Senior in charge Touche Ross & Company, Los Angeles, 1970-1975. Partner-in-charge Chuang, Chen & Lau Acctcy. Corporation, 1978-1985.
Chairman board American International Bank, 1985-1994. Assistant professor California State University.A., 1994-1998. 1st vice president Prudential Securities, Rolling Hills Estate, California, since 1998.
Acting secretary State of California, 1988. Delaware Republican National Convention, California, 1992. President Monterey Park and Yung Ho Sister City Association, 1983-1985.
Co-chair Asians for Bush-Quayle, 1992.
Member American Institute of Certified Public Accountants, California Certified Public Accountants, National Association Chinese American Bankers (chairman), California State Los Angeles University Foundation (delegate republican national convention 1992), Tamkang University Alumni Association (president), Chinese University Alumni Association American (chairman).