Mat Shuhaimi Shafiei (died) Pakatan Harapan (PKR) Zawawi Ahmad Mughni Pakatan Harapan (PKR) A by-election was held on 4 August 2018 for the Selangor State Legislative Assembly seat of Sungai Kandis.

[1] The seat became vacant after the death of the former assemblyman, Mat Shuhaimi Shafiei from lymphatic cancer on 2 July 2018.

He won his seat after defeating BN, PAS and PRM candidates with a majority of 12,480 votes.

There was no early voters in the by-election, while the overseas and domestic postal voting applications was opened from 8 to 21 July.

[8] As initially expected, the by-election was a straight contest between the Pakatan Harapan and Barisan Nasional, with PAS bowing out to make way for BN.

[10] Barisan Nasional chose Lokman Noor Adam, an UMNO Supreme Council member as their candidate.