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Overview

Machinery

ORIENTAL CHAIN MFG. CO.,LTD.

Oriental Chain Mfg. Co., Ltd. is a Tokyo Stock Exchange Standard-listed manufacturer specializing in roller chains, conveyor chains, and related components, with a dominant domestic market position in the mini-chain segment. The company's flagship product, the OCMS10 pitch-3.175mm power transmission mini-chain, commands 100% domestic market share and is used in precision applications such as medical endoscopes. In addition to its chain business, the company manufactures small precision metal parts using Metal Injection Molding (MIM) technology, which serves as a second growth pillar, alongside a minor real estate leasing segment.

Market Cap

¥6.35B

US$40.5M

¥6.78B

US$43.2M

Stock¥3,465▲+0.73%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

18.8

LTM EV/EBIT

58.4

LTM PER

36.9

LTM PBR

2.2

Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+24.5%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Feb 17, 26Shareholding change by Godo Kaisha CD One

2Aug 13, 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

71%

29%

EquityD/E 0.42xDebt

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

CD-One G.K.

10.89%

Katayama Chain Co., Ltd.

9.09%

ORCHID PLUS PTE. LTD. (Standing Proxy: Akiko FUKUWA)

5.91%

Rakuten Securities, Inc. (Joint Account)

5.15%

Naoko HIGUCHI

4.82%

Kaga Holdings G.K.

4.60%

Tokai Tokyo Securities Co., Ltd.

4.27%

Shuhei KOMATSU

2.97%

Ucapi Co., Ltd.

2.86%

SBI SECURITIES Co., Ltd.

2.82%

Management

8 officers

Toshiyuki SUGIYAMA

Representative Director, President

Apr 1989 Joined Ichisei Securities Co., Ltd. Mar 1998 Joined Jeans Mate Co., Ltd. Feb 2007 Joined SFCG Co., Ltd. Oct 2012 Representative Partner, CD-One G.K. (current) Jun 2025 Representative Director, President of the Company (current)

1967-03-22

Osamu MANAKA

Director and Vice President

Apr 1990 Joined Katayama Chain Co., Ltd. Sep 2022 Director, Katayama Chain Co., Ltd. May 2025 Audit & Supervisory Board Member, Katayama Chain Co., Ltd. Jun 2025 Director of the Company Feb 2026 Director and Vice President of the Company (current)

1967-06-09

Toshiaki ISHIO

Managing Director, General Manager of Quality Assurance Office and General Manager of Production Engineering Department

Apr 1986 Joined the Company Apr 2011 General Manager, Quality Assurance Office of the Company Jun 2019 Director of the Company Jun 2020 Director (Full-time Audit and Supervisory Committee Member) of the Company Jun 2024 Managing Director of the Company (current) General Manager, Quality Assurance Office and General Manager, Production Engineering Department of the Company (current)

1963-05-13

Hiromitsu SANPO

Director

Apr 2017 Joined Boston Consulting Group K.K. Jul 2018 Consultant, Field Management Co., Ltd. Jul 2018 Product Manager, RenoSys Co., Ltd. Sep 2019 Director and COO, Minoru Co., Ltd. Oct 2021 Representative Director, Im Co., Ltd. (current) Dec 2025 Director of the Company (current)

1993-01-04

Mitsuo YONEMOTO

Director, Audit and Supervisory Committee Member

Jul 1995 Director and Vice President, TPS Institute Co., Ltd. (current) Sep 1998 Outside Director, Funai Electric Co., Ltd. Mar 2009 Outside Director, Sailor Pen Co., Ltd. Jun 2012 Audit & Supervisory Board Member of the Company Jun 2018 Director (Audit and Supervisory Committee Member) of the Company (current)

1939-03-18

Tomoyuki YANAGIMOTO

Director, Audit and Supervisory Committee Member

Jul 2002 Joined Accenture K.K. Jun 2013 Outside Director, E-Cash Co., Ltd. (now Pass Co., Ltd.) Jun 2013 Representative Director, President, Delish Co., Ltd. Sep 2015 Joined Don Quijote Holdings Co., Ltd. Mar 2018 Vice President, Sustainasy Co., Ltd. (current) Dec 2025 Director (Audit and Supervisory Committee Member) of the Company (current)

