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Company Outline/History

About us

Trade name Sumitomo Precision Products Co., Ltd.
Establishment January 1961 (Showa 36)
capital 10,311 million yen
president Tetsuya Tsurumaru
employee Consolidated: 1,701 people Non-consolidated: 1,312 people *As of March 31, 2025
Shareholders Sumitomo Corporation 100%
Fiscal year end March 31
Factory site area 136,844 m²
Head office location
1-10 Fuso-cho, Amagasaki, Hyogo, Japan Prefecture, 660-0891
Map here
Main business
  • Aviation and Aerospace
  • Heat exchanger
  • Hydraulic Control
  • Ozone Generator
  • MEMS and Semiconductor Manufacturing Equipment Business
  • MEMS devices
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History

1961年 Sumitomo Metal Industries, Ltd. (currently Nippon Steel Corporation) inherited the aircraft equipment division.
Established as Precision Co., Ltd.
1963年 Started manufacturing large-scale heat exchangers for low-temperature industrial use
1967年 Started manufacturing large propellers for patrol aircraft
1969年 Started manufacturing liquefied natural gas vaporizers
1970年 Shares listed on both the Tokyo and Osaka stock exchanges
1974年 Started manufacturing ozone generators
1975年 Obtained US ASME standard for heat exchanger manufacturing
1977年 Shiga (hydraulic equipment) factory completed
1982年 Shiga (aircraft equipment) factory completed
1986年 Entering the vacuum equipment field and opening up new business areas for semiconductor manufacturing equipment
1988年 Developed an ultra-high concentration ozonizer that achieves the world's highest level of ozone generation concentration
Started development and manufacturing of space equipment
1989年 New head office building completed
1990年 Started manufacturing stainless steel heat exchangers for high-temperature applications
1993年 Wakayama (heat exchanger) factory completed
1994年 Obtained ISO9001 certification for low-temperature industrial heat exchangers
1995年 Acquired UK-based Surface Technology Systems plc (STS)
1996年 Hydraulic Engineering Center opened
1997年 Obtained ISO9001 certification for commercial aircraft equipment
1999年 Established a joint venture with BAe in the UK for the manufacture and sale of motion sensors
Head office and factory obtain ISO14001 certification
2000年 Established Sumitomo Precision USA, Inc. (US subsidiary, Texas)
2001年 Started manufacturing plasma processing equipment at the head office factory
2004年 Established Ningbo Seismic Pressure Industrial Co., Ltd. in China through joint investment with Ningbo the Haitian Group Co., Ltd.
2009年 Acquired some assets and business of Aviza Technology Inc. in the US, established SPP Process Technology Systems Ltd. (SPTS) in the UK, and merged with STS
2010年 Precision Technology (Shanghai) Co., Ltd. is established.
2011年 Transferred UK SPTS and established a joint venture, SPP Technologies Co., Ltd. Ltd. with SPTS
2014年 SPP Nagasaki Engineering Co., Ltd. established
2019年 Established SPP Aerospace Service Inc.
2023年 Delisted from the Tokyo Stock Exchange

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