Seoul Electronics & Telecom

서울전자통신 · 027040

Industrials Electrical Equipment · KOSDAQ

Small-cap

Market cap US$20.8M (₩28.7B)

Overview

Seoul Electronics & Telecom makes power-supply units, devices that convert electrical current to the right voltage for consumer and industrial equipment, as well as ODM products (goods manufactured to another company's design) such as kiosks and electric-vehicle charging equipment.

It supplies these products to electronics and appliance brands across Korea, Vietnam, Malaysia, and Hong Kong. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, the company operates two distinct divisions: a power-supply business and an ODM business, each serving separate customer bases.

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

Financials

Source: DART · FY ending Dec · latest FY2025

Revenue · FY2025

US$24.4M

▼ −5.8% YoY

Operating profit · FY2025

−US$1.2M

Loss narrowed

Net income · FY2025

−US$3.9M

Loss widened

Revenue, operating profit and net income by fiscal year (USD; KRW in parentheses).
Metric	FY2023	FY2024	FY2025
Revenue	US$25.1M(₩34.6B)	US$26M(₩35.8B)	US$24.4M(₩33.7B)
Operating profit	−US$2.7M(−₩3.8B)	−US$1.6M(−₩2.2B)	−US$1.2M(−₩1.6B)
Net income	−US$10.5M(−₩14.5B)	−US$2M(−₩2.7B)	−US$3.9M(−₩5.3B)

Revenue

FY2023US$25.1M
FY2024US$26M
FY2025US$24.4M

Operating profit

FY2023−US$2.7M
FY2024−US$1.6M
FY2025−US$1.2M

Net income

FY2023−US$10.5M
FY2024−US$2M
FY2025−US$3.9M

Key ratios (FY2025)

ROE

-61.0%

Debt/Eq

351.1%

Op. margin

-4.8%

Net margin

-15.8%

Rev. YoY

▼ −5.8%

Why it matters

The company runs overseas manufacturing subsidiaries in Vietnam, Malaysia, and Hong Kong, giving it a multi-country production and sourcing footprint beyond its Korean home base.

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