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Japan's Kyoto Fusioneering Secures Series D Funding Led by Korea-Japan Fusion Fund

IMM Investment Japan (IMMJ) announced on September 1 that it has led the Series D funding round for Kyoto Fusioneering, a Japanese fusion energy company. The investment was made through the Korea-Japan Fusion Fund, established jointly by Korean and Japanese investors. The fund, initiated by IMMJ, is positioned as a cross-border project fund designed to connect the capital and industrial networks of major Korean corporations with Japan's cutting-edge technology companies. Investors participating in the fund include POSCO Holdings, POSCO International, Doosan, Hyundai Motor, and GS...

2026-09-01

Kyoto Fusioneering Completes 25.72 Billion Yen Series D Funding Round

Japanese fusion startup Kyoto Fusioneering announced on August 24 that it has completed the first closing of its Series D funding round, with total financing of 25.72 billion yen. Of this amount, equity financing totaled 16.72 billion yen and debt financing totaled 9 billion yen, with the debt portion comprising credit lines and loan facilities. With this, the company's cumulative equity financing has reached 32.98 billion yen. Following this funding round, Kyoto Fusioneering is valued at approximately 120 billion yen, a significant increase from its pre-funding valuation, making it the first startup in Japan's fusion sector to exceed a valuation of 100 billion yen. The company has previously secured contracts exceeding 14 billion yen cumulatively in markets such as North America and Europe, and has set a short-term sales target of approximately 10 billion yen.

2026-08-24

Japan's GX Promotion Organization Invests in Nuclear Fusion Startups

Japan's Green Transformation Promotion Organization (GX Promotion Organization) has invested in two startups, focusing on nuclear fusion-related technology and plastic recycling businesses respectively. The public funds invested are expected to be approximately 3 billion yen; when private sector funds are included, the total related investment is expected to reach approximately 20 billion yen. The two companies are Kyoto Fusioneering and JEPLAN. Among them, Kyoto Fusioneering is primarily engaged in the development of nuclear fusion engineering technology, while JEPLAN is involved in circular economy businesses such as plastic recycling. Details of the investment are expected to be officially announced by the relevant parties. This investment is seen as part of Japan's push to industrialize its green transformation.

2026-08-24

Kyoto Fusioneering and Oak Ridge to Build World's First Fusion Blanket Verification Facility UNITY-3

Kyoto Fusioneering (KF), a Japanese fusion energy engineering company, announced that it will jointly build a facility named UNITY-3 with the U.S. Oak Ridge National Laboratory (ORNL) to verify the breeding blanket technology required for commercial fusion power plants. The project is described as the world's first facility dedicated to breeding blanket demonstration, and KF will also relocate its U.S. business base to Oak Ridge, Tennessee. The project has received support from the U.S. Department of Energy's relevant roadmap, Tennessee's nuclear energy supply chain investment fund, and the DOE, indicating that the fusion industry is shifting from purely plasma physics breakthroughs toward engineering, system integration, and supply chain development. The breeding blanket is a critical component for deuterium-tritium fusion power...

2026-08-12

Kyoto Fusioneering to Relocate U.S. Headquarters to Oak Ridge

Kyoto Fusioneering (KF) will relocate its U.S. headquarters to Oak Ridge, Tennessee, investing $46.9 million in Anderson County and creating 51 new jobs. The project will build critical fusion testing infrastructure, with a focus on supporting the development of the fusion nuclear testing facility UNITY-3. UNITY-3 is planned to be built at Oak Ridge National Laboratory (ORNL) through a public-private partnership. The facility has received support from the U.S. Department of Energy (DOE) and has been listed as a national priority in its final "Fusion Science and Technology Roadmap." According to the plan, UNITY-3 will employ a deuterium-tritium (D-T) fusion neutron source to validate tritium breeding capabilities and related performance under conditions approaching a real fusion nuclear environment...

2026-08-11