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Toyo Tanso Co Ltd
16F, Osaka Umeda Twin Towers South, 1-13
Phone: +81 5030974950p:+81 5030974950 OSAKA-SHI, OSK  530-0001  Japan Ticker: 53105310
Business Summary
TOYO TANSO CO., LTD. is a Japan-based company engaged in the manufacture, processing, and sale of carbon products for high-performance applications using isotropic graphite materials as its core raw material. The Company operates through four geographic segments, including Japan, the United States, Europe, and Asia. Its special graphite products include crucibles and heaters for single-crystal silicon pulling furnaces, susceptors for metal-organic chemical vapor deposition (MOCVD) equipment, boats for liquid-phase epitaxy (LPE) systems, crucibles and heaters for single-crystal and polycrystalline silicon production furnaces, electrical discharge machining (EDM) electrodes and others. Its general carbon products include bearings and sealing materials for pumps and compressors, automotive components and others. Its composite materials and other products include susceptors for silicon epitaxy (Si-Epi) equipment, first-wall materials for fusion reactors, and others.
(Source: 6-K)

Scores and Ratings
FRISK®
Score		 Z''
Score		 PAYCE®
Score		 DBT
Index		 Moody's
Rating		 Fitch
Rating		 DBRS
Rating
YesYes-Yes---

Financials, News and Filings
Latest
Statement		 Last
Audit
News		 SEC
Filings		 Bankruptcy
Filings		 Suit &
Judgment
Filings		 Tax
Lien
Filings
6/30/202612/31/2025Yes----

Industries
SIC Code Description
3624 Carbon and graphite products
3253 Ceramic wall and floor tile
3433 Heating equipment, except electric and warm air furnaces

Officers and Directors

Title
Name
Age		 Title
Date		 Start
Date
Chairman of the Management Board, Chairman of the Board, President, Executive President, Chief Exec NaotakaKondo 68 1/1/2026 3/1/1994
Senior Managing Executive Officer, Chief Director of Business Planning , Chairman and President of TatsuroHamada 68 12/1/2024 9/1/2017
Managing Executive Officer, Chief Director of Global Sales AkiraSasaki 3/28/2024 3/30/2017
10 additional Officers and Directors records available in full report.

Business Names
Business Name
5310
TOYO TANSO CO., LTD.

General Information
Number of Employees: 1,678 (As of 12/31/2025)
Outstanding Shares: 20,972,145 (As of 6/30/2026)
Shareholders: 13,961
Stock Exchange: TYO
Fax Number: +81 5017960784


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Thursday, September 24, 2026