Cheng Li Hui

Cheng Li Hui (; born 1976) is a Singaporean businesswoman and former politician. A former member of the governing People's Action Party (PAP), she was the Member of Parliament (MP) representing the Tampines East division of Tampines Group Representation Constituency (GRC) between 2015 and 2023, when she resigned regarding an extramarital affair with then-Speaker of Parliament Tan Chuan-Jin.

Education Cheng studied at Bukit Panjang Government High School and Anglo-Chinese Junior College, and graduated from the National University of Singapore with a Bachelor of Arts degree. She subsequently went on to complete a Master of Applied Finance degree at Macquarie University.

Cheng made her political debut at the 2015 general election as part of the PAP team for the five-member Tampines GRC; she became the MP for the Tampines East division of the GRC after the PAP defeated the National Solidarity Party (NSP) with 72.07% of the vote. She was appointed Deputy District Advisor of the PAP Women's Wing in 2016.

In the 2020 general election, Cheng stood for reelection in Tampines GRC; the PAP defeated the NSP with 66.41% of the vote.

On 17 July 2023, Cheng and Tan Chuan-Jin, the married then-Speaker of Parliament, resigned from both Parliament and the PAP. During a press conference, Lee Hsien Loong, then-Prime Minister and secretary-general of the PAP, confirmed that the two had resigned over an affair he first heard of after the 2020 general election. They had previously undergone counselling regarding the affair; however, they resigned after he "came across" information indicating that they had continued it. In statements, Lee said that Cheng and Tan's resignations were "necessary" to "maintain the high standards of propriety and personal conduct which the PAP [had] upheld all these years."

Business career As of 2017, Cheng was serving as Deputy Chief Executive Officer of Hai Leck Holdings. She was also a board member at Allied Construction, Hai Leck Engineering, Enzo Investment, Hai Leck Development, Hai Leck Holdings and Cheng Capital Holdings.

Personal life Cheng is the daughter of Cheng Buck Poh, the founder and Executive Chairman of Hai Leck Holdings. She has three siblings.

Cheng is unmarried, according to news coverage of her affair with Tan.