1937 |
Established as Osaka Special Steel Manufacturing |
|
1950 |
Incorporated as Osaka Special Steel Manufacturing Co. |
|
1951 |
Commenced research into manufacture of titanium metal |
|
1952 |
Built Japan’s first titanium pilot plant Equity stake taken by Sumitomo Metal Industries, Ltd. Changed the trade name to Osaka Titanium Co., Ltd. |
Personnel concerned show their delight at the first titanium sponge manufactured in the pilot plant |
1953 |
Equity stake taken by Kobe Steel, Ltd. |
|
1954 |
Construction completed for titanium plant with monthly capacity of 25 tons |
A test piece made from the batch described above |
1957 |
Commenced polycrystalline silicon research and development |
|
1960 |
Started production of polycrystalline silicon |
Reactor for manufacturing clustered polycrystalline silicon Silicon polycrystal manufactured by the reactor described above |
1961 |
Completed the magnesium chloride electrolysis plant |
Inside the electrolysis plant |
1967 |
Completed the first phase of the second electrolysis plant Awarded the Okouchi Memorial Production Prize for titanium manufacturing technology Completed 14 silos to hold raw materials for titanium |
|
1975 |
Completed 80,000 ampere electrolysis cell |
First 80,000-ampere cell installed (Electrolysis cell) |
1977 |
Completed reduction/separation furnaces (2 ton batch) |
Liquid chloride furnace |
1978 |
Commenced operation of Integrated titanium U-furnace (5 ton batch) |
Developers with a 4-ton batch manufactured in the first integrated furnace to be installed |
1980 |
Completed the new electrolysis cell (multi-polar cell method) |
|
1981 |
Completed the titanium ingot plant |
Completed titanium melting plant |
1982 |
Completed the new titanium sponge plant and started production in the new products plant |
Newly completed titanium sponge plant (3S plant) |
1984 |
Completed the first phase of the polycrystalline silicon plant |
|
1992 |
Merged with Kyushu Electronic Metal Co., Ltd. |
|
1993 |
Changed the company name to Sumitomo Sitix Corporation |
|
1996 |
Amagasaki Plant received ISO9002 certification |
|
1997 |
Established Sitix of Amagasaki, Inc., a 100% subsidiary of Sumitomo to Sumitomo Titanium
Corporation |
|
1999 |
Changed the trade name to Sumitomo Titanium Corporation |
|
2002 |
Completed capacity increase construction work at titanium sponge plant (increased annual production
capacity from 15,000 tons to 18,000 tons) |
|
2005 |
Transferred from the 2nd section to the 1st section of Tokyo Stock Exchange |
|
2006 |
Increased annual production capacity for titanium sponge from 18,000 tons to 24,000 tons |
|
2007 |
Increased annual production capacity for polycrystalline silicon from 900 tons to 1,300 tons and started
shipments |
|
2008 |
Purchased industrial site in the city of Kishiwada, Osaka |
|
2009 |
Commenced operations at the Kishiwada Works |
|
2011 |
Completed the new polycrystalline silicon plant at the Kishiwada Works, boosting annual production
capacity to 3,600 tons |
|
2012 |
Reached cumulative titanium sponge production of 500,000 tons |
|
2013 |
Concentrated production at the Kishiwada Works for the polycrystalline silicon business (annual production capacity modified to 3,000 tons) |
|
2014 |
Concentrated production at the Amagasaki Plant for the titanium melting business (annual production capacity modified to 6,000 tons) |
|
2016 |
Reached cumulative titanium sponge production of 600,000 tons |
|
2018 |
Terminated production of polycrystalline silicon |