Yeo Tung Siong

Summary

Yeo Tung Siong is a DAP politician from Johor who served two consecutive terms as the elected assemblyman for Pekan Nanas (2013–2022) before losing the seat to Barisan Nasional in the 2022 Johor snap election. A former teacher and deputy headmaster, he has been a DAP Johor Executive Committee member since 2014 and serves as Chairman of DAP and Pakatan Harapan Tanjung Piai. He is the PH-DAP candidate for N55 Pekan Nanas in the 2026 Johor state election, with polling day set for July 11, 2026.

Biography

Yeo Tung Siong is a Malaysian politician from the Democratic Action Party (DAP) representing the N55 Pekan Nanas constituency in Johor. Before entering politics, he served as a teacher and Deputy Headmaster at Pei Chun High School, and subsequently as the special assistant to Boo Cheng Hau, the former Skudai state assemblyman [1]. He was first elected as the Member of the Johor State Legislative Assembly (ADUN) for Pekan Nanas in the 2013 general election and successfully defended the seat in the 2018 general election, winning with 44.6% of the vote in a multi-cornered contest [2]. He held the Pekan Nanas seat from 2013 to 2022 [1]. In the 2022 Johor snap state election, Yeo was defeated by Barisan Nasional's Tan Eng Meng, who secured 9,623 votes against Yeo's 5,595 [3]. He has served as a member of the DAP Johor Executive Committee since 2014 and as Chairman of Pakatan Harapan and DAP Tanjung Piai [1]. He was nominated by Pakatan Harapan to contest the N55 Pekan Nanas seat in the 2026 Johor state election, with polling day set for July 11, 2026 [4]. During his tenure as assemblyman, he raised public accountability issues in the Johor DUN and in the Tanjung Piai constituency [5].

Known for

Yeo Tung Siong is known for winning and holding the Pekan Nanas state seat across two consecutive general elections (2013–2022), in a constituency with a Malay-majority electorate, as a DAP candidate [6]. He also serves as a party organiser, holding the chairmanship of DAP and Pakatan Harapan Tanjung Piai since 2014 [1]. He returned as PH-DAP's candidate for Pekan Nanas in the 2026 Johor state election [4].

Political positions

Yeo Tung Siong has articulated the view that DAP can engage Malay voters through grassroots outreach without compromising the party's core identity, drawing on his own experience retaining a Malay-majority seat in Pekan Nanas [6][7]. In the 2019 Tanjung Piai by-election, he raised conflict-of-interest and government procurement accountability concerns at ceramah events in Pontian [8][9]. As Tanjung Piai DAP chairman, he aligned with the Pakatan Harapan coalition's decision not to field a DAP candidate in the Tanjung Piai by-election, citing coalition solidarity [4][10]. No public record of formal positions on specific state or federal legislative bills was found in the allowlist sources reviewed for this profile.

Before politics

1. Pre-2013Served as a teacher and Deputy Headmaster at Pei Chun High School.⛓
2. Pre-2013Served as special assistant to Boo Cheng Hau, the former Skudai state assemblyman.⛓

Political career

1. May 2013First elected as ADUN for Pekan Nanas (N55), Johor, in the 13th Malaysian General Election under DAP (Pakatan Rakyat).⛓
2. 2014Became a member of the DAP Johor Executive Committee and took on the role of Chairman of Pakatan Harapan and DAP Tanjung Piai.⛓
3. March 2017Directed by the Johor DUN Speaker to leave the state assembly chamber and barred from attending that day's sitting.⛓
4. May 2018Successfully defended the Pekan Nanas seat in the 14th Malaysian General Election under Pakatan Harapan (DAP), winning 44.6% of the vote in a three-cornered contest.⛓
5. October 2019As Tanjung Piai DAP chairman, announced DAP would not contest the Tanjung Piai parliamentary by-election in the spirit of Pakatan Harapan coalition solidarity.⛓
6. November 2019Raised conflict-of-interest and government procurement accountability issues at a ceramah in Penerok, Pontian during the Tanjung Piai by-election campaign.⛓
7. March 2022Lost the Pekan Nanas seat in the 2022 Johor snap state election to BN's Tan Eng Meng (9,623 votes vs 5,595 votes for Yeo), with DAP conceding defeat.⛓
8. June 2026Nominated as Pakatan Harapan (DAP) candidate for N55 Pekan Nanas in the 16th Johor State Election, with polling day set for July 11, 2026.⛓

Election history

• 2026Pekan Nanas (N55), JohorPending⛓
• 2022Pekan Nanas (N55), JohorLost29.8%⛓
• 2018Pekan Nanas (N55), JohorWon44.6%⛓
• 2013Pekan Nanas (N55), JohorWon⛓

Perspectives on key issues

• VerifiedFactsYeo Tung Siong held the Pekan Nanas state seat for two consecutive terms (2013–2022) under DAP; lost to BN's Tan Eng Meng in the 2022 Johor snap election (9,623 vs 5,595 votes, majority 4,028); and is the confirmed PH-DAP candidate for Pekan Nanas in the 2026 Johor state election (polling day: July 11, 2026).⛓
• GovernmentIncumbent BN-led Johor government is fielding MCA's Tan Eng Meng against Yeo in N55 Pekan Nanas — the same BN candidate who defeated Yeo in 2022 with a majority of 4,835 votes.⛓
• OppositionPakatan Harapan selected Yeo Tung Siong as its candidate for N55 Pekan Nanas for the 2026 Johor election, with PH secretariat chief Datuk Seri Saifuddin Nasution Ismail presenting him alongside PH coalition candidates at a press conference in Kulai.⛓
• ExpertMalaysiakini reported in April 2021 that Yeo Tung Siong held the view that DAP can win over Malay voters without compromising its core identity, drawing on his personal experience retaining Pekan Nanas after it became a Malay-majority constituency.⛓