Chang San-cheng
張善政
Official portrait, 2022
2nd Mayor of Taoyuan
Incumbent
Assumed office 25 December 2022
Deputy	See list Wang Ming-ju Su Jun-bin
Preceded by	Cheng Wen-tsan
27th Premier of the Republic of China
In office 1 February 2016 – 20 May 2016 Acting: 18 January 2016 – 1 February 2016
President	Ma Ying-jeou
Deputy	Woody Duh
Preceded by	Mao Chi-kuo
Succeeded by	Lin Chuan
33rdVice Premier of the Republic of China
In office 7 December 2014 – 1 February 2016
Prime Minister	Mao Chi-kuo Himself (acting)
Preceded by	Mao Chi-kuo
Succeeded by	Woody Duh
Ministerial offices 1stMinister of Science and Technology In office 3 March 2014 – 7 December 2014 Prime Minister Jiang Yi-huah Deputy Lin Yi-bing Preceded by Cyrus Chuas Minister of National Science Council Succeeded by Lin Yi-bing(Acting) Minister without Portfolio In office 6 February 2012 – 2 March 2014 Prime Minister Sean Chen Jiang Yi-huah Succeeded by Chiang Been-huang
Personal details
Born	(1954-06-24)24 June 1954 (age 71)[1] Taipei,Taiwan
Political party	Kuomintang (since 2022) Independent (before 2022)
Alma mater	National Taiwan University (BS) Stanford University (MS) Cornell University (PhD)
Scientific career
Fields	Civil engineering Structural engineering
Thesis	An Integrated Finite Element Nonlinear Shell Analysis System with Interactive Computer Graphics (1981)
Doctoral advisor	Richard H. Gallagher Yih-Hsing Pao

Chang San-cheng (Chinese:張善政;pinyin:Zhāng Shànzhèng; born 24 June 1954),^[1] also known by his English nameSimon Chang,^[2] is a Taiwanesecivil engineer, academic, and politician who has served as themayor ofTaoyuan City since 2022. He previously served aspremier of Taiwan from 1 February 2016 to 20 May 2016 after being appointed by PresidentMa Ying-jeou.^[3] Before assuming the premiership, he had served asvice premier from 8 December 2014 under theMao Chi-kuo cabinet.^[4][5][6][7] Chang was the firstnonpartisan premier of Taiwan.

Before entering politics, Chang graduated fromNational Taiwan University and earned a master's degree fromStanford University and his doctorate fromCornell University in engineering. He began an independent campaign for the2020 Taiwanese presidential election, then suspended his run to join theKuomintang ticket, headed byHan Kuo-yu. The pair lost to incumbent presidentTsai Ing-wen and her running mateWilliam Lai.

Chang was born inTaipei, Taiwan, on June 24, 1954, to Yun-Hwa and Tung-wen Chang. He was educated at Chang-An Elementary School (1960–1966), Ta-tung Junior High School (1966–1969), and graduated fromTaipei Municipal Chien Kuo High School in 1972.^[8]

After high school, Chang attendedNational Taiwan University and graduated with hisBachelor of Science (B.S.) incivil engineering in 1976. He left Taiwan in September 1976 to complete graduate studies in the United States, where he earned aMaster of Science (M.S.) in civil engineering andstructural engineering fromStanford University. Chang was then awarded a graduate fellowship to enroll inCornell University and earned hisPh.D. in civil and structural engineering from Cornell in 1981 with a specialization incomputer graphics.^[9] His doctoral dissertation was titled, "An Integrated Finite Element Nonlinear Shell Analysis System with Interactive Computer Graphics," and was supervised by professorsRichard H. Gallagher andYih-Hsing Pao.^[10]

Upon graduation, Chang returned to Taiwan to serve as a lecturer, associate professor and finally, professor in the Department of Civil Engineering of National Taiwan University from 1981 to 1990. He was the Director forNational Center for High-Performance Computing from 1991 to 1997. From 1998 to 2000, he was the Director of the Department of Planning and Evaluation ofNational Science Council. Between 2000 and 2010, he worked forAcer Inc. as Vice President of the e-Enabling Service Business Group, and between 2010 and 2012, he worked forGoogle as the Director of Google's hardware operations in Asia.^[11]

Chang was first appointed and involved in politics as aminister without portfolio of theExecutive Yuan in 2012 under theSean Chen cabinet. On March 3, 2014, theNational Science Council was upgraded to the Ministry of Science and Technology, and Chang was named as its first minister. On December 8, 2014, after the rulingKuomintang lost thelocal elections, Chang became thevice premier after a cabinet reshuffle.

On January 16, 2016, after the KMT lost the presidency and its majority in theLegislative Yuan at the2016 Taiwanese general election, the then-incumbentpremierMao Chi-kuo resigns and refuse to stay at the position, Chang served as the acting premier while Mao is outgoing.

On 1 February, the then-incumbent PresidentMa Ying-jeou approve resignation of Mao Chi-kuo, and appointed Chang to form thecabinet to serve the remaining four months during the period of transition of power. As a result, Chang became the firstnonpartisan premier of the history in Taiwan's politics.

Chang announced his independent candidacy for the2020 Taiwan presidential election on 17 February 2019.^[12] Chang later joined the presidential campaign of Kuomintang candidateHan Kuo-yu as an adviser without halting his own campaign.^[13][14] In August 2019, Han formed a national policy advisory group headed by Chang.^[15] Chang's selection as the Kuomintang's2020 Taiwan presidential election vice presidential candidate was announced on 11 November 2019.^[16][17]

Party		Candidate		Votes	Percentage
		President	Vice president
	Democratic Progressive Party	Tsai Ing-wen	William Lai	8,170,231	57.13%
	Kuomintang	Han Kuo-yu	Chang San-cheng	5,522,119	38.61%
	People First Party	James Soong	Sandra Yu	608,590	4.26%
Total				14,300,940	100%
Valid votes				14,300,940	98.87%
Invalid votes				163,631	1.13%
Votes cast / turnout				14,464,571	74.90%
Eligible voters				19,311,105

In May 2022, Chang was nominated by theKuomintang as its candidate in thelocal elections for theTaoyuan mayoralty after a closed-door meeting of the party's Central Standing Committee.^[18] Chang was elected by 52.02% percentage of votes and assumed office in December 2022.

• List of vice premiers of the Republic of China

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• 1954 births
• Living people
• Cornell University College of Engineering alumni
• National Taiwan University alumni
• Academic staff of the National Taiwan University
• Ministers of science and technology of Taiwan
• Premiers of the Republic of China on Taiwan
• Vice premiers of the Republic of China on Taiwan
• Mayors of Taoyuan City
• Stanford University alumni
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