Batang Ai

Batang Ai (N34)
Sarawak constituency
State constituency
Legislature	Sarawak State Legislative Assembly
MLA	Malcom Mussen Lamoh; GPS
;
Constituency created	1977
First contested	1979
Last contested	2021

Batang Ai is a state constituency in Sarawak, Malaysia, that has been represented in the Sarawak State Legislative Assembly since 1979.

The state constituency was created in the 1977 redistribution and is mandated to return a single member to the Sarawak State Legislative Assembly under the first past the post voting system.

Demographics

Ethnic breakdown of Batang Ai's electorate as of 2022

Sarawak bumiputera (93.9%)
Chinese (3.40%)
Malay-Muslim bumiputera (2.00%)
Other ethnicities (0.70%)

History

As of 2020, Batang Ai has a population of 12,597 people.^[1]

Polling districts

According to the gazette issued on 31 October 2022, the Batang Ai constituency has a total of 24 polling districts.^[2]

State constituency	Polling Districts	Code	Location
Batang Ai (N34)	Sebangki	203/34/01	SK Sebangki
	Lubok Antu	203/34/02	SMK Lubok Antu
	Sekarok	203/34/03	SK Sekarok
	Kesit	203/34/04	SK Ng. Kesit RH Limpeng Lepong Mawang Kesit
	Engkari	203/34/05	SK Ulu Engkari
	Delok	203/34/06	SK Ng. Delok Lubok Antu
	Kaong	203/34/07	Tadika KEMAS Kaong Ulu Pusat Sumber Nyemungan Simpang
	Empit	203/34/08	SK Melaban Empit
	Kumpang	203/34/09	SK Ng. Aup
	Klampu	203/34/10	RH Renggie
	Sayat	203/34/11	SK Ng. Kumpang
	Kutai	203/34/12	SK Lubok Antu
	Mepi	203/34/13	SK Batang Ai
	Jela	203/34/14	Tadika KEMAS Ng. Jela Ng Telaus Sps
	Sempang	203/34/15	Tadika KEMAS Sempang
	Bertik	203/34/16	Dewan Seberguna SALCRA SPS Batang Ai
	Krangan Mong	203/34/17	Tadika Kemas Krangan Mong
	Ensawang	203/34/18	Dewan Seberguna SALCRA Skim Batu Kaya
	Kachong	203/34/19	SK Ng. Menyebat
	Patoh	203/34/20	RH Jeli RH Bakar
	Bilarap	203/34/21	SK Ulu Lemanak Ng. Uyau
	Sepata	203/34/22	SK Ng. Tibu
	Gugu	203/34/23	RH Intang Mengiling
	Nenyang	203/34/24	SESCO Township Hall

Representation history

Members of the Legislative Assembly for Batang Ai
Assembly	No	Years	Member	Party
Constituency renamed from Ulu Ai^[3]
Batang Air
10th	N18	1979-1982	David Jemut	BN (SNAP)
10th		1982-1983	Mikai Mandau	Independent
11th		1983-1986	Sylvester Langit Uming	SNAP
11th		1986-1987	Mikai Mandau	Independent
12th		1987-1991	Mikai Mandau	PBDS
13th	N23	1991-1996	Dublin Unting Ingkot	PBDS
14th	N25	1996-2001		BN (PBDS)
15th		2001-2004		BN (PBDS)
15th		2004-2006		BN (PRS)
16th	N29	2006-2009	Dublin Unting Ingkot	BN (PRS)
16th		2009-2011	Malcom Mussen Lamoh
17th		2011-2016	Malcom Mussen Lamoh
Batang Ai^[4]
18th	N34	2016-2018	Malcom Mussen Lamoh	BN (PRS)
18th		2018-2021		GPS (PRS)
19th		2021–present		GPS (PRS)

Election results

Sarawak state election, 2021: Batang Ai
Party		Candidate	Votes	%	∆%
	GPS	Malcom Mussen Lamoh	3,208	44.59	29.61
	Independent	John Linang Mereejon	2,470	34.33	34.33
	PSB	William Nyallau Badak	1,366	18.99	18.99
	PBK	Usup Asun	151	2.10	2.10
Total valid votes			7,195	100.00
Total rejected ballots			68
Unreturned ballots			14
Turnout			7,277	73.29	2.54
Registered electors			9,929
Majority			738	10.26	38.14
	GPS gain from BN		Swing		?
Source(s) https://lom.agc.gov.my/ilims/upload/portal/akta/outputp/1718688/PUB687.pdf

