Dear Friends and Participants,

On behalf of the Asian Crystallographic Association (AsCA), the Local Organizing Committee (LOC), and the International Program Committee (IPC), we are pleased to announce the 19th Conference of AsCA (AsCA 2025) in Taipei, Taiwan, co-hosted by Taiwan and Japan. The conference will take place at the Taipei International Conference Center (TICC) on December 1–5, 2025, jointly with the Symposium on Crystallography of Taiwan and the Crystallographic Society of Japan (CrSJ) Meeting.

AsCA, a regional associate of the International Union of Crystallography (IUCr), is the largest association in the field of structural science within the Asia-Oceania region. This conference, held when there is no IUCr congress, gathers participants not only from Asia and Oceania but also from other regions to share the latest research and advancements. It serves as a valuable platform for exchanging knowledge and strengthening international crystallographic networks among global researchers.

The LOC, formed by the Taiwan and Japan crystallographic societies, and the IPC, composed of international representatives of six major area including biology, physics, chemistry, materials science, and database/data science, are arranging a rich program featuring plenary lectures, keynotes, invited talks, oral and poster presentations, and microsymposia on hot-topic subjects. Additionally, there will be multiple workshops in Taiwan and Japan, commercial exhibitions, council meetings, local association meetings, a half-day synchrotron tour at NSRRC, and social events, including a welcome reception, a young scientist mixer, and a conference dinner.

Taiwan is renowned for its safety, vibrant high-tech industry, diverse cuisine, and natural beauty. Taipei, with its blend of tradition and modernity, offers iconic landmarks like Taipei 101 and night markets, all conveniently close to the conference venue TICC, ensuring a memorable experience.

We look forward to welcoming you to AsCA2025!

Sincerely yours,
AsCA2025 Co-Organizers