In April 2023 Tsukishima Kikai Co., Ltd. transitioned to a holding company structure and assumed a new name: Tsukishima Holdings Co., Ltd.
The following to companies succeeded to the businesses handeld by Tsukishima Kikai Co., Ltd. through March 2023:
Industrial Business is transferred to new Tsukishima Kikai Co., Ltd.
Water Environment Business is transferred to Tsukishima Aqua Solution Co., Ltd.