Throughout his career, he has held president positions in several local and international societies, including the International Society of Antimicrobial Chemotherapy (ISAC), Asia-Pacific Society of Clinical Microbiology and Infection (APSCMI), Global Chinese Association of Clinical Microbiology and Infection (GCACMID), Infection Control Society of Taiwan (ICST), Taiwan Society of Microbiology (TSM), and Taiwan Society of Clinical Pathology and Laboratory Medicine (TSCPaLM). He has also served as a member of the Scientific Program Committee for several international congresses, including the International Congress of Antimicrobial Chemotherapy (ICC), American Society for Microbiology (ASM) Microbe, European Congress of Clinical Microbiology and Infectious Diseases (ESCMID), and other regional congresses on infectious diseases and clinical microbiology.