What is Leslie Koo?
{{Chinese name|[[Gu (surname)|Koo]]}} {{Infobox person | name = Leslie Koo Cheng-yun | image = 馬總統參訪現代版「諾亞方舟」－辜嚴倬雲植物保種中心 高度肯定其努力成果與貢獻(辜成允)(cropped).jpg | image_size = 175 | alt = | caption = | birth_name = | birth_date = {{Birth date|1954|11|28}} | birth_place = [[Taiwan]] | death_date = {{Death date and age|2017|01|23|1954|11|28}} | death_place = [[Taipei]], Taiwan | nationality = | other_names = Gu Chengyun | occupation = [[Businessperson]] | alma_mater = [[University of Pennsylvania]] | years_active = | known_for = | notable_works = | parents = [[Koo Chen-fu]] | relatives = [[Chester Koo]] (brother) }} '''Leslie Koo Cheng-yun''' ({{zh|c=辜成允|p=Gū Chéngyǔn|w=Ku Ch'eng-yün}}; 28 November 1954 – 23 January 2017) was a Taiwanese business executive and billionaire. He served as Chairman of [[Taiwan Cement Corporation]] until his death in 2017. He was the second son of famous businessman and diplomat [[Koo Chen-fu]].<ref name=forbes>{{cite news |url=https://www.forbes.com/sites/russellflannery/2017/01/23/powerful-taiwan-billionaire-clan-suffers-loss-as-leslie-koo-dies-in-taipei/ |title=Powerful Taiwan Billionaire Clan Suffers Loss As Leslie Koo Dies In Taipei |date=23 January 2017 |work=Forbes}}</ref><ref name=scmp>{{cite news |url=http://www.scmp.com/news/china/policies-politics/article/2064733/taiwanese-cement-scion-leslie-koo-dies-fall |title=Taiwanese cement scion Leslie Koo dies in fall |date=24 January 2017 |work=South China Morning Post}}</ref> He was a member of the [[Lukang]] Koo clan, one of the five wealthiest families of Taiwan.<ref name=cw>{{cite news |last1=Huang |first1=Ching-Hsuan |title=Preserving the Koo Family Escutcheon |url=http://english.cw.com.tw/article.do?action=show&id=12501 |access-date=25 January 2017 |work=CommonWealth Magazine |via=''China Post'' |date=16 December 2010 |archive-url=https://web.archive.org/web/20161225021831/http://english.cw.com.tw/article.do?action=show&id=12501 |archive-date=25 December 2016 |url-s