1948
- Started confectionery business with 2 employees
- Expand business with castella, carbis, chocolate, etc.
1968
- Started Lost Wax Precision Casting Prototype at the Confectionery Machine Maintenance Division
1970
- Casting division was separated, and established King invest Co.,Ltd.
1975
- Expansion of new melting furnaces, construction of mold buildings
1986
- Wax and coating building extension
1989
- Casting, and mold building extension, construction of new material development building
1991
- Established branches in Osaka and Tokyo
- Obtained U.S. patent for Metal Injection
1995
- Established K2 FINE METAL CORPORATION
- 1995 Established a precision casting company in Philippines, K2 Fine Metal Corporation
1997
- Construction of processing building (introduction of machining)
2000
- ISO 9002 certification at CASTEM and Philippines factory
- Established Nagoya branch
2001
- Renamed CASTEM Corporation
2002
- Established CASTEM (Thailand) Co., Ltd. (C.T.C)
- Renamed K2 Fine Metal Corporation to CASTEM Philippines Corporation
- Separated Sales Dept. as CASTEM Incorporation
2004
- Established CASTEM (Siam) Co., Ltd. (C.S.C)
2006
- ISO 9001 certification at C.P.C
2007
- Shifted to a holding company system Holding company : CASTEM Co., Ltd.
- Manufacturing : CASTEM Engineering Co., Ltd.
- Sales & Marketing : CASTEM Incorporation
- ISO 9001 certification at C.S.C
2008
- Integrated CASTEM FJC into CASTEM Engineering Co., Ltd.
- Integrated Paper Airplane Studio into CASTEM Incorporation
2009
- CASTEM Engineering Co., Ltd. and CASTEM Incorporation merged into CASTEM Co., Ltd.
2010
- Tokyo Branch (Shinagawa-ku, Tokyo) closed, South Kanto Office (same as the location of Tokyo Branch) and North Kanto Office opened.
- ISO 9001:2008 certification at CASTEM
2011
- Established CASTEM FRONTIER CORPORATION
2012
- EcoAction21 certification at CASTEM
2015
- Tachikawa Branch opened, South Kanto Office changed to Yokohama Branch, and North Kanto Office to North Kanto Branch
- Established CASTEM HOUSTON, LCC
- Established CASTEM COLOMBIA S.A.S
- ISO 14001 certification at CASTEM(Siam) Co., Ltd.
2017
- Opened IRONCAFe in Akihabara
2018
- CASTEM (Siam) Co., Ltd. Extension
- CASTEM Philippines Corporation absorbs and Expands CASTEM Frontier Corporation
- Opened the CASTEM Kyoto LiQ Building in Kyoto, and opened a Kyoto sales office in the Kyoto LiQ Building.
- Started agricultural business and established Panipani Farm Castem Co., Ltd. in Miyakojima City, Okinawa Prefecture
- Opened Jinseki IchigoFarm in Jinseki Kōgen Town, Jinseki District, Hiroshima Prefecture
- Closed IRONCAFe, established Metamate Co., Ltd. in Tokyo, and started entering the market for individuals
- ISO 14001 certification at CASTEM(Thailand)Co.,Ltd.
- Closed CASTEM HOUSTON, LLC and established CASTEM Technology Laboratories, Inc. in the U.S. (Irvine, CA)
2019
- Establishment of Amata City Chonburi Branch as the second plant of CASTEM (Thailand) Co., Ltd.
2020
- Celebrating 50th Anniversary
2021
- Business alliance with JUKI Corporation
- Yokohama Branch (Yokohama City, Kanagawa Prefecture) moved to Ota-ku, Tokyo and changed the branch name to Tokyo Branch
2022
- Established Kyushu branch in Fukuoka

To be your best business partner
Manufacturing companies face various issues such as Iot、AI、SDGs、Sustainable, decarbonize. Raising productivity, high quality, and a defect rate as close to zero as possible have been told as Japan''s basic stance on manufacturing. Although, I think that excessive kaizen has made companies rigid and has become a constitution that cannot think flexibly. CASTEM aims to be a company that thoroughly continues to make attempts to attract new needs that have never been seen before. I would like to review once again the very old stereotype like “this shape and this material are only for this application” and reincarnate it with a completely new form and material with current technology. And we want to walk with pride as a partner, not as a subcontractor to our customers. We will be the brand-new manufacturing company that freely repeats changes and combinations like an amoeba while possessing a basic pyramid structure, and the whole is harmonize. We will draw a future forecast that everyone will be excited about.

CEO
Takuo Toda

Creating
CASTEM Group''s passion for manufacturing has driven us to work for human resources development. Setting up a division working on paper airplanes. is its prime example.
A single piece of paper turns into an airplane flying over the great blue sky, and a small technical effort makes different trails.
Such a small experiences leads children to future efficient engineers. From a small factory to a leading developer of technology, our evolution never ends.
https://www.castem.co.jp/en/about/message/