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ISHIHARA INDUSTRIAL CO., LTD.

石原産業株式会社ISHIHARA SANGYO KAISHA, LTD.AliasIshihara Sangyo Kaisha, Ltd.Alias
Ticker
Listed market
TYO
Country
Japan
Employees (consolidated)
1,813
Related companies
42
§01

Basic information

BASIC
Head office
1-3-15 Edobori, Nishi-ku, Osaka City
Chief executive
Hiroshi Okubo
Capital
43,400,000,000  (434 100 million)
Employees (non-consolidated)
1,130 people
Employees (consolidated)
1,813 people
Start date
1949-06-01
End date
§02

Websites

1 DOMAINS
§03

Business

6
PesticidesEnvironmental ProductsTitanium dioxide productsFunctional MaterialsVeterinary pharmaceuticalsOrganic Intermediates
§04

Related companies

42 COMPANIES
Company name Group Parent Subsidiary Customer Supplier Alliance Bank Shareholder
Ishihara Biosciences Inc.
Group Subsidiary
ISK ANIMAL HEALTH, LLC
Group Subsidiary
AVC CHEMICAL CORP.
Group
ISK AMERICAS INCORPORATED
Group Subsidiary
ISK BIOSCIENCES (THAILAND) LTD.
Group
ISK BIOSCIENCES DO BRASIL DEFENSIVOS AGRICOLAS LTDA.
Group
ISK BIOSCIENCES EUROPE N.V.
Group Subsidiary
ISK BIOSCIENCES INDIA PVT. LTD.
Group Subsidiary
ISK TAIWAN CO., LTD.
Group
SUMMIT AGRO USA, LLC
Group
Taiwan Ishihara Industries Co., Ltd.
Group Subsidiary
Ishihara (Shanghai) Chemicals Co., Ltd.
Group
Ishihara Engineering Partners Co., Ltd.
Group Subsidiary
Ishihara Techno Co., Ltd.
Group Subsidiary
Ishihara Oxygen Co., Ltd.
Group
Ishihara Mining Co., Ltd.
Group
Korean Ishihara Industries Co., Ltd.
Group
ISHIHARA CORPORATION
Group Subsidiary
ISK AMERICAS
Group Subsidiary
ISK BIOCIDES, INC.
Group Subsidiary
ISK BIOSCIENCES CORPORATION
Group Subsidiary
ISK BIOSCIENCES
Group Subsidiary
Hokusan Co., Ltd.
Group
Tōa Synthetic Co., Ltd.
Group Shareholder
MF Material Co., Ltd.
Group Subsidiary
CERTIS BELCHIM B.V.
Group
Certis Belchim B.V.
Group
Fuji Titanium Industry Co., Ltd.
Group Subsidiary
ISK BIOSCIENCES KOREA LTD.
Group
青色コチョウラン
Group Customer
SpeedFam Inc.
Group
ISK BIOSCIENCES, S.A. DE C.V.
Group Subsidiary
Zhejiang Shiyuan Jinniu Chemical Co., Ltd.
Group
Mitsui & Co., Ltd. (Head Office)
Customer Shareholder
株式会社パノクエル
Customer
Blenda Corporation
Customer
DFA INTL SMALL CAP VALUE PORTFOLIO
Shareholder
ISK交友会
Shareholder
JP Morgan Securities Co., Ltd.
Bank
U.P.L Japan LLC
Shareholder
Japan Master Trust Bank Ltd.
Shareholder
Japan Custody Bank Inc.
Bank
Names without a link are companies not yet registered in OpenBizGraph
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Network

NETWORK
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§06

History

4 EVENTS

Founded: September 10, 1920 (Taisho 9)Sources

FoundedSources

Established: June 1, 1949 (Showa 24)Sources

EstablishedSources

§07

News

74 ARTICLES

Notice of Closure for Company Founding AnniversarySources

Ishihara Sangyo Kaisha, Ltd. announced that it will be closed on Thursday, September 10, its company founding anniversary. The company apologizes for any inconvenience and appreciates customers’ understanding.

Notice of suspension of inquiries during Golden WeekSources

Ishihara Sangyo Co., Ltd. will suspend the reception of inquiries through the contact form from April 28 to May 7, 2026. Emergency contact information is also provided.

Notice of Cancellation of Investor Briefing for Individual InvestorsSources

Ishihara Industries Co., Ltd. announced the cancellation of the investor briefing for individual investors scheduled for November 26, due to unauthorized access and data leakage in the system of Nomura Investor Relations Co., Ltd. The briefing materials will be released on the company website starting November 27. The second quarter IR briefing for institutional investors will be held as scheduled on November 16.

