Sejong Telecom

세종텔레콤 · 036630

Industrials Construction & Engineering · KOSDAQ

Small-cap

Market cap US$91.3M (₩126B)

Overview

Sejong Telecom builds and installs electrical, telecommunications, fire-safety, and civil infrastructure for public and private clients across South Korea and in select overseas markets.

Its customers include public-sector bodies, residential developers, and industrial facility operators. Listed on KOSDAQ, South Korea's tech and small-cap exchange, the company has reorganised around a core of electrical construction and ICT services, spinning off its fixed-line telecoms operations into a separate subsidiary and divesting its commerce business to sharpen focus on those core areas.

Summary is AI-generated and may contain errors · figures from DART filings

Financials

Source: DART · FY ending Dec · latest FY2025
Revenue · FY2025
US$205.9M
▼ −23.5% YoY
Operating profit · FY2025
−US$7.8M
Loss narrowed
Net income · FY2025
US$5.8M
Turned profitable

Revenue

  • FY2023US$245.9M
  • FY2024US$269.1M
  • FY2025US$205.9M

Operating profit

  • FY2023−US$2.3M
  • FY2024−US$8.8M
  • FY2025−US$7.8M

Net income

  • FY2023US$32.1M
  • FY2024−US$24.1M
  • FY2025US$5.8M

Key ratios (FY2025)

ROE
4.6%
Debt/Eq
105.8%
Op. margin
-3.8%
Net margin
2.8%
Rev. YoY
▼ −23.5%

Why it matters

The company has carved out its fixed-line national telecoms operations into a separately incorporated subsidiary, 세종네트웍스(주), and its AI and digital-transformation business into 세종디엑스(주), each as independent legal entities.

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For informational purposes only. This is not investment advice, a recommendation, or a solicitation to buy or sell any security. Do your own research; any investment decision is your own responsibility.

Data from DART, Korea's official corporate-filing system. Data sourced from official DART filings. Accuracy is not guaranteed. Figures are as of the date shown. As of 2026-06-12 (KST). · FX: 1 USD ≈ ₩1,380 (2026-06-01).

Company summaries are generated and may contain errors; financial figures are mapped directly from official filings.