[1] She announced her retirement from politics following the 2024 legislative election, effective at the end of the National Assembly's term on 29 May.

[4] At the age of 21, she worked at a cassette tape factory where her days as a labor rights activist began.

[5] She won her first direct election in the 19th National Assembly as a member of the UPP with 49.37% of the votes in an area of Gyeonggi Goyang in 2012.

[8] She announced her retirement from politics following the 2024 legislative election after the Justice Party failed to win seats for the first time since its foundation.

Her key policy in the 2022 South Korean election was the proposal of a four-day work week, which has been described as "a revolutionary idea in a country where workers endure notoriously long hours".

[11] Sim opposes the deployment of THAAD, a U.S. anti ballistics missile defense system, and supports a nuclear-free Korean Peninsula.