Ishihara Industries Co., Ltd. 2027 Q2 Financial Summary (Japanese GAAP)Sources

Ishihara Industries Co., Ltd. announced its consolidated performance for the second quarter of fiscal 2027 (April 1, 2026 – September 30, 2026). Revenue was 73,571 million yen, a 3.8% decline YoY; operating profit was 3,080 million yen, down 58.2%; ordinary profit was 3,854 million yen, down 54.7%. Net income for the interim period fell sharply YoY to a loss of 999 million yen.

2027 Q2 Consolidated Earnings Forecast vs Actual ResultsSources

Ishihara Industries' sales for the second quarter of the fiscal year ending March 2027 were 73.571 billion yen, down from the forecast of 75.000 billion yen. Operating profit fell from 3.100 billion yen to 3.080 billion yen. Ordinary profit increased from 3.800 billion yen to 3.854 billion yen, while the net profit attributable to shareholders of the parent company dropped sharply from 700 million yen to -999 million yen.

Ishihara Industries to Hold Q2 IR Presentation and Individual Investor Briefing in November 2026Sources

Ishihara Industries Co., Ltd. will hold a Q2 IR presentation for institutional investors on November 16, 2026, and an individual investor briefing for MIR@I members of Nomura Investor Relations on November 26. Both sessions will be streamed live online, and the materials will be posted on the company’s website after the events.

Ishihara Industries Exhibits at the 40th NePCON JapanSources

Ishihara Industries Co., Ltd. will exhibit at the 40th NePCON Japan – Electronics Development & Implementation Exhibition – held at Tokyo Big Sight from January 21 to 23, 2026. At booth E36-34, we will showcase next‑generation material solutions for power semiconductors, printed electronics, and optical devices, welcoming visitors.

Ishihara Industries Announces Advertisement Placement on the Front Page of the Yomiuri ShimbunSources

Ishihara Industries Co., Ltd. reported that it placed an advertisement on the front page of the Yomiuri Shimbun dated January 16, 2026. From April 2025 to March 2026, the company plans to rotate advertisements on a monthly basis in each newspaper.

40th Neupcon Japan - Electronics Development & Implementation Exhibition: Thank You for VisitingSources

We sincerely appreciate your attendance at the RX Japan-sponsored exhibition held from January 21 to 23, 2026, and for stopping by our booth. The exhibition showcased our material solutions, and further details are available on our company website. If you have any questions or concerns, please feel free to contact our information desk.

Agreement on "Corporate Forest Creation"Sources

On February 6, 2026, Ishihara Industries signed an agreement on "Corporate Forest Creation Activities" with Hyogo Prefecture, Ono City, and the Hyogo Prefecture Green Promotion Association. In the "ISK Forest" (0.9 hectares) in Ono City, Hyogo Prefecture, employees will collaborate with local forest volunteers from April 2026 for five years to engage in activities such as logging and underbrush removal. Through these activities, they aim to enhance forest functions such as carbon dioxide absorption and biodiversity conservation.

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Public records

GOV
National Tax Agency basic information9120001048976
Source: National Tax Agency Corporate Number Publication Site, basic three itemsSources
Trade name
石原産業株式会社
Trade name (kana)
イシハラサンギョウ
Name in English
Corporation type
301
Address
〒550-0002 大阪府大阪市西区江戸堀1丁目3番15号
Postal code
5500002
Prefecture code
27
City code
106
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2018-10-18
Change date
2018-10-10
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
平成30年10月1日三重県四日市市石原町2番地四日市エネルギーサービス株式会社(1190001018360)を合併
Latest record
1
Excluded from search
0
Processing type
71
Correction type
0
Trade name image ID
Address image ID
Sequence number
4412590
METI gBizINFO9120001048976
Source: gBizINFO (Ministry of Economy, Trade and Industry)Sources
Corporate number
9120001048976
Trade name
石原産業株式会社
Trade name (kana)
イシハラサンギョウ
Trade name (alphabet)
Registry closure date
Reason for registry closure
Registered address
大阪府大阪市西区江戸堀1丁目3番15号
Postal code
5500002
Prefecture
大阪府
Prefecture code
27
City or district
大阪市西区
City code
106
Street address
江戸堀1丁目3番15号
Organisation type
301
Processing type
71
Correction type
0
Status
Representative
代表取締役社長  大 久 保 浩
Capital
43420000000
Employees
1353
Employees (male)
1088
Employees (female)
265
Business summary
酸化チタン、機能材料、環境商品、農薬、医薬、動物用医薬品、有機中間体、化成品の製造
Website URL
http://www.iskweb.co.jp/
Year founded
Business category
E:製造業
Date established
1949-06-01
Unified government qualification - grade
||A|
Unified government qualification - business items
315
Update date
2018-10-18
Key information
9120001048976
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Sources & updates

SOURCES
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