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Overview

Machinery

Nomura Micro Science Co.,Ltd.

Nomura Micro Science is a specialized manufacturer of ultrapure water (UPW) production systems, serving the semiconductor, flat panel display (FPD), and pharmaceutical industries. The company provides end-to-end solutions encompassing system design, engineering, installation, maintenance, and consumables (cartridge filters, ion exchange resins), as well as wastewater recovery systems that support efficient water resource utilization. The company also offers BOOM (Build Own Operate and Maintenance) contracts, whereby it owns and operates UPW systems on-site and charges customers based on water usage, reducing customers' capital expenditure burden.

Market Cap

¥111B

US$708M

¥158B

US$1.01B

Stock¥2,891▼-0.65%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

21.3

LTM EV/EBIT

26.7

LTM PER

30.9

LTM PBR

2.9

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-45.5%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Aug 10, 26Q1 FY2027/03 earnings announced

2Oct 15, 26US memory chip stocks (Micron, WD) plunge on CXMT competition and 'AI is a casino' remarks, spilling into Japan chip supply chain

MC → EV Bridge

AI Briefing

Generating insights…

Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

40%

60%

EquityD/E 1.50xDebt

Liquidity vs Debt 5Y (¥B)▼ Net Debt

CashInv. Sec.Debt

Shareholders

Top 10 hold 38.1%

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

HOKKO CHEMICAL INDUSTRY CO.,LTD.

10.97%

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

8.05%

Resona Bank, Limited

3.13%

Nomura Shokusan Co., Ltd.

3.13%

Hosaku SENDA

3.13%

Custody Bank of Japan, Ltd. (Trust Account)

2.36%

Katsuragi Kogyo Co., Ltd.

2.26%

Nomura Japan Co., Ltd.

2.09%

Kokudo Bosai Gijutsu Co., Ltd.

1.51%

STATE STREET BANK AND TRUST COMPANY 505223 (Standing Proxy: Mizuho Bank, Ltd.)

1.43%

Management

9 officers

Makoto UCHIDA

Representative Director, President and Executive Officer

Apr 1983 Joined Mitsubishi Rayon Co., Ltd. (now Mitsubishi Chemical Corporation) Oct 2018 Joined the Company Jun 2019 Managing Director, General Manager of Sales Division May 2020 Director, Nomura Micro Science Engineering Co., Ltd. (current) Jun 2020 Senior Managing Director Oct 2020 Representative Director, Senior Managing Director Jun 2021 Representative Director, Executive Vice President Mar 2022 Director, Nomura Micro Science Korea Co., Ltd. (current) Mar 2022 Director, Nomura Micro Science USA Ltd., Co. (current) Apr 2022 Representative Director, Executive Vice President and Executive Officer Jun 2022 Director, A Group Plastic Co., Ltd. (current) Mar 2023 Director, Nomura (Shanghai) Water Treatment Engineering Technology Co., Ltd. Apr 2023 Representative Director, President and Executive Officer (current); Director, Shanghai Nomura Water Treatment Engineering Co., Ltd. (current) Nov 2024 Director, Nomura Micro Science Singapore Pte. Ltd. (current)

1958-02-20

Katsuji NISHIE

Director, Managing Executive Officer, General Manager of Sales Division (in charge of Korea and U.S.)

Apr 1996 Joined Aqua System Ltd. May 1999 Joined Tachibana Kogyo Co., Ltd. Oct 2000 Joined the Company Apr 2014 General Manager, Overseas Sales Department Jan 2017 Director, Nomura Micro Science Korea Co., Ltd. Apr 2018 Officer, General Manager, Korea Sales Department Jun 2019 Director (current); Deputy General Manager of Sales Division, General Manager, Korea Sales Department Jun 2020 Deputy General Manager of Sales Division (in charge of overseas) Jun 2021 Representative Director, Nomura Micro Science USA Ltd., Co. Apr 2022 Executive Officer Apr 2023 Managing Executive Officer (current); General Manager of Sales Division (overseas) and General Manager of Design Division Oct 2023 Director, Nomura Micro Science USA Ltd., Co. (current) Apr 2024 General Manager of Sales Division (overseas) Mar 2025 Representative Director, President, Nomura Micro Science Korea Co., Ltd. (current) Apr 2025 General Manager of Sales Division (in charge of Korea and U.S.) (current)

1972-06-01

Shiro NISHIMURA

Director, Executive Officer, General Manager of Administration Division, in charge of Materials Department

Apr 1985 Joined Hiroshima Toyopet Co., Ltd. Aug 1991 Joined the Company Apr 2015 General Manager, Materials Department Apr 2021 Officer Apr 2022 Executive Officer (current); in charge of Materials Department (current) Apr 2023 General Manager of Administration Division (current) Jun 2023 Director (current) Jun 2025 Director, A Group Plastic Co., Ltd. (current)

