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Clean Planet announced an investment from Sankei Building to support its Quantum Hydrogen Energy (QHe) technology development. The investment amount is undisclosed. QHe technology operates at approximately 815°C, producing heat with minimal hydrogen fuel without CO₂ emissions, suitable for decentralized energy in industrial settings.

Since 2015, Clean Planet has been working with Tohoku University and has 151 patents in 35 countries as of March 2026. Sankei Building will utilize its office buildings and hotels as demonstration sites for QHe systems, aiding practical application verification.