Sean Sih-Cheng Du (he/him) is the Secretary-General of the Taiwan Tongzhi (LGBTQ+) Hotline Association. He joined Hotline as a volunteer in 2002 and has been actively involved in the work on LGBTI+ and PLWHIV’s rights. He became Hotline’s Director of Policy Advocacy in 2011 and the Secretary-General in 2021. His work includes social education, LGBTQ+ inclusive workplace, gay men’s sexual health, LGBTQ+-friendly healthcare, and international affairs. He is currently the East Asian Representative of the ILGA Asia Executive Board, a member of the Gender Equality Committee, Executive Yuan, and a board member of the Taiwan Equality Campaign and the Taiwan Men’s Association. He was a member of the Taipei City Committee of Gender Equality, a crucial member of the Marriage Equality Coalition Taiwan and a board member of the Persons with HIV/AIDS Rights Advocacy Association of Taiwan. He has a master’s degree in Sociology from National Taiwan University.