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Overview

Chemicals

CLUSTER TECHNOLOGY CO.,LTD.

Cluster Technology Co., Ltd. develops and manufactures high-precision, high-functionality resin composite materials and precision molded components, serving markets including digital cameras, inkjet printers, barcode readers, and precision measurement instruments. The company's core product lines include EpoCluster® (precision functional molding compounds), EpoHard® (epoxy-based electrical insulation materials), Coolie (insulating encapsulant materials), and PasCom® (biomass-derived functional compounds), all leveraging proprietary resin compounding, molding, and mold-making technologies. Additionally, the company develops and sells the PulseInjector® inkjet system for research and development applications capable of ultra-micro liquid dispensing.

Market Cap

¥3.73B

US$23.8M

¥2.77B

US$17.7M

Stock¥656▼-8.76%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

12.9

LTM EV/EBIT

20.2

LTM PER

36.6

LTM PBR

2.2

Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+78.1%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Aug 13, 26Q1 FY2027/03 earnings announced

2Oct 13, 26Epson to acquire 14.91% stake as top shareholder via third-party share allotment

3Oct 14, 26Epson to become top shareholder (14.91%) via third-party share allotment in capital alliance

4Oct 15, 26Epson becomes top shareholder (14.91%) via third-party allotment, capital/business alliance

5Oct 16, 26Epson subscribes to third-party allotment, becomes 14.91% top shareholder

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

100%

EquityD/E 0.00xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 30.8%

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

Nobuo KONO

4.81%

Takashi OKUMA

4.74%

Yoshinori ADACHI

4.14%

Makoto SEKI

4.04%

Yasuhiko KONISHI

3.54%

Toshihiko ADACHI

2.89%

SBI SECURITIES Co., Ltd.

2.66%

NAGASE & CO.,LTD.

1.40%

Ueda Yagi Tanshi Co., Ltd.

1.35%

Sadamasa TSUCHIYA

1.23%

Management

7 officers

Yoshinori ADACHI

Representative Director, President; Head of Development Division

Apr 1994 Joined Tojin Electric Co., Ltd. Apr 1997 Joined the Company Apr 2007 Head of Development Division (current) Jun 2007 Appointed Director Jul 2014 Representative Director, Executive Managing Director Oct 2014 Head of Manufacturing Division No. 2 Jun 2017 Head of Manufacturing Division No. 1 Oct 2017 Representative Director, President (current)

1971-07-16

Masayuki FUJITA

Director; Head of Sales and Marketing Division

Apr 1979 Joined Japan Monopoly Corporation Jan 1992 Joined the Company Apr 2004 Plant Manager, Kanto Plant Nov 2004 Appointed Director (current) Apr 2005 Head of Manufacturing Division Oct 2008 Head of Manufacturing Division No. 2 Oct 2014 Head of Sales and Marketing Division (New Market Development) Apr 2016 Head of Manufacturing Division No. 2 Apr 2018 Head of Sales and Marketing Division (current)

1961-01-10

Kozo KOMAI

Director; Head of Administration Division

Apr 1981 Joined Tachibana Securities Co., Ltd. Sep 1994 Joined Soros Global Research Tokyo Representative Office Jun 1995 Joined Century Securities Co., Ltd. Jan 1998 Joined Takatori Corporation Dec 2004 Representative Director, President and Head of Sales Division, Takatori Corporation Jun 2013 Appointed Outside Director of the Company Jun 2017 Appointed Director (current) Jun 2017 Head of Administration Division (current)

1958-10-13

Toshihiko ADACHI

Director; Head of Manufacturing Division

Apr 1997 Joined Kurosu Studio Co., Ltd. Jul 2011 Joined the Company Apr 2020 Head of Manufacturing Division No. 2 Dec 2023 Head of Manufacturing Division (current) Jun 2026 Appointed Director (current)

1973-08-29

Shiro GOTO

Director, Audit and Supervisory Committee Member

Mar 1978 Joined Adachi Shinsangyo Co., Ltd. Oct 2000 Joined the Company Apr 2008 Deputy General Manager, Administration Department, Administration Division; Manager, Internal Audit Office Jun 2020 Director, Audit and Supervisory Committee Member (current)

1955-06-26

Shigeru MATSUMOTO

Director, Audit and Supervisory Committee Member

Apr 1985 Registered as attorney-at-law Apr 1988 Opened Matsumoto Shigeru Law Office Nov 1992 Registered as certified tax accountant Jun 2002 Appointed Audit & Supervisory Board Member of the Company Aug 2009 Representative, Matsumoto Shigeru Law and Tax Office (current) Jun 2016 Director, Audit and Supervisory Committee Member (current)

1952-02-14

Tetsuro HARA

Director, Audit and Supervisory Committee Member

Apr 1979 Joined Hitachi, Ltd. Apr 2002 General Manager, Hokkaido Branch Business Planning Department, Hitachi, Ltd. May 2003 Department Manager, Secretariat, Hitachi, Ltd. (Secretary General, Shunko Kondankai) Jun 2009 Joined Tokyo Shoken Daiko Co., Ltd. Jun 2009 Director, Planning Division, Tokyo Shoken Daiko Co., Ltd. Sep 2010 Director, Sales Division, Tokyo Shoken Daiko Co., Ltd. Feb 2013 Director, Planning Division, Tokyo Shoken Daiko Co., Ltd. Apr 2019 Senior Executive Officer, Tokyo Shoken Daiko Co., Ltd. Jun 2024 Director, Audit and Supervisory Committee Member (current)

1957-03-29

Large Shareholding Reports

No filings

Disclosures

M&A / Other

2026-10-09

CLUSTER TECHNOLOGY CO.,LTD.

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CLUSTER TECHNOLOGY CO.,LTD.

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