Dong-Ah Geological Engineering

028100 · KOSPI · ₩028100 · 동아지질

₩18,750▼ ₩100 (0.53%)End-of-day · Oct 28, 2026 · End-of-day prices.
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Price · 1Y +23.36%
Market cap
₩210B
Enterprise value
₩91B
P/E
9.9×
P/B
0.9×
Dividend yield
0.0%
ROE
9.6%
Net margin
4.3%

Trailing 12 months from filed financial statements, as of H1 2026. Dividend yield: the 2025 dividend per share from the annual report ÷ today's price.

52-week range−9.6% from the high

₩13,200Today: ₩18,340 – ₩18,850₩20,750

Returns

  • 1W−1.8%
  • 1M−4.3%
  • 3M+14.1%
  • 6M+3.0%
  • YTD+8.7%
  • 1Y+23.4%
Volume today
20,160
1.0× the 20-day average
Traded today
₩375M
Listed shares
11,222,117
EPS (12 months)
₩1,900
Earnings yield 10.1%
AI researchResearch being writtenOur AI is writing a report on this company from filed data, prices and news. Check back soon.

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Signals

42Quiet
  • BuzzQuietBuzz 42 of 100 (50 is a normal day for this stock).
  • SentimentMixedNews: Routine administrative filing with no clear positive or negative news. Community: 0 bullish, 0 bearish posts this week.
  • MomentumFlat-4.8% over the last month; the price is below its 20-day average.
  • News impactLow3 news items and filings in two weeks; 0 rated high impact, 0 medium.

Signals describe activity, not recommendations. Not financial advice.

Dong-Ah Geological Engineering stock overview

Dong-Ah Geological Engineering (동아지질, KRX: 028100) is listed on KOSPI, in the Construction sector. The company, a Korean civil engineering and construction firm, provides ground-related construction services, including boring and grouting, underwater works, water and sewer facility construction, earthworks, and reinforced concrete work. Its shares closed at ₩18,750 on Oct 28, 2026, down 0.53% on the day, giving it a market value of ₩210B.

Key facts

Market cap
₩210B
Sector
Construction
Latest price change
−0.53%
As of
Oct 28, 2026
Main business
The company, a Korean civil engineering and construction firm, provides ground-related construction services, including boring and grouting, underwater works, water and sewer facility construction, earthworks, and reinforced concrete work.

Quick answers about Dong-Ah Geological Engineering

What does Dong-Ah Geological Engineering do?
The company, a Korean civil engineering and construction firm, provides ground-related construction services, including boring and grouting, underwater works, water and sewer facility construction, earthworks, and reinforced concrete work. It offers a total service combining geotechnical investigation, testing, monitoring, design, and construction, and its main segments include general construction, diaphragm wall and foundation work, mechanical tunneling (TBM), ground improvement (DCM), and engineering. Its main customers include Singapore LTA, Korea Electric Power Corporation, Hyundai E&C, and Korea Expressway Corporation, and it generates most of its revenue from overseas projects, with significant work in Singapore and the Philippines.
What is the market cap of Dong-Ah Geological Engineering?
The market capitalisation of Dong-Ah Geological Engineering was ₩210B at the close on Oct 28, 2026.
Who are the largest shareholders of Dong-Ah Geological Engineering?
According to the latest official filings, the largest reported holders are Lee Jeong-woo (52.92%, as of Aug 14, 2025); National Pension Service (0.61%, as of Dec 31, 2025); EMERGING MARKETS CORE EQUITY 2 PORTFOLIO (0.05%, as of Jul 31, 2026).
When is the next earnings report from Dong-Ah Geological Engineering?
Korean companies rarely announce results dates in advance. Based on when Dong-Ah Geological Engineering filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
Does the National Pension Service own Dong-Ah Geological Engineering?
Yes. The National Pension Service held 0.61% of Dong-Ah Geological Engineering shares as of Dec 31, 2025.

Company profile

The company, a Korean civil engineering and construction firm, provides ground-related construction services, including boring and grouting, underwater works, water and sewer facility construction, earthworks, and reinforced concrete work. It offers a total service combining geotechnical investigation, testing, monitoring, design, and construction, and its main segments include general construction, diaphragm wall and foundation work, mechanical tunneling (TBM), ground improvement (DCM), and engineering. Its main customers include Singapore LTA, Korea Electric Power Corporation, Hyundai E&C, and Korea Expressway Corporation, and it generates most of its revenue from overseas projects, with significant work in Singapore and the Philippines.

Written by AI from the company's latest annual report.

Korean name
동아지질
CEO
최정욱, 정경수
Founded
Nov 1973
Listed
Jun 2009
Listed shares
11,222,117
Fiscal year ends
Month 12

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Titles in Korean until English translations are added.

Also known as: Dong-Ah Geological Engineering / 동아지질 / 028100 / KRX:028100

Source: KRX statistical information