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Overview

Glass and Ceramics Products

NIHON KOGYO CO.,LTD.

Nippon Kogyo (NIKKO) is an integrated manufacturer and seller of concrete secondary products operating across three business segments: Civil Engineering Materials (public infrastructure products such as box culverts, Hume pipes, retaining walls, and sewage products), Landscape Materials (concrete paving materials, imitation timber, and imitation stone for public spaces), and Exterior Products (garden products and stacking blocks for residential use). The company develops products from a global perspective, emphasizing ecology, greening, and universal design. NIKKO serves a broad range of customers from public sector infrastructure projects to private residential developments across Japan.

Market Cap

¥3.40B

US$21.7M

¥4.66B

US$29.7M

Stock¥1,165▼-1.19%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

3.3

LTM EV/EBIT

6.0

LTM PER

6.0

LTM PBR

0.4

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-36.2%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

69%

31%

EquityD/E 0.45xDebt

Liquidity vs Debt 5Y (¥B)▼ Net Debt

CashInv. Sec.Debt

Shareholders

Top 10 hold 53.4%

as of 2026-03-31 · Source: Annual Securities Report

Sekisui Jushi Corporation

23.66%

Nikko Kyoei-kai (Employee Shareholding Association)

8.90%

NIKKO COMPANY Stock Ownership Association

4.89%

Mitsubishi UBE Cement Corporation

3.82%

The Iyo Bank, Ltd. (Standing Proxy: Custody Bank of Japan, Ltd.)

2.68%

Asano Sangyo Co., Ltd.

2.48%

Morio NAKAYAMA

2.31%

THE KAGAWA BANK, LTD.

1.80%

The Shoko Chukin Bank, Ltd.

1.48%

Sumitomo Life Insurance Company (Standing Proxy: Custody Bank of Japan, Ltd.)

1.41%

Management

13 officers

Ayao TADA

Representative Director, Chairman

Apr 1968 Joined the Company Feb 1991 Appointed Director of the Company Jun 2003 Appointed Director, Managing Executive Officer of the Company Apr 2007 General Manager, Business Division of the Company Jun 2013 Appointed Director, Managing Executive Officer of the Company Jun 2014 Appointed Representative Director, President of the Company; President Executive Officer Jun 2019 Appointed Representative Director, Chairman of the Company Jul 2020 Appointed Representative Director, Chairman and President of the Company Jun 2024 Appointed Representative Director, Chairman of the Company (current)

1949-10-29

Yoshimi YAMAGUCHI

Representative Director, President, President Executive Officer

Apr 1983 Joined the Company May 2001 General Manager, General Affairs Department of the Company Jun 2004 Office Manager, Secretary's Office of the Company Jun 2007 Appointed Executive Officer; General Manager, General Affairs Department of the Company Apr 2012 General Manager, Administration Department and General Manager, General Affairs of the Company Jun 2012 Appointed Director of the Company Apr 2015 General Manager, General Affairs and Human Resources Department of the Company Jun 2019 In charge of Administration Division of the Company Jun 2020 Appointed Managing Executive Officer of the Company Jun 2024 Appointed Representative Director, President of the Company; President Executive Officer (current)

1957-05-12

Tomoyuki KIKUCHI

Director

Apr 1990 Joined Sekisui Jushi Corporation Jul 2008 General Manager, Corporate Planning Office, Sekisui Jushi Corporation Apr 2011 General Manager, Accounting Department, Sekisui Jushi Corporation Apr 2014 Appointed Executive Officer, Sekisui Jushi Corporation Jun 2020 Appointed Director of the Company Jun 2021 Appointed Director, Sekisui Jushi Corporation Apr 2023 General Manager, Second Business Division and General Manager, Housing Business Department, Sekisui Jushi Corporation; Advisor, Corporate Headquarters, Sekisui Jushi Corporation Jun 2023 Appointed Director, Sekisui Jushi Corporation; Director of the Company (current) Apr 2024 Appointed Director and Managing Executive Officer, Sekisui Jushi Corporation; in charge of Finance and IR; General Manager, Corporate Strategy Headquarters (current) Apr 2025 General Manager, Legal and Public Relations Department, Sekisui Jushi Corporation

