Grant's core objective is to prepare the scientific community for the exploitation of Quantum Space Gravimetry (QSG) mission data by fostering robust EU-Japan cooperation in quantum sensing from space. This includes developing new algorithms and applications for enhanced QSG data. This is a SECTOR-SPECIFIC grant focused on space technology, quantum sensing, gravimetry, and Earth science. Target recipients are scientific communities, research institutions, and organizations involved in R&D in EU Member States, Horizon Europe Associated Countries, and Japan. The geographic scope specifically requires collaboration between EU/Associated Countries and Japan. Key filtering criteria include a strong focus on QSG, a mandatory EU-Japan consortium, and research and innovation activities. This is a specific topic within the HORIZON-CL4-2025-02 call, with a single project expected to be funded.