Sarawak state election, 2016: Batang Ai
Party		Candidate	Votes	%	∆%
	BN	Malcom Mussen Lamoh	4,884	74.20	2.02
	PKR	Kolien Liong	1,698	25.80	2.02
Total valid votes			6,582	100.00
Total rejected ballots			116
Unreturned ballots			18
Turnout			6,716	70.75	1.21
Registered electors			9,492
Majority			3,186	48.40	4.04
	BN hold		Swing
Source(s) "Federal Government Gazette - Notice of Contested Election, State Legislative Assembly of the State of Sarawak [P.U. (B) 190/2016]" (PDF). Attorney General's Chambers of Malaysia. 25 April 2016. Archived from the original (PDF) on 12 June 2017. Retrieved 2016-04-28. "Senarai Calon yang Disahkan Layak Bertanding Pilihan Raya Dewan Undangan Negeri ke-11". Election Commission of Malaysia. 25 April 2016. Archived from the original on 25 April 2016. Retrieved 2016-04-28.

Sarawak state election, 2011: Batang Ai
Party		Candidate	Votes	%	∆%
	BN	Malcom Mussen Lamoh	4,460	72.18	6.63
	PKR	Nicholas Bawin Anggat	1,719	27.82	6.63
Total valid votes			6,179	100.00
Total rejected ballots			83
Unreturned ballots			19
Turnout			6,281	71.96	3.36
Registered electors			8,728
Majority			2,741	44.36	13.25
	BN hold		Swing
Source(s) "Federal Government Gazette - Results of Contested Election and Statements of the Poll after the Official Addition of Votes Sarawak [P.U. (B) 245/2011]" (PDF). Attorney General's Chambers of Malaysia. 29 April 2011. Retrieved 2016-04-27.

Sarawak state by-election, 7 April 2009: Batang Ai
Upon the death of incumbent, Dublin Unting Ingkot
Party		Candidate	Votes	%	∆%
	BN	Malcom Mussen Lamoh	3,907	65.55	8.58
	PKR	Jawah Gerang	2,053	34.45	34.45
Total valid votes			5,960	100.00
Total rejected ballots			59
Unreturned ballots			11
Turnout			6,030	75.32
Registered electors			8,006
Majority			1,854	31.11
	BN hold		Swing
Source(s) "Pilihan Raya Kecil N.29 Batang Air". Election Commission of Malaysia. Retrieved 2018-09-19.

Sarawak state election, 2006: Batang Ai
Party		Candidate	Votes	%	∆%
	BN	Dublin Unting Ingkot	3,295	56.97	56.97
	SNAP	Nicholas Bawin Anggat	2,489	43.03	43.03
Total valid votes			5,784	100.00
Total rejected ballots			70
Unreturned ballots			10
Turnout			5,864	73.32
Registered electors			7,997
Majority			806	13.94
	BN hold		Swing

Sarawak state election, 2001: Batang Ai
Party		Candidate	Votes	%
On the nomination day, Dublin Unting Ingkot won uncontested.
	BN	Dublin Unting Ingkot
Total valid votes				100.00
Total rejected ballots
Unreturned ballots
Turnout
Registered electors			7,817
Majority
	BN hold		Swing

Sarawak state election, 1996: Batang Ai
Party		Candidate	Votes	%	∆%
	BN	Dublin Unting Ingkot	3,882	74.52	25.34
	Independent	Klinsing Manau	1,327	25.48	25.48
Total valid votes			5,209	100.00
Total rejected ballots			100
Unreturned ballots			4
Turnout			5,313	74.99
Registered electors			7,084
Majority			2,555	49.05	47.40
	BN gain from PBDS		Swing		?

