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Overview

TOYOKOH Inc.

Toyokoh develops and deploys two proprietary infrastructure maintenance technologies: SOSEI, a spray-applied instant-cure resin system for reinforcing and weatherproofing aging slate factory roofs (cumulative 1.56 million m² installed as of March 2025), and CoolLaser, a high-power laser cleaning system for removing rust and paint from steel structures such as bridges and transmission towers. The company serves industrial manufacturers (automotive, electronics), logistics operators, and public/private infrastructure owners across Japan. Its competitive strengths lie in patented self-execution ('responsible construction') methodology, superior environmental performance (near-zero industrial waste vs. conventional blasting), salt-removal capability that extends repainting cycles, and co-developed safety standards with government agencies including MLIT and AIST.

Market Cap

¥26.9B

US$172M

¥26.0B

US$166M

Stock¥1,973▼-1.20%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

37.3

LTM EV/EBIT

42.2

LTM PER

49.5

LTM PBR

8.6

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-40.2%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Aug 7, 26Q1 FY2027/03 earnings announced

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

64%

36%

EquityD/E 0.57xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 65.7%

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

Kazuaki TOYOSAWA

32.92%

Custody Bank of Japan, Ltd. (Trust Account)

6.15%

PERSHING SECURITIES LTD CLIENT SAFE CUSTODY ASSET ACCOUNT (Standing Proxy: Citibank, N.A., Tokyo Branch)

4.76%

Hajime SHIRAI

4.36%

The Master Trust Bank of Japan, Ltd. (Trust Account)

4.03%

Kensou Kogyo Co., Ltd.

3.67%

Daiwa House Group Kyosou Kyosei No. 1 Investment Limited Partnership

2.91%

TOYOKOH Inc. Employee Stock Ownership Association

2.63%

TAIHEI DENGYO KAISHA,LTD.

2.20%

NST Inc.

2.11%

Management

7 officers

Kazuaki TOYOSAWA

Representative Director, CEO

Apr 1996 Joined Japan Art Planning Center Co., Ltd. Jan 1999 Started design business as a sole proprietor Jul 2003 Joined the Company; appointed Director of the Company May 2014 Appointed Representative Director, CEO of the Company (current) Jun 2017 Appointed Representative Director of ikplanning Inc. (current)

1976-09-03

Noriyuki SUZUKI

Director, COO

Apr 1999 Joined Toko Inc. (now Murata Manufacturing Co., Ltd.) Apr 2010 Joined ROHM Co., Ltd. Jan 2016 Appointed Japan Representative, Wireless Power Consortium Oct 2017 Joined NVIDIA Corporation; appointed Senior Manager, Industry Business Unit Oct 2019 Joined EDGEMATRIX Corporation; appointed Executive Officer Apr 2024 Joined the Company; appointed Executive Officer of the Company Jun 2024 Appointed Director, COO of the Company (current)

1976-08-04

Hajime SHIRAI

Director, CFO

Apr 2009 Joined Arata Audit Corporation (now PwC Japan LLC) Oct 2011 Joined Frontier Management Inc. Jun 2013 Joined Deloitte Touche Tohmatsu LLC Oct 2016 Appointed Manager, Deloitte Touche Tohmatsu LLC Jun 2019 Appointed Representative Director, Greentea Inc. (current) Outside Audit & Supervisory Board Member, Crute Medical Systems Co., Ltd. Jan 2020 Appointed Outside Audit & Supervisory Board Member, Cambrian Robotics Inc. (now obniz Inc.) Mar 2020 Appointed Outside Audit & Supervisory Board Member, Neural Group Inc. Jun 2020 Joined the Company; appointed Director, CFO of the Company (current) Jan 2021 Appointed Partner, FRIQ Audit Corporation Apr 2026 Appointed Outside Audit & Supervisory Board Member, NST Inc. (current)

