Visiting scholar, Prof. Renato Cruz De Castro has registered at Center for Chinese Studies on April 16, 2025. He is a Filipino scholar who is a professor at the Department of International Studies, De La Salle University, Philippines. Prof. De Castro’s research period in Taiwan is from April to August, at the Institute of International Relations, National Chengchi University. His research topic is "Ensuring the Long-Term Security of the First Island Chain: Linking the Philippines' Comprehensive Archipelagic Defense Concept (CADC) With the Defense Postures of Taiwan and Japan".