1964-08-22

Yoshinari INOUE

Director, Executive Officer, General Manager of Engineering Division and Deputy General Manager of Sales Division (in charge of Taiwan and Other Regions)

Apr 1996 Joined the Company Apr 2018 General Manager, China and Taiwan Sales Department Apr 2019 Officer, General Manager, China and Taiwan Sales Department, Overseas Sales Division Jul 2020 Officer, General Manager, Domestic Engineering Department Apr 2023 Executive Officer (current); Deputy General Manager, Domestic Engineering Division (domestic), General Manager, Domestic Engineering Department and SQE Department Oct 2023 Chairman, Nomura Micro Science Engineering Co., Ltd. (current) Apr 2024 General Manager of Engineering Division (current) Nov 2024 General Manager, Electrical & Instrumentation Department; Managing Director, Nomura Micro Science Singapore Pte. Ltd. (current) Apr 2025 Deputy General Manager of Sales Division (in charge of Taiwan and Other Regions) (current) Jun 2025 Director (current); General Manager, Detailed Design Department

1974-01-25

Hosaku SENDA

Director

Apr 1958 Joined Hokko Chemical Industry Co., Ltd. Nov 1973 Joined the Company Jun 1986 Director Jun 2000 Representative Director, President Jan 2006 Director, Shanghai Nomura Water Treatment Engineering Co., Ltd. (current) Feb 2006 Director, Nomura Micro Science USA Ltd., Co. (current) Apr 2009 Director, A Group Plastic Co., Ltd. Jan 2011 Director, Nomura Micro Science Engineering Co., Ltd. Jan 2014 Representative Director, Chairman, Nomura Micro Science Korea Co., Ltd. Apr 2014 Representative Director, Chairman and President Jun 2020 Director, Chairman Jun 2025 Director (current) Mar 2026 Director, Nomura Micro Science Korea Co., Ltd. (current)

1940-02-22

Shinobu SESHITA

Director (Full-time Audit and Supervisory Committee Member)

Apr 1979 Joined Yamaichi Securities Investment Trust Sales Co., Ltd. (now Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.) Apr 1998 Joined Olympic Co., Ltd. (now Olympic Group Corporation) Jun 2007 Joined the Company Apr 2011 General Manager, President's Office Apr 2014 General Manager, General Affairs Department Apr 2017 Officer Jun 2019 Officer, General Manager, General Affairs Department Apr 2023 Executive Officer, Deputy General Manager of Administration Division, in charge of General Affairs Department Jun 2023 Director (Audit and Supervisory Committee Member) (current)

1956-08-10

Shinsuke TANAKA

Director (Audit and Supervisory Committee Member)

Apr 1980 Joined Mitsubishi Heavy Industries, Ltd. Apr 2010 General Manager, Sales Department, Refrigeration & Air-Conditioning Division, Mitsubishi Heavy Industries, Ltd. Oct 2013 Director, Head of Heat Pump Sales Office, Mitsubishi Heavy Industries Thermal Systems, Ltd. Apr 2014 Director, General Manager, Northern Japan Branch, Mitsubishi Heavy Industries Thermal Systems, Ltd. Jun 2015 Executive Officer, General Manager, Hokkaido Branch, Mitsubishi Heavy Industries Thermal Systems, Ltd. May 2021 Resigned from Mitsubishi Heavy Industries Thermal Systems, Ltd. Jun 2021 Director (Audit and Supervisory Committee Member) (current)

1956-08-08

Yumiko NIIJIMA

Director (Audit and Supervisory Committee Member)

Dec 2009 Registered as attorney (Tokyo Bar Association) Jan 2010 Joined Yamada Law and Patent Office (now Toranomon Law and Economics Office Yamada Group) (current) Apr 2018 Outside Director (Audit and Supervisory Committee Member), Tanseisha Co., Ltd. Jun 2021 Director (Audit and Supervisory Committee Member) (current) Sep 2021 Registered as Certified Fraud Examiner Jun 2023 Outside Audit & Supervisory Board Member, Kyodo Printing Co., Ltd. (current)

1981-02-12

Hisae KATAOKA

Director (Audit and Supervisory Committee Member)

Apr 1981 Joined TOTO Ltd. Sep 1987 Joined Sanwa Totsumatsu Aoki Audit Corporation (now Deloitte Touche Tohmatsu LLC) Sep 1990 Registered as Certified Public Accountant Oct 2020 Head, Hisae Kataoka CPA Office (current) Dec 2020 Audit & Supervisory Board Member, ROMS Inc. (current) Feb 2021 Outside Audit & Supervisory Board Member, Finatext Holdings Ltd. (current) Apr 2021 Outside Audit & Supervisory Board Member, Startburn Inc. (current) Jan 2022 Representative Partner, Bloom Audit Corporation (current) Jun 2022 Director (Audit and Supervisory Committee Member) (current) Mar 2023 Outside Audit & Supervisory Board Member, SBI Biotech Co., Ltd. (current)

1959-01-29

Large Shareholding Reports