Su Tseng-chang was appointed to the premiership on 14 January 2019 by President Tsai Ing-wen.

He succeeded William Lai, who had resigned in response to the Democratic Progressive Party's poor performance in the 2018 Taiwanese local elections.

At the age of 71, he is the third oldest individual (after Lee Huan and Chen Chien-jen) to assume the office.

Su's premiership has led to an increase in approval of the Tsai administration.

The committee members of the boards are usually (a) governmental officials for the purpose of interdepartmental coordination and cooperation; or (b) creditable professionals for their reputation and independence.