1967-02-13

Tomonari NORIMATSU

Director, Managing Executive Officer, Head of Business Division

Feb 1990 Joined the Company Jun 2008 Appointed Executive Officer of the Company Apr 2009 Branch Manager, Western Japan Branch of the Company Oct 2011 Sales Promotion Manager, Sales Division of the Company Jun 2014 General Manager, Civil Engineering Materials Division of the Company Apr 2020 Head of Civil Engineering and Landscape Materials Business Division; General Manager, Civil Engineering Materials Division of the Company Apr 2021 Head of Civil Engineering and Landscape Business Division; General Manager, Landscape Materials Division of the Company Jun 2021 Appointed Director of the Company (current) Apr 2023 Head of Business Division; General Manager, Landscape Materials Division of the Company Jun 2024 Appointed Managing Executive Officer, Head of Business Division of the Company (current)

1960-01-05

Atsushi KUBO

Director, Executive Officer, in charge of Administration Division

Nov 1989 Joined the Company Nov 2005 Manager, General Affairs Department of the Company Oct 2006 Seconded to Tobanshoji Co., Ltd.; General Manager, Accounting Department Jul 2011 Head of Internal Audit Office of the Company Jun 2014 Appointed Executive Officer; General Manager, Business Management Department of the Company Jun 2019 Appointed Director, Executive Officer; General Manager, Accounting and Finance Department and General Manager, Business Management Department of the Company Oct 2021 General Manager, Business Management Department; in charge of DX Promotion of the Company Oct 2024 Director of the Company (current) Jan 2025 Special Assignment Manager to the President of the Company May 2025 Appointed Executive Officer; in charge of Administration Division of the Company (current)

1961-05-07

Takeshi ICHIJO

Director, Executive Officer, General Manager, Market Development Department, Kinki and Chubu Branch Manager, General Manager, Sales Promotion Department

Apr 1980 Joined Ohba Co., Ltd. Jun 2014 Appointed Executive Officer; Osaka Branch Manager, Ohba Co., Ltd. Jun 2016 Appointed Senior Executive Officer; Tokyo Branch Manager, Ohba Co., Ltd. Jun 2022 Advisor to the Company Jan 2023 Appointed Executive Officer of the Company (current) Apr 2023 Deputy Head of Business Division; General Manager, Business Strategy Office of the Company Jun 2023 Appointed Director of the Company (current) Apr 2024 General Manager, Market Development Department of the Company (current) Apr 2026 Kinki and Chubu Branch Manager; General Manager, Sales Promotion Department of the Company (current)

1957-06-19

Masahiro YAMADA

Director, Executive Officer, General Manager, Exterior Products Division, in charge of Development Department

Mar 1991 Joined the Company Jun 2014 General Manager, Development Department of the Company Jun 2016 Appointed Executive Officer of the Company (current) Jun 2024 Appointed Director of the Company (current) Jan 2025 General Manager, Exterior Products Division; in charge of Development Department of the Company (current)

1964-01-14

Hiroaki KANEKO

Director, Executive Officer, Eastern Japan Branch Manager, General Manager, Sales Promotion Department

Apr 1986 Joined the Company Oct 2012 Branch Manager, Western Japan Branch of the Company Jun 2014 Appointed Executive Officer of the Company (current) Apr 2015 Branch Manager, Kinki and Chubu Branch; General Manager, Sales Promotion Department of the Company Apr 2022 Branch Manager, Eastern Japan Branch; General Manager, Sales Promotion Department, Eastern Japan Branch of the Company Jun 2022 Appointed Director of the Company (current) Apr 2023 Branch Manager, Eastern Japan Branch; Manager, Northern Kanto Sales Office of the Company Apr 2024 Branch Manager, Eastern Japan Branch; General Manager, Sales Promotion Department of the Company (current)

1965-07-11

Hideaki KAWAHITO

Standing Audit and Supervisory Board Member

Apr 1988 Joined the Company Jun 2005 Appointed Executive Officer; Shikoku Branch Manager of the Company Jan 2011 General Manager, Business Planning Office of the Company Jun 2013 President, Sun Carry Co., Ltd. Apr 2014 General Manager, Business Management Department of the Company Jun 2014 Appointed Director; Head of Civil Engineering and Landscape Business Division of the Company Apr 2018 Special Assignment Manager, President's Office of the Company Jun 2018 Appointed Audit and Supervisory Board Member of the Company (current)

