Doosan Tesna

두산테스나 · 131970

Industrials Commercial Services · KOSDAQ

Small-cap

Market cap US$741.7M (₩1T)

Overview

Doosan Tesna tests system semiconductors, checking chips at two stages of production to verify they work correctly before shipment.

It serves chipmakers and fabless designers (companies that design chips but outsource manufacturing) by providing wafer-level and post-packaging test services, as well as a die-preparation service that sorts and rearranges good chips from finished wafers. Listed on KOSDAQ, Korea's tech-focused stock exchange, the company focuses almost entirely on system semiconductors across product lines including system-on-chip, image sensors, microcontrollers, and smartcard chