Overview
Machinery

A-ONE SEIMITSU INC.

A-One Seimitsu is a Japan-based specialist manufacturer of precision tools for small automatic lathes and machining centers, operating across three segments: collet chucks and guide bushes for CNC automatic lathes, regrinding and custom manufacturing of cutting tools, and design and manufacture of cams for cam-type automatic lathes. The company differentiates itself through over 50 years of accumulated expertise, in-house integrated production, high precision quality, competitive pricing, and short lead times. Its products are consumable industrial tools sold on a make-to-order basis, enabling recurring revenue from repeat orders across a broad manufacturing customer base.

Market Cap
¥9.32B
US$59.4M
EV
¥2.89B
US$18.4M
Stock¥1,850▼-0.96%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
8.4
x
LTM EV/EBIT
12.3
x
LTM PER
46.6
x
LTM PBR
1.3
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-17.4%pt
100
Oct 24, 25 – Oct 23, 26StockTOPIX
MC → EV Bridge
9.32BUS$59.4MMarket Cap0.00BUS$0.01M+ Debt4.10BUS$26.2M− Cash2.33BUS$14.9M− Inv. Sec.2.89BUS$18.4MEV
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Performance & Balance
Revenue 5Y (¥B)
1.87US$11.9M'22/61.76US$11.2M'23/61.60US$10.2M'24/61.59US$10.1M'25/61.68US$10.7M'26/6
EBITDA 5Y (¥B)
0.59US$3.75M'22/60.44US$2.78M'23/60.32US$2.02M'24/60.27US$1.70M'25/60.34US$2.18M'26/6
Net Income 5Y (¥B)
0.31US$1.98M'22/60.19US$1.22M'23/60.12US$0.77M'24/6-0.22-US$1.41M'25/60.20US$1.28M'26/6
Capital Structure
100%
EquityD/E 0.00xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
7.11US$45.4M0.00US$0.03M'22/67.03US$44.9M0.00US$0.02M'23/66.79US$43.3M0.00US$0.02M'24/66.24US$39.8M0.00US$0.01M'25/66.44US$41.1M0.00US$0.01M'26/6
Shareholders
Top 10 hold 36.5%
1
Chichi Co., Ltd.
25.18%
2
Custody Bank of Japan, Ltd. (Trust Account)
4.03%
3
Wataru HIDA
1.98%
4
Takeshi OSHIMA
1.11%
5
Itsuo OHASHI
0.86%
6
Akio TAKEUCHI
0.84%
7
Noriko TAKEUCHI
0.70%
8
Kazuya YOKOYAMA
0.63%
9
Yoshito YUBUNE
0.57%
10
Yoichi AYAHA
0.55%
Management
8 officers
Tetsuya HAYASHI
Representative Director, President
Apr 1989 Joined Nomura Securities Co., Ltd. Jan 2004 Joined the Company Jul 2005 Head of West Japan Sales Office Sep 2005 Appointed Director Oct 2007 Appointed Representative Director, President (current)
1965-06-10
Nobuyuki KANEMARU
Managing Director, in charge of Cutting Tools Division
May 1988 Joined E-One Precision Co., Ltd. (now Chichi Co., Ltd.) Jul 1990 Joined the Company Dec 2000 Leader, Cutting Tools Division Sep 2007 Appointed Director, in charge of Cutting Tools Division (current) Oct 2011 Appointed Managing Director (current)
1968-12-24
Masakazu NAKAZAWA
Director, Plant Manager, in charge of Collet Chuck Division
Apr 1990 Joined E-One Precision Co., Ltd. (now Chichi Co., Ltd.) Jul 1990 Joined the Company Oct 2021 Process Leader, Collet Chuck Division May 2022 Appointed Plant Manager; in charge of Collet Chuck Division (current) Sep 2024 Appointed Director (current)
1972-02-23
Akiko MATSUMOTO
Director, General Manager of Administration Division
Nov 2006 Joined the Company May 2018 Leader, Management Group May 2022 General Manager, Administration Division (current) Sep 2024 Appointed Director (current)
1970-12-04
Jason Orlando BELLAMY
Director
Jun 1986 Joined Morgan Stanley International Ltd., London Branch Mar 1988 Joined Daiwa Securities Co., Ltd., London subsidiary and Tokyo Head Office Oct 1989 Assistant Vice President, CS First Boston (Japan) Ltd. Mar 1991 Assistant Director, UBS Securities Ltd. Nov 1992 Deputy Representative, Tokyo Representative Office, Crosby Securities Ltd. Nov 1994 Head of Tokyo Branch and Head of Asian Equities, CA Indosuez W.I. Carr Securities (Japan) Ltd. May 1998 Vice President, Honolulu Head Office, Bank of Hawaii Nov 2002 Chief Operating Officer, Bellamy Fund Management LLC, Hawaii, USA Apr 2003 Manager and Chief Compliance Officer, Myojo Asset Management Hawaii LLC Jul 2009 Established Bellamy Co., Ltd.; appointed Representative Director, President (current); business consulting and investment business Mar 2011 Investment Director, Standard Life Investments Oct 2014 Part-time, Tokyo Head Office, Sumitomo Mitsui Trust Bank, Limited Apr 2019 Part-time, Tokyo Head Office, Sumitomo Mitsui Trust Asset Management Co., Ltd. (current) Aug 2019 Consultant, First Trust Advisors L.P. (current) Apr 2020 Consultant, Asset Value Investors Ltd. (current) Sep 2024 Appointed Director of the Company (current) Jun 2026 Appointed Outside Director, Synchro Food Co., Ltd. (current)
