Joosung

주성코퍼레이션 · 109070

Information Technology Hardware & Devices · KOSPI

Small-cap

Market cap US$63.5M (₩87.7B)

Overview

Joosung makes signal repeaters and related hardware that boost mobile network coverage, along with fiber-optic solutions for next-generation network infrastructure.

It supplies these products to major telecom carriers in South Korea and Japan, including LGU+, KT, NTT DOCOMO, and DKK. Listed on KOSPI, Korea's main stock exchange, the company has recently expanded beyond telecom equipment into freight-forwarding logistics, arranging the collection, shipping, and delivery of cargo on behalf of customers.

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

Financials

Source: DART · FY ending Dec · latest FY2025

Revenue · FY2025

US$61.9M

▲ +24.1% YoY

Operating profit · FY2025

US$2.3M

▼ −15.9% YoY

Net income · FY2025

US$1.5M

▼ −55.7% YoY

Revenue, operating profit and net income by fiscal year (USD; KRW in parentheses).
Metric	FY2023	FY2024	FY2025
Revenue	US$17.4M(₩23.9B)	US$49.9M(₩68.8B)	US$61.9M(₩85.4B)
Operating profit	−US$967.7K(−₩1.3B)	US$2.7M(₩3.8B)	US$2.3M(₩3.2B)
Net income	−US$997.7K(−₩1.4B)	US$3.3M(₩4.6B)	US$1.5M(₩2B)

Revenue

FY2023US$17.4M
FY2024US$49.9M
FY2025US$61.9M

Operating profit

FY2023−US$967.7K
FY2024US$2.7M
FY2025US$2.3M

Net income

FY2023−US$997.7K
FY2024US$3.3M
FY2025US$1.5M

Key ratios (FY2025)

ROE

7.0%

Debt/Eq

45.1%

Op. margin

3.7%

Net margin

2.4%

Rev. YoY

▲ +24.1%

Why it matters

Joosung's controlling shareholder is Joosung Group, a Korean conglomerate that was already operating in the freight-forwarding business before transferring that know-how to the listed company.

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