Sarawak state election, 1991: Batang Ai
Party		Candidate	Votes	%	∆%
	PBDS	Dublin Unting Ingkot	2,558	50.82	6.93
	BN	Mikai Mandau	2,475	49.18	6.93
Total valid votes			5,033	100.00
Total rejected ballots			85
Unreturned ballots			5
Turnout			5,123	77.20
Registered electors			6,636
Majority			83	1.65	13.85
	PBDS hold		Swing

Sarawak state election, 1987: Batang Ai
Party		Candidate	Votes	%	∆%
	PBDS	Mikai Mandau	2,761	57.75	20.77
	SNAP	Nicholas Bawin Anggat	2,020	42.25	5.27
Total valid votes			4,781	100.00
Total rejected ballots			29
Unreturned ballots			0
Turnout			4,810	77.82
Registered electors			6,181
Majority			741	15.50	15.29
	PBDS gain from SNAP		Swing		?

Sarawak state by-election, 29–30 August 1986: Batang Ai
Upon the death of incumbent, Sylvester Langit
Party		Candidate	Votes	%	∆%
	Independent	Mikai Mandau	2,342	52.04	52.04
	BN	Albert Klingsing Manau	1,939	43.09	43.09
	Independent	Dakau Sutik	84	1.87	1.87
	Independent	Pok Ungkut	59	1.31	1.31
	Independent	Ronaldson Ranggau Basan	46	1.02	1.02
	Independent	Lim Ah San	30	0.67
Total valid votes			4,500	100.00
Total rejected ballots			26
Unreturned ballots			0
Turnout			4,526	74.91	2.46
Registered electors			6,042
Majority			403	8.96	8.75
	Independent gain from BN		Swing		?

Sarawak state election, 1983: Batang Ai
Party		Candidate	Votes	%	∆%
	SNAP	Sylvester Langit Uming	1,421	36.98	36.98
	PBDS	David Jemut	1,413	36.77	36.77
	Independent	Benedict Bujang Tembak	1,009	26.26	26.26
Total valid votes			3,843	100.00
Total rejected ballots			80
Unreturned ballots			0
Turnout			3,923	72.45
Registered electors			5,415
Majority			8	0.21
	SNAP gain from Independent		Swing		?

Sarawak state election, 1979: Batang Ai
Party		Candidate	Votes	%
On the nomination day, David Jemut won uncontested.
	BN	David Jemut
Total valid votes				100.00
Total rejected ballots
Unreturned ballots
Turnout
Registered electors			4,957
Majority
This was a new constituency created.

References

"Keputusan Pilihan Raya Suruhanjaya Pilihan Raya". Election Commission of Malaysia. Archived from the original on 2016-04-24. Retrieved 2016-04-28.

↑ Malaysia, Department of Statistics. "N.34 Batang Ai Kawasanku | OpenDOSM". open.dosm.gov.my. Retrieved 2025-11-18.
↑ "Federal Government Gazette, Notice Under Subregulation 11(5A), Polling Hours for the Fifteenth General Election" (PDF). Attorney General's Chambers. 31 October 2022.
↑ "HISTORICAL-ELECTION-RESULTS/1979-SARAWAK-STATE-ELECTIONS/SARAWAK_1977_DUN_REDELINEATION_IMPACT.csv at main · TindakMalaysia/HISTORICAL-ELECTION-RESULTS". GitHub. Retrieved 2025-10-29.
↑ "HISTORICAL-ELECTION-RESULTS/2016-SARAWAK-STATE-ELECTIONS/SARAWAK_2015_DUN_REDELINEATION_IMPACT.csv at main · TindakMalaysia/HISTORICAL-ELECTION-RESULTS". GitHub. Retrieved 2025-10-29.

[1] Malaysia, Department of Statistics. "N.34 Batang Ai Kawasanku | OpenDOSM". open.dosm.gov.my. Retrieved 2025-11-18.

[2] "Federal Government Gazette, Notice Under Subregulation 11(5A), Polling Hours for the Fifteenth General Election" (PDF). Attorney General's Chambers. 31 October 2022.

[3] "HISTORICAL-ELECTION-RESULTS/1979-SARAWAK-STATE-ELECTIONS/SARAWAK_1977_DUN_REDELINEATION_IMPACT.csv at main · TindakMalaysia/HISTORICAL-ELECTION-RESULTS". GitHub. Retrieved 2025-10-29.

[4] "HISTORICAL-ELECTION-RESULTS/2016-SARAWAK-STATE-ELECTIONS/SARAWAK_2015_DUN_REDELINEATION_IMPACT.csv at main · TindakMalaysia/HISTORICAL-ELECTION-RESULTS". GitHub. Retrieved 2025-10-29.

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