Innovative Business Development in Algaculture and Aquaponics by Kumagai Gumi: Opportunities Ahead

Seminar on Kumagai Gumi's New Business Development in Algaculture and Aquaponics

On October 9, 2025, the Japan Planning Institute (JPI) will host a significant seminar featuring Makoto Arai, the Deputy General Manager of Kumagai Gumi's New Business Development Division. This seminar will delve into the commercialization strategies and future outlook of the company's innovative project combining algaculture and aquaponics.

Overview of the Seminar

Kumagai Gumi, primarily recognized for its construction business, is actively expanding its horizons by venturing into surrounding sectors. With the aim of diversifying revenue streams, they are undertaking new business projects, one of which is the algaculture combined with aquaponics initiative. This unique endeavor employs specialized Kumagai Gumi strains of microalgae cultivated within a completely self-sustaining aquaponics system, aiming to pioneer sustainable hybrid agricultural practices.

The project will kickstart its experimental phase in May 2024 at a dedicated laboratory in Saga City, Saga Prefecture. This seminar will provide insights into this collaboration between academia and industry, showcasing significant aspects concerning its commercialization.

What to Expect

During the presentation, participants will gain a comprehensive understanding of:
1. Kumagai Gumi's New Business Development: Discussing the positioning of surrounding business ventures as future growth opportunities, complemented by examples of other new ventures beyond the algaculture and aquaponics project.
2. Overview of the Algaculture and Aquaponics Project: An in-depth look into the experimental setup, including imagery and operational synergy between microalgae and aquaponics. The project’s origins and the significance of selecting Saga City for this collaboration will also be explained. Key sustainability frameworks like carbon neutrality and circular economy efforts will be highlighted.
3. Microalgae Insights: Exploration of the various application areas for microalgae, covering typical business sizes, market values, and Kumagai Gumi's vision for its proprietary strains.
4. Aquaponics Examination: Evaluation of the circular aquaponics facilities, unique features of Kumagai Gumi’s aquaponics approach, and market-driven exit strategies for product development in both B2B (trout salmon market) and B2C (hydroponics market).
5. Engagement and Networking: Active discussions, Q&A sessions, and opportunities for networking between lecturers and attendees will be encouraged, fostering connections that can aid in business growth.

Attending the Seminar

Participants can opt for in-person attendance, live streaming, or access to archived recordings for two weeks post-event. The seminar registration fee is as follows:

- Individual: 37,500 yen (tax included)
- For teams (2 or more): 32,500 yen per person (when applied simultaneously by internal departments or affiliates)
- Special rate for public sector attendees (up to 11,000 yen for two individuals if attending in the same manner).

For more information and to register, please visit JPI Seminar Registration.

Post-Seminar Opportunities

Post-event, participants will have the chance to engage with the lecturer for further inquiries and networking, facilitating the establishment of crucial business connections. Archived streaming availability ensures that attendees can revisit the seminar content at their convenience.

About JPI

The Japan Planning Institute has been a vital contributor to the dissemination of knowledge relevant to government policies and national projects. Since its inception, JPI has delivered exclusive, practical seminars geared towards executive managers, promoting the integration of knowledge across public and private sectors.

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