTM EV/EBIT

3.7

LTM PER

4.7

LTM PBR

0.4

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-34.4%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Jul 28, 26Q2 FY2026/12 earnings announced

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

72%

28%

EquityD/E 0.38xDebt

Liquidity vs Debt 5Y (¥B)▼ Net Debt

CashInv. Sec.Debt

Shareholders

Top 10 hold 50.0%

as of 2026-06-30 · Source: Annual Securities Report

Hiroya MIKI

14.12%

Yoshimi MIKI

12.64%

Friend Shokai Ltd.

6.58%

Seigo NAITO

3.18%

Katsuya HIRANO

2.49%

Hisayuki FUKUMOTO

2.32%

MIKIKOGYO CO.,LTD. Employee Stock Ownership Association

2.30%

Sumio NAKADA

2.20%

Rakuten Securities, Inc. (Joint Account)

2.14%

Tateko MIKI

2.07%

Management

10 officers

Naoichiro OKADA

Representative Director, President

Jul 1989 Joined the Company Jul 1998 General Manager, Construction and Civil Engineering Sales Division Jan 2002 Executive Officer Mar 2004 Director Mar 2005 Managing Director Apr 2006 General Manager, Construction Business Division May 2008 Representative Director, Senior Managing Director Mar 2010 Representative Director, President Oct 2014 General Manager, Sales Division, Construction Business, Ribu-Life Co., Ltd. Mar 2015 Representative Director, President of the Company (current) Apr 2015 Director, Sekisui Heim Sanyo Co., Ltd. (current)

1956-10-25

Naohiko YAMASHITA

Managing Director, General Manager, Construction Business Division

Apr 1994 Joined the Company Jan 2009 Deputy General Manager, Construction Business Division Jan 2016 Manager, Osaka Branch Office Jan 2017 Executive Officer and General Manager, Construction Business Division (current) Mar 2019 Director Mar 2023 Managing Director (current) Jan 2024 Director, S.D. Sekkei-shitsu Co., Ltd. (current) Aug 2024 Director, Hyo Koumuten Co., Ltd. (current)

1972-01-22

Norihiro SEGAWA

Managing Director, General Manager, Gas Business Division

Mar 2003 Joined the Company Mar 2015 General Manager, Road Business Division Jan 2018 General Manager, Civil Engineering Business Division Jul 2018 Executive Officer and General Manager, Pipeline Business Division Mar 2020 Director Jan 2024 General Manager, Gas Business Division (current) May 2024 Director, Ribu-Life Co., Ltd. Mar 2025 Managing Director (current) May 2025 Director, Sekisui Heim Sanyo Co., Ltd. (current)

1974-11-18

Masatoshi IKEHATA

Director, General Manager, Administration Division

Apr 2013 Head of Credit Review Office (Osaka), Loan Department, Mitsubishi UFJ Bank, Ltd. (currently MUFG Bank, Ltd.) Nov 2015 Executive Officer and General Manager, Sales Planning Department, The Tokushima Taisho Bank, Ltd. Jul 2024 Joined the Company; Executive Officer and General Manager, General Affairs Department Jan 2025 General Manager, Administration Division (current) Apr 2025 Audit & Supervisory Board Member, Sekisui Heim Sanyo Co., Ltd. (current) Mar 2026 Director of the Company (current)

1964-01-26

Tateko MIKI

Full-time Audit & Supervisory Board Member

Mar 1983 Director, Friend Shokai Ltd. (current) Apr 2004 Joined the Company Nov 2005 Executive Officer and General Manager, Administration Division Mar 2014 Director and General Manager, Internal Audit Office Mar 2017 Audit & Supervisory Board Member of the Company (current)

1962-01-13

Hiroshi IZUMI

Audit & Supervisory Board Member

Apr 1976 Joined Osaka National Tax Bureau, National Tax Agency Aug 2004 Representative, Izumi Hiroshi Certified Tax Accountant Office (current) Mar 2015 Audit & Supervisory Board Member of the Company (current)

1953-03-14

Manabu SONODA

Director

Apr 1980 Joined Kobe Steel, Ltd. Jan 2000 Chief Manager, Business Administration Department; Head of Misaki Project Office, Kobe Steel, Ltd. Jun 2009 Director, Shinko Fudosan Co., Ltd. Jun 2016 Full-time Audit & Supervisory Board Member, Shinko Fudosan Co., Ltd. Mar 2020 Director of the Company (current) Apr 2025 Senior Fellow, Japan Production Technology Promotion Association (current)

1955-04-08

Mayumi TERAMOTO

Director

Apr 1983 Joined Hasegawa Komuten Co., Ltd. (currently Haseko Corporation) Apr 2013 Executive Officer, Haseko Life Co., Ltd. Apr 2016 Director and Managing Executive Officer, Haseko Life Co., Ltd. Oct 2017 Executive Officer, Haseko Kanri Holdings Co., Ltd. Apr 2018 Managing Executive Officer, Haseko Kanri Holdings Co., Ltd. Jul 2019 Representative, Teramoto Social Insurance and Labor Consultant Office (current) Mar 2020 Director of the Company (current) Jun 2025 Director, Kaji Tech Co., Ltd. (current)

1959-11-03

Fumiko ITO

Director

Apr 1992 Joined Ministry of Labour (currently Ministry of Health, Labour and Welfare) Apr 2021 Senior Specialist for Women's Advancement, Hyogo Prefectural Center for Gender Equality Oct 2024 Joined NKC Co., Ltd. (current) Mar 2025 Director of the Company (current)

1967-04-16

Masaharu YAMAMOTO

Audit & Supervisory Board Member

Nov 1977 Joined Shinwa Audit Corporation (currently Azsa LLC) Mar 1982 Registered as Certified Public Accountant Jul 2016 Representative, Yamamoto Masaharu CPA Office (current) Mar 2019 Audit & Supervisory Board Member of the Company (current)

1953-09-23

Large Shareholding Reports

Miki Kogyo Co., Ltd.

2026-03-10

5.08%→6.90%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Friend Shokai Co., Ltd.

2026-02-27

6.13%→6.13%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Annual report (as of 2026-06-30): 6.58%

Miki Kogyo Co., Ltd.

2026-02-27

5.08%→6.90%

Yoshimi MIKI

2026-02-25

15.35%→11.78%

Annual report (as of 2026-06-30): 12.64%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-08-07

Semi-Annual Securities Report

Period: Jan 2026 – Dec 2026

MIKIKOGYO CO.,LTD.

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MIKIKOGYO CO.,LTD.

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