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Gunkul Engineering Public Company Limited (GUNKUL.BK) is a manufacturing and production company in the public works building services industry, based in Bangkok, Thailand.
It reported revenue of 7.80 billion THB for fiscal year 2025, down 14.0% from fiscal year 2024, and net income of 1.77 billion THB. In Q1 2026 (the quarter ended March 31, 2026) revenue was 2.44 billion THB, up 23.4% from a year before. Its largest business segment, Construction Service, brought in 41% of segment revenue in fiscal year 2025; Thailand was the largest region with 85%. Its market capitalization was 44.41 billion THB as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Gunkul Engineering Public Company Limited, together with its subsidiaries, generates and sells renewable energy in Thailand, Japan, and Vietnam. The company operates in four segments: Manufacturing and Selling of Equipment for Electrical Systems; Generating and Selling Electricity; Construction Service; and Maintenance Service, Rental Service and Others.
Gunkul Engineering Public reported 7.80 billion THB in revenue for fiscal year 2025, down 14.0% from 9.06 billion THB in fiscal year 2024. In Q1 2026 revenue was 2.44 billion THB.
Construction Service, with 3.82 billion THB or 41% of segment revenue in fiscal year 2025. Next: Generating and Selling Electricity (34%) and Manufacturing and Selling of Equipments for Electrical Systems (21%).
Thailand: 85% of revenue by region in fiscal year 2025, followed by Japan (8%).
44.41 billion THB as of October 9, 2026.
Listed companies of a similar size in the same industry (public works building services) include CH. Karnchang Public Company Limited (CK-R.BK), Christiani & Nielsen (Thai) Public Company Limited (CNT.BK), Unique Engineering and Construction Public Company Limited (UNIQ.BK), Syntec Construction Public Company Limited (SYNTEC.BK).