1986-05-10

Minoru MORIYA

Director

Apr 1992 Joined MISUMI Corporation (now MISUMI Group Inc.) Aug 2002 Appointed Director, M Out Inc. Sep 2010 Established Minoru Moriya Office; appointed Representative Director (current) Sep 2010 Appointed Vice President and Director, CarePro Inc. Apr 2011 Appointed Vice President and Director, Raksul Inc. Apr 2015 Appointed Director, Soundfan Inc. Oct 2015 Appointed Director, AμB Inc. Oct 2015 Appointed Outside Director, SEEDATA Inc. (now SEEDER Inc.) Nov 2016 Appointed Outside Director, Boutiques Inc. Nov 2017 Appointed Representative Director, Medical Care Design Inc. (now Think Healthcare Inc.) Dec 2017 Appointed Outside Director, Japan Cloud Capital Inc. (now FUNDINNO Inc.) (current) Apr 2018 Appointed Outside Director, Techfeed Inc. Jun 2018 Appointed Director, Future Venture Capital Co., Ltd. Jun 2018 Appointed Outside Director, Selm Inc. Aug 2019 Appointed Outside Director, Japan Agriculture Co., Ltd. Sep 2020 Appointed Outside Director, Galapagos Inc. (current) Sep 2022 Appointed Outside Director, Liberaware Inc. (current) Oct 2022 Appointed Outside Director, VALT JAPAN Inc. (current) Feb 2023 Appointed Outside Director, Doctormate Inc. (current) Jun 2024 Appointed Outside Director of the Company (current) Feb 2026 Appointed Outside Director, Kaitech Inc. (current)

1969-05-01

Hikaru SASAKI

Director (Full-time Audit and Supervisory Committee Member)

Apr 2011 Joined Tobu Delivery Co., Ltd. Feb 2012 Joined Deloitte Touche Tohmatsu LLC Oct 2019 Appointed Manager, Deloitte Touche Tohmatsu LLC Jul 2021 Established Hikaru Sasaki CPA Office (current) Jun 2022 Appointed Full-time Audit & Supervisory Board Member of the Company Jun 2025 Appointed Director (Full-time Audit and Supervisory Committee Member) of the Company (current)

1989-07-07

Hiroshi ABE

Director (Audit and Supervisory Committee Member)

Apr 2000 Joined Suntory Ltd. (now Suntory Holdings Ltd.) Dec 2005 Joined Deloitte Touche Tohmatsu LLC May 2015 Joined Accounting Force Tax Accountant Office May 2015 Appointed Audit & Supervisory Board Member of the Company Oct 2015 Established Accounting Force Tax Corporation; appointed Senior Partner (current) Aug 2018 Appointed Outside Audit & Supervisory Board Member, Libertа Inc. Apr 2019 Appointed Outside Audit & Supervisory Board Member, MOLCURE Inc. (current) Appointed Outside Director, Guppies Inc. Dec 2020 Appointed Outside Audit & Supervisory Board Member, JEMS Inc. (current) Apr 2022 Appointed Outside Audit & Supervisory Board Member, Family Service Eiko Inc. Mar 2024 Appointed Outside Director, Libertа Inc. Jun 2025 Appointed Director (Audit and Supervisory Committee Member) of the Company (current)

1977-12-30

Fumiaki KAWAZOE

Director (Audit and Supervisory Committee Member)

Jan 2014 Joined Anderson Mori & Tomotsune Jan 2021 Appointed Representative Attorney, JTC Tokyo Law Office (now Y Cube Law Office) (current) Feb 2021 Appointed Representative Director and CEO, Smart Award Brothers Inc. (current) Aug 2021 Appointed Lecturer, Waseda University Legal Education and Research Center (current) Jun 2023 Appointed Audit & Supervisory Board Member of the Company Jun 2025 Appointed Director (Audit and Supervisory Committee Member) of the Company (current)

1986-05-28

Large Shareholding Reports

Asset Management One Co., Ltd.

2026-10-22

5.06%→6.08%

ikplanning Co., Ltd.

2026-07-10

31.36%→29.95%

Asset Management One Co., Ltd.

2026-01-09

5.06%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-10-22

Large Shareholding Report

TOYOKOH Inc.

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TOYOKOH Inc.

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