1977-11-11

Masaki ITO

Director, Audit and Supervisory Committee Member

Dec 2009 Registered as Attorney, Daiichi Tokyo Bar Association Jan 2012 Joined Matsushima Sogo Law Office Mar 2016 Established Ito Koike Law Office, Representative Attorney (current) Jun 2024 Outside Director (Audit and Supervisory Committee Member), Welldish Co., Ltd. (current) Dec 2025 Director (Audit and Supervisory Committee Member) of the Company (current)

1978-11-04

Tsubasa FUKUMOTO

Director, Audit and Supervisory Committee Member

Jan 2012 Joined Toyo Audit Corporation Apr 2016 Registered as Certified Public Accountant Jul 2016 Opened Tsubasa Fukumoto CPA Office (current) Feb 2018 Registered as Certified Tax Accountant Aug 2022 Representative Partner, Proud Tax Corporation (current) Dec 2025 Director (Audit and Supervisory Committee Member) of the Company (current)

1988-04-13

Large Shareholding Reports

Ucapi Co., Ltd.

2026-06-17

48.90%→48.90%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Annual report (as of 2026-03-31): 2.86%

Ucapi Co., Ltd.

2026-06-15

48.90%→48.90%

Annual report (as of 2026-03-31): 2.86%

Takahiro YAMASHITA

2026-06-09

2.76%→2.76%

Ucapi Co., Ltd.

2026-06-09

—

Annual report (as of 2026-03-31): 2.86%

Maximus LLC

2026-06-02

2.76%→2.53%

Maximus LLC

2026-05-27

2.76%

Takahiro YAMASHITA

2026-05-27

3.12%→2.76%

Ucapi Co., Ltd.

2026-05-22

48.90%→48.90%

Annual report (as of 2026-03-31): 2.86%

KAY LEO BROTHERS LIMITED

2026-05-21

25.95%→25.95%

KAY LEO BROTHERS LIMITED

2026-05-20

29.02%→25.95%

Takahiro YAMASHITA

2026-05-18

6.24%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Takahiro YAMASHITA

2026-05-18

6.24%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Maximus LLC

2026-05-18

3.12%

Ucapi Co., Ltd.

2026-05-18

—

Annual report (as of 2026-03-31): 2.86%

Maximus LLC

2026-05-14

6.24%

Ucapi Co., Ltd.

2026-05-13

50.55%→48.90%

Annual report (as of 2026-03-31): 2.86%

Takahiro YAMASHITA

2026-05-12

6.24%

KAY LEO BROTHERS LIMITED

2026-05-11

—

KAY LEO BROTHERS LIMITED

2026-05-11

29.02%→25.95%

Ucapi Co., Ltd.

2026-04-27

50.55%→50.55%

Annual report (as of 2026-03-31): 2.86%

Ucapi Co., Ltd.

2026-02-24

50.55%→50.55%

Annual report (as of 2026-03-31): 2.86%

Ucapi Co., Ltd.

2026-02-05

50.55%→50.55%

Annual report (as of 2026-03-31): 2.86%

Ucapi Co., Ltd.

2026-01-28

50.55%

Annual report (as of 2026-03-31): 2.86%

KAY LEO BROTHERS LIMITED

2026-01-28

29.02%

ORCHID PLUS PTE. LTD.

2026-01-09

6.13%

CD One LLC (Representative Member: Toshiyuki SUGIYAMA)

2026-01-05

17.43%→11.29%

Disclosures

No disclosures

Primary Source Filings

EDINETAmended

2026-08-28

Amended Annual Securities Report

Period: Apr 2025 – Mar 2026

ORIENTAL CHAIN MFG. CO.,LTD.

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ORIENTAL CHAIN MFG. CO.,LTD.

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