1960-06-01
Nobuo KOBAYASHI
Director, Audit and Supervisory Committee Member
Apr 1974 Joined Hayashi Law Office Apr 1982 Joined Sanko Sogo Setsubi Co., Ltd. Apr 1990 Appointed Director of the same company Apr 2005 Appointed Representative Director of the same company (current) Sep 2021 Appointed Director, Audit and Supervisory Committee Member of the Company (current)
1949-05-05
Natsuko INAGAKI
Director, Audit and Supervisory Committee Member
Apr 1994 Joined Chuo Audit Corporation Jul 2007 Joined ShinNihon Audit Corporation (now EY ShinNihon LLC) Jul 2017 Joined Tokyo National Tax Tribunal Jul 2021 Opened Inagaki Certified Public Accountant Office (current) Nov 2021 Opened Inagaki Law and Accounting Office Apr 2022 Member, Tax Special Committee, Tokyo Bar Association (current) Jul 2023 Member, Tax Committee, Tokyo Chapter, Japanese Institute of Certified Public Accountants (current) Apr 2025 Vice Chair, Tax Special Committee, Tokyo Bar Association (current) Sep 2025 Appointed Supervisory Officer, Activia Properties Inc. (current) Sep 2025 Appointed Director, Audit and Supervisory Committee Member of the Company (current) Apr 2026 Civil Mediation Commissioner, Hachioji Summary Court (current)
1971-08-03
Akio TAKEUCHI
Director, Audit and Supervisory Committee Member
Jul 2013 Registered as Attorney-at-Law Jul 2013 Joined Kidonashi Nagahara Law Office Feb 2014 Opened Takeuchi Law Office in Kanazawa City May 2015 Opened Akio Takeuchi Law Office (current) Dec 2016 Registered as Certified Tax Accountant (Kinki Tax Accountants' Association) Sep 2025 Appointed Director, Audit and Supervisory Committee Member of the Company (current)
1974-03-05
Large Shareholding Reports
Asset Value Investors Limited
2024-06-05
6.01%→5.00%
Asset Value Investors Limited
2024-05-27
7.02%→6.01%
Asset Value Investors Limited
2024-05-14
8.04%→7.02%
Asset Value Investors Limited
2024-04-25
9.09%→8.04%
Asset Value Investors Limited
2024-04-04
10.16%→9.09%
Asset Value Investors Limited
2024-03-15
8.78%→10.16%
Disclosures
No disclosures
Primary Source Filings
EDINET
2026-09-28
Annual Securities Report
Period: Jul 2025 – Jun 2026
TDnet
2026-08-10
Full-Year Earnings Flash
FY ending Jun 2026
TDnet
2026-05-08
Q3 Earnings Flash
FY ending Jun 2026
EDINET
2026-02-13
Semi-Annual Securities Report
Period: Jul 2025 – Dec 2025
TDnet
2025-11-07
Q1 Earnings Flash
FY ending Jun 2026
EDINET
2025-09-29
Annual Securities Report
Period: Jul 2024 – Jun 2025
TDnet
2025-05-09
Q3 Earnings Flash
FY ending Jun 2025
EDINET
2025-02-13
Semi-Annual Securities Report
Period: Jul 2024 – Dec 2024
TDnet
2024-11-08
Q1 Earnings Flash
FY ending Jun 2025
EDINET
2024-09-24
Annual Securities Report
Period: Jul 2023 – Jun 2024
EDINET
2024-06-05
Large Shareholding Report
EDINET
2024-05-27
Large Shareholding Report
EDINET
2024-05-15
Quarterly Securities Report
Period: Jan 2024 – Mar 2024
EDINET
2024-05-14
Large Shareholding Report
EDINET
2024-04-25
Large Shareholding Report
EDINET
2024-04-04
Large Shareholding Report
EDINET
2024-03-15
Large Shareholding Report
EDINET
2024-02-14
Quarterly Securities Report
Period: Oct 2023 – Dec 2023
EDINET
2023-11-13
Quarterly Securities Report
Period: Jul 2023 – Sep 2023
EDINET
2023-09-25
Annual Securities Report
Period: Jul 2022 – Jun 2023
EDINET
2023-05-12
Quarterly Securities Report
Period: Jan 2023 – Mar 2023
EDINET
2023-02-13
Quarterly Securities Report
Period: Oct 2022 – Dec 2022
EDINET
2022-11-14
Quarterly Securities Report
EDINET
2022-09-26
Annual Securities Report
EDINET
2022-05-13
Quarterly Securities Report
EDINET
2022-02-14
Quarterly Securities Report
EDINET
2021-11-12
Quarterly Securities Report
EDINET
2021-09-27
Annual Securities Report
EDINET
2021-05-14
Quarterly Securities Report
EDINETAmended
2021-02-17
Amended Quarterly Securities Report
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