| 1953 |
Established as a joint venture among Japan Mining Co., Ltd. (now JX Nippon Mining & Metals Corporation), the excellent titanium refining engineers Ishizuka father and son (founders of Osaka Special Steel Works Co., Ltd. (now Osaka Titanium Technologies Co., Ltd.)), and Daiichi Bussan Co., Ltd. (now Mitsui & Co., Ltd.), which was paying attention to the future prospects of titanium. |
| 1954 |
Built a factory in Chigasaki City, Kanagawa Prefecture: Started production of sponge titanium at the first plant (capacity 240t/year): Started exports to the U.S. |
| 1955 |
Listed shares on the Tokyo Stock Exchange over-the-counter market |
| 1956 |
Expanded equipment to 1,800t/year of sponge titanium |
| 1960 |
1960: Started commercial production of titanium dioxide at the first melting plant (capacity 120t/year) |
| 1960 |
Start of production of titanium ingots at the Melting Plant 1 (Capacity 120t/year) |
| 1961 |
Listed shares on the Second Section of the Tokyo Stock Exchange |
| 1965 |
Expanded equipment to 2,400t/year of sponge titanium: Completed titanium tetrachloride catalyst manufacturing equipment (capacity 36t/year) |
| 1966 |
Sponge titanium received JIS display approval |
| 1968 |
Expanded equipment to 1,200t/year of titanium ingots |
| 1970 |
1970: Started commercial production of high-purity titanium dioxide |
| 1970 |
Commercial production of high-purity titanium dioxide started |
| 1971 |
Expanded equipment to 5,400t/year of sponge titanium |
| 1977 |
Completed export of titanium tetrachloride catalyst plant to China |
| 1980 |
Equipment capacity of sponge titanium 12,000t/year |
| 1985 |
Equipment capacity of titanium ingots 7,800t/year |
| 1986 |
Completed manufacturing equipment for highly active catalyst THC |
| 1987 |
Established Toho Tech Co., Ltd. |
| 1989 |
Equipment capacity of high-purity titanium dioxide 2,040t/year |
| 1990 |
Acquired Sanko Diamond Industries Co., Ltd.: Signed convertible bond purchase agreement with U.S. TIMET Inc. |
| 1993 |
High-activity catalyst THC equipment capacity 85t/year |
| 1996 |
ISO 9002 registration (Manufacture and sale of catalysts for propylene polymerization) |
| 1997 |
High-purity titanium dioxide equipment capacity 2,160t/year |
| 1998 |
ISO 9002 scope expansion (Titanium tetrachloride, sponge titanium, titanium ingots, high-purity titanium dioxide, etc.): ISO 14001 registration (Chigasaki factory all departments): Completion of EB ingot manufacturing equipment (Hitachi factory) (capacity 2,640t/year): Establishment of East Titanium Catalyst Co., Ltd. |
| 1999 |
ISO 9001 scope expansion (Catalysts for propylene polymerization, titanium tetrachloride, sponge titanium, high-purity titanium, titanium ingots, high-purity titanium dioxide, titanium-based powders and calcined powders): Completion of superfine nickel manufacturing equipment (capacity 24t/year) |
| 2000 |
ISO 9001 scope expansion (Design, development, manufacture, and sale of nickel powders): Changed name from East Titanium Catalyst Co., Ltd. to Toho Catalyst Co., Ltd. and transferred catalyst business to the company |
| 2003 |
Sponge titanium equipment capacity 13,000t/year: Acquired JIS Q 9100 certification (Design, development, manufacture, and sale of sponge titanium for aircraft) |
| 2005 |
Sponge titanium equipment capacity 15,000t/year: Sold Sanko Diamond Industries Co., Ltd. |
| 2006 |
Designated on the First Section of the Tokyo Stock Exchange |
| 2007 |
Established corporate brand mark: Sponge titanium equipment capacity 16,000t/year |
| 2007 |
Established corporate brand mark: Sponge titanium capacity 16,000t/year: Corporate brand mark |
| 2008 |
Absorbed and merged with Toho Catalyst Co., Ltd.: Completed Yahata factory (EB ingot manufacturing) (capacity 10,000t/year): Total ingot production capacity 19,000t/year |
| 2009 |
Established Toho Titanium America Co., Ltd.: Established a joint venture company, Toho Material Co., Ltd. (20% invested by Nakajima Sangyo Co., Ltd., 10% by Morimura Bros., Ltd., 70% by our company): Established Toho Titanium Europe Co., Ltd. |
| 2010 |
Sponge titanium equipment capacity 26,400t/year: Began operation of Wakamatsu sponge factory |
| 2011 |
Started mass production of direct casting titanium slabs (DC Slab®) |
| 2012 |
Sponge titanium equipment capacity 28,800t/year: Completed capacity increase at Wakamatsu sponge factory: Wakamatsu factory's sponge titanium obtained aircraft certification: Sponge titanium equipment capacity 25,200t/year (building an efficient production system at Chigasaki factory) |
| 2012 |
Sponge titanium capacity 28,800t/year: Wakamatsu Sponge Plant production capacity expansion completed |
| 2013 |
Wakamatsu factory's sponge titanium obtained aircraft certification: Sponge titanium equipment capacity 25,200t/year (building an efficient production system at Chigasaki factory) |
| 2014 |
Completed second EB melting equipment at Yahata factory: Invested in Nippon Steel & Sumitomo Metal Corporation Naoetsu Titanium Co., Ltd. (currently Nippon Steel Naoetsu Titanium Co., Ltd.): (Post-investment shareholding ratio: Nippon Steel & Sumitomo Metal Corporation 66%, our company 34%) |
| 2016 |
Established Advanced Metal Industries Cluster and Toho Titanium Metal Company Limited (a joint venture with 65% investment by Advanced Metal Industries Cluster and 35% by our company) in the Kingdom of Saudi Arabia |
| 2017 |
Completed sponge titanium manufacturing plant in the Kingdom of Saudi Arabia |
| 2019 |
Start of sponge titanium manufacturing plant operation in the Kingdom of Saudi Arabia |
| 2020 |
Establishment of TOHOWORLD Co., Ltd.: Relocated headquarters to Yokohama City, Kanagawa Prefecture |
| 2021 |
Completion of Wakamatsu Factory Nickel Powder New Plant (Plant 4) |
| 2022 |
Designated on the Tokyo Stock Exchange Prime Market |
| 2026 |
Delisting due to full acquisition by JX Metals Corporation |
