Sang studied at Seoul National University in the Republic of Korea. In 1993 Sang became a Doctor of Philosophy.
Research associate Genetic Engineering Institute Seoul (Republic of Korea) National University, 1990—1992; postdoctoral research associate University Wisconsin Madison, 1993—1995; associate professor Youngdong University, Youngdong-gun, Republic of Korea, 1995—2003; professor Department Biological Science Myongji University, Yongin, Republic of Korea, since 2003; Consultant Korean Business Newspaper, Seoul, since 2000, Small and Medium Business Admintrns., Cheongju, Chungbuk, since 2001; director-general Research and Development Bachelor of Medicine Biotech Incorporated, since 2003; evaluator Korea Institute S&T Evaluation and Planning, since 2003, Korean Institute Industrial Technology Evaluation and Planning, since 2004; technical advisor Lee & Joe Biotech, incorporated, since 2003, Ovobio Limited company, since 2003; member evaluation team Korean broadcasting Systems, since 2003; deputy director general International Biographical Center, England, since 2005; Editor: Microorganisms and Industry, 2003, Korean Journal Microbiology, 2005-2006, Academy Journals Incorporated, since 2006, Recent Patents on Anti-Infective Drug Discovery, since 2006, Journal Microbiology, since 2007; editor-in-chief: Research Journal Microbiology, since 2006; reviewer Journal Applied Microbiology, since 2003; Private Republic of Korea Army, 1981-1984.
Sang married to Hye Jeong Song. They have a child: Jaepil David.