Tsubame BHB Co., Ltd., based in Yokohama, Japan, has been recognized for its cutting-edge technologies in the manufacturing of ammonia. Founded in 2017, the company focuses on the on-site production of ammonia using state-of-the-art methods that operate at low temperatures and pressures. By leveraging electride catalyst technologies developed by Professor Emeritus Hideo Hosono, Tsubame BHB aims to contribute to environmental sustainability by reducing the environmental impact of conventional ammonia production processes. The company's recent inclusion in the Global Cleantech 100 list for 2025 highlights its innovative approaches and commitment to sustainable innovation. Tsubame BHB has received significant investments, with a Series C round raising approximately 5.3 billion yen, showcasing growing interest in its technologies. The company has also attracted international attention, with visits from overseas investors and collaborations with global organizations interested in its unique solutions. By aiming to achieve a carbon-neutral society through the production of ammonia for fuel and fertilizer applications, Tsubame BHB is aligning its goals with the global push for environmental conservation. The company's expansion efforts are notably focused on markets in North and South America, Australia, and Africa, indicating a strategic approach to addressing environmental and social challenges on a global scale. Through its commitment to utilizing renewable energy sources and driving technical innovations, Tsubame BHB is poised to continue its contributions to sustainable practices and environmental value creation. The recognition on the Global Cleantech 100 list further solidifies Tsubame BHB's position as a leading player in the cleantech industry, showcasing its dedication to advancing technologies for a more sustainable future.