ARENT

NEWS

Announcement on the Additional Acquisition of Shares (Full Ownership) of PlantStream Inc. and Changes in Executive Management

2025.2.26

publication

Arent Acquires Additional Shares of PlantStream, Making It a Wholly Owned Subsidiary

Date: February 25, 202
Arent Inc. (Head Office: Minato-ku, Tokyo; President & CEO: Hiroki Kamobayashi; hereinafter referred to as “Arent”) hereby announces that its Board of Directors has resolved today to acquire additional shares of PlantStream Inc. (Head Office: Minato-ku, Tokyo; Representative CEO: Seitaro Narue; hereinafter referred to as “PS”), a joint venture with Chiyoda Corporation (Head Office: Yokohama, Kanagawa; President & CEO: Koji Ota; hereinafter referred to as “”), thereby making it a wholly owned subsidiary.

1. Reason for the Additional Acquisition of Shares and Future Strategy

Arent and Chiyoda jointly established PS in 2020 to develop and sell “PlantStream®,” an innovative 3D CAD software equipped with automatic plant layout design functionality.
Utilizing Chiyoda’s expertise in plant engineering and Arent’s advanced 3D CAD technology, “PlantStream®” has successfully transformed plant engineering by systematizing industry expertise into a structured form. To date, it has been adopted by approximately 25 EPC contractors and plant owners across 10 countries, covering a wide range of industries such as oil and gas, chemicals, ultrapure water, power, steel , and hydrogen. The software has been continuously enhanced, featuring core functionalities such as automatic piping routing, material and construction quantity estimation, and integration with existing software, leading to improved initial design quality and significant reduction in man-hours.
Although PS has not yet achieved profitability in terms of operating income, it is projected to generate positive operating cash flow from this fiscal year onwards, securing a sustainable business foundation. After thorough discussions, Arent and Chiyoda have agreed that Arent will acquire Chiyoda’s shares and make PS a wholly owned subsidiary to enhance decision-making efficiency and streamline management operations. Despite the termination of the joint venture agreement, Arent will continue its technical collaboration with Chiyoda to drive further innovation and contribute to the advancement of the plant engineering industry.
“PlantStream®,” developed in collaboration with Chiyoda, has been a pioneering product for Arent’s business model. Our partnership has laid the foundation for industry innovation. Moving forward, we will maintain a strong partnership with Chiyoda and work together to further advance the industry. PS’s business operations will remain unchanged, and customers can continue using ‘PlantStream®’ without interruption.

2. Overview of the Subsidiary to be Acquired

Item Details
Name PlantStream Inc.
Location 3-23-17 Takanawa, Minato-ku, Tokyo
Representative CEO: Seitaro Narue, Co-CEO: Takeshi Oda
Business Development and sales of software for the plant engineering industry
Capital 100 million yen
Established July 1, 2020 (Renamed on August 3, 2020)
Major Shareholders & Ownership Ratio Chiyoda Corporation: 50%, Arent Inc.: 50%

3. Overview of the Seller

Item Details
Name Chiyoda Corporation
Location 4-6-2 Minatomirai, Nishi-ku, Yokohama, Kanagawa
Representative President & CEO: Koji Ota
Business Comprehensive engineering business
Capital 15,014 million yen
Established January 20, 1948
Net Assets 7,915 million yen
Total Assets 438,539 million yen
Major Shareholders & Ownership Ratio Mitsubishi Corporation: 60.23% (as of September 30, 2024)

4. Number of Shares Acquired, Acquisition Price, and Shareholding Before and After Acquisition

Item Details
Shares Owned Before Acquisition 1,837 shares (Voting Rights: 1,837, Ownership Ratio: 50%)
Shares to be Acquired 1,837 shares
Acquisition Price 225 million yen
Shares Owned After Acquisition 3,674 shares (Voting Rights: 3,674, Ownership Ratio: 100%)

5. Schedule (Planned)

Item Date
Board Resolution February 25, 2025
Contract Signing March 11, 2025 (Planned)
Share Acquisition Execution March 17, 2025 (Planned)

6. Changes in Executive Management

At today’s Board of Directors meeting, Arent resolved to appoint Takeshi Oda, currently a Director of Arent and Co-CEO of PS, as Executive Director of Arent to strengthen the PS’s business.
Additionally, following the full acquisition of PS , Takehito Miki, currently Arent’s Chief Revenue Officer (CRO) and Chief Operating Officer (COO) of PS, will be appointed as CEO of PS. This new leadership structure, with two executives who have been driving both development and sales, aims to further enhance PS’ business.
Name New Position Current Position
Takeshi Oda Executive Director of Arent Inc. & Co-CEO of PlantStream Inc. Director of Arent Inc. & Co-CEO of PlantStream Inc.

7. Future Outlook

The impact of this transaction on consolidated financial results is currently being assessed. If any material impact is identified, relevant information will be disclosed promptly.

For Inquiries Regarding This Announcement:

Arent Inc. IR Email: ir@arent3d.com