| 1960 |
|
| 1960 |
Establishment of Union Chemical Research Institute Co., Ltd. |
| 1960 |
Established: Showa 35 (1960) |
| 1970 |
|
| 1970 |
Construction of new headquarters building |
| 1971 |
|
| 1971 |
Renaming to Union Tool Co., Ltd. |
| 1976 |
Dedicated factory for cross roller guides |
| 1976 |
Old Nagaoka Factory established as dedicated factory for cross roller guides |
| 1979 |
|
| 1979 |
Construction and relocation of Nagaoka First Factory |
| 1980 |
|
| 1980 |
Expansion of Nagaoka First Factory |
| 1981 |
|
| 1981 |
米国現地法人MEGATOOL INC. 設立 |
| 1982 |
|
| 1982 |
Establishment of Osaka Sales Office |
| 1983 |
|
| 1983 |
Expansion of headquarters building and opening of Nagaoka Sales Office |
| 1985 |
Construction of Nagaoka Second Factory, establishment of Taiwan Union Tool Corp. |
| 1985 |
Construction of Nagaoka Second Factory |
| 1985 |
Establishment of Taiwan Union Tool Corp. |
| 1986 |
Establishment of Union Tool Europe S.A. |
| 1986 |
Establishment of Union Tool Europe S.A. |
| 1988 |
|
| 1988 |
Establishment of Atsugi Sales Office and new heat treatment building at Nagaoka Factory |
| 1989 |
|
| 1989 |
日本証券業協会店頭市場へ株式公開 |
| 1990 |
|
| 1990 |
Construction and relocation of Tokyo Factory |
| 1991 |
|
| 1991 |
Construction of Nagaoka Third Factory |
| 1994 |
|
| 1994 |
Establishment of Nagoya Sales Office |
| 1995 |
Establishment of Union Tool (Shanghai) Co., Ltd. |
| 1995 |
中国現地法人UNION TOOL(SHANGHAI) CO.,LTD. 設立 |
| 1996 |
|
| 1996 |
Listing on Tokyo Stock Exchange Second Section |
| 1996 |
Relocation of headquarters |
| 1996 |
Establishment of Mishima Research Institute |
| 1997 |
Construction of Nagaoka Fourth Factory, establishment of Union Tool Hong Kong Ltd. |
| 1997 |
Construction of Nagaoka Fourth Factory |
| 1997 |
Establishment of Hong Kong Union Tool Ltd. |
| 1998 |
|
| 1998 |
Listing on Tokyo Stock Exchange First Section |
| 2000 |
Establishment of Union Tool Singapore Pte Ltd., Union Tool UK Limited, and ISO 14001 certification acquisition |
| 2000 |
Establishment of Union Tool Singapore Pte Ltd. |
| 2000 |
英国現地法人UNION TOOL UK LIMITED 設立 |
| 2000 |
Certification of Environmental Management System ISO 14001 |
| 2001 |
|
| 2001 |
Construction of Nagaoka Fifth Factory |
| 2002 |
Establishment of Dongguan Union Tool Corp. |
| 2002 |
中国現地法人DONGGUAN UNION TOOL CORP. 設立 |
| 2003 |
Establishment of Union Tool (Waigaoqiao Shanghai) Co., Ltd. |
| 2003 |
中国（上海市外高橋）現地法人 UNION TOOL (WAIGAOQIAO SHANGHAI) CO., LTD. 設立 |
| 2004 |
Construction of Technical Center, renaming from Megatool Inc. to U.S. Union Tool, Inc. |
| 2004 |
Construction of Technical Center |
| 2004 |
Renaming of U.S. Union Tool, Inc. from Megatool Inc. |
| 2005 |
|
| 2005 |
Establishment of Anjo Sales Office and Hiroshima Sales Office |
| 2006 |
|
| 2006 |
Establishment of Mitome Factory |
| 2008 |
|
| 2008 |
Establishment of North Kanto Sales Office |
| 2009 |
Establishment of Singapore local subsidiary and Thailand local subsidiary, expansion of Nagaoka Third Factory |
| 2009 |
Establishment of Taiwan local representative office |
| 2009 |
Expansion of Taiwan Union Tool Corp. Third Factory |
| 2010 |
Relocation of U.S. Union Tool, Inc. |
| 2010 |
Relocation of U.S. Union Tool, Inc. |
| 2011 |
|
| 2011 |
Construction of new headquarters building |
| 2012 |
Relocation of Dongguan Union Tool Corp. |
| 2012 |
Relocation of Dongguan Union Tool Corp. |
| 2016 |
|
| 2016 |
Construction of Mitome Second Factory |
| 2017 |
Opening of community-based childcare facility 'Union no Mori Nanyo Nursery School', establishment of Union Tool (Thailand) Co., Ltd. |
| 2017 |
Opening of community-based childcare facility 'Union no Mori Nanyo Nursery School' |
| 2017 |
Establishment of Union Tool (Thailand) Co., Ltd. |
| 2018 |
Series of ultra-precision micro-hole drills P series |
| 2018 |
UTSCOAT series for stainless steel processing |
| 2018 |
HMGCOAT series for high-hardness material processing |
| 2019 |
Monitoring radar |
| 2019 |
DLC COAT series for copper electrode processing |
| 2020 |
UDC COAT H series for carbide and brittle material processing |
| 2021 |
ø3mm shank end mill V series |
| 2021 |
High-efficiency finishing end mill series |
| 2022 |
Transition to Tokyo Stock Exchange 'Prime Market', relocation of Union Tool Singapore Pte Ltd. |
| 2022 |
Transition to Tokyo Stock Exchange 'Prime Market' |
| 2022 |
Relocation of Union Tool Singapore Pte Ltd. |
| 2022 |
CBN-PLB ultra-mirror finish end mill |
| 2022 |
HMWCOAT end mill for high-hardness materials |
| 2023 |
|
| 2023 |
Establishment of Shizuoka Sales Office |
| 2023 |
UTWCOAT end mill for raw materials to 40HRC |
| 2024 |
|
| 2024 |
Construction of Nagaoka Third Factory |
| 2024 |
Road surface condition measurement vehicle |