1959-06-14

Sunao SUGIYAMA

Director

Apr 1975 Joined Obayashi Corporation Feb 2000 General Manager, Office of Building Business Division, Obayashi Corporation Apr 2002 General Manager, IT Strategy Planning Office, Obayashi Corporation Jun 2005 General Manager, Tokyo Building Business Division, Obayashi Corporation Apr 2007 Executive Officer; Yokohama Branch Manager, Obayashi Corporation Apr 2009 Managing Executive Officer; Deputy Head, Tokyo Building Business Division, Obayashi Corporation Apr 2010 Director, Managing Executive Officer; Tokyo Head Office Manager and Head, Tokyo Head Office Building Business Division, Obayashi Corporation Apr 2015 Representative Director, Senior Managing Executive Officer; Head of Building Division, Obayashi Corporation Apr 2017 Special Advisor, Obayashi Corporation Apr 2018 Advisor, Obayashi Corporation Oct 2022 Appointed Outside Director, SIE Corporation (current) Jun 2025 Appointed Director of the Company (current)

1949-11-06

Maki MIURA

Director

Apr 1981 Joined Ministry of Construction Jul 1997 Director, Koriyama Road Construction Office, Tohoku Regional Construction Bureau, Ministry of Construction Apr 2000 Director, Research Department II, Infrastructure Technology Research Center (Foundation) Feb 2002 Road Environment and Safety Planning Officer, Local Roads Environment Division, Road Bureau, Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Apr 2005 Director-General, Civil Engineering Department, Ibaraki Prefectural Government Aug 2007 Director-General, Road Department, Tohoku Regional Development Bureau, MLIT Jan 2011 Director, National Roads and Disaster Prevention Division, Road Bureau, MLIT Aug 2013 Director-General, Shikoku Regional Development Bureau, MLIT May 2015 Retired from MLIT Aug 2015 Group Head, Road Policy Group, Infrastructure Technology Research Center (Foundation) Mar 2016 Director, Infrastructure Technology Research Center (Foundation) Aug 2018 Joined NIPPO Corporation; Senior Managing Executive Officer Apr 2026 Advisor, NIPPO Corporation (current) Jun 2026 Appointed Director of the Company (current)

1958-03-14

Katsuyoshi SASAKI

Audit and Supervisory Board Member

Apr 1991 Joined Sekisui Jushi Corporation Oct 2010 Plant Manager, Tsuchiura Tsukuba Plant, Sekisui Jushi Corporation Apr 2016 Appointed Executive Officer, Sekisui Jushi Corporation Jun 2019 Appointed Director, Sekisui Jushi Corporation Apr 2021 Appointed Managing Executive Officer, Sekisui Jushi Corporation Oct 2021 In charge of Technology, R&D and Production; Head of Technology Center and Head of Technical Research Institute, Sekisui Jushi Corporation Apr 2024 In charge of Sustainability Promotion, Sekisui Jushi Corporation Jun 2024 Appointed Audit and Supervisory Board Member, Sekisui Jushi Corporation; Appointed Audit and Supervisory Board Member of the Company (current)

1967-09-02

Masumi TANI

Audit and Supervisory Board Member

Apr 1975 Joined Takamatsu Regional Taxation Bureau Jul 2007 Chief National Tax Investigator, Third Investigation Division, Investigation and Inspection Department, Takamatsu Regional Taxation Bureau Jul 2013 Deputy Director, Taxation Department, Takamatsu Regional Taxation Bureau Jul 2014 Director, Investigation and Inspection Department, Takamatsu Regional Taxation Bureau Jul 2015 Retired from Takamatsu Regional Taxation Bureau Jul 2019 Advisor (part-time) to the Company Jun 2023 Appointed Audit and Supervisory Board Member of the Company (current)

1954-05-14

Large Shareholding Reports

No filings

Disclosures

No disclosures

Primary Source Filings

TDnet

2026-07-28

Q1 Earnings Flash

FY ending Mar 2027

NIHON KOGYO CO.,LTD.

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NIHON KOGYO CO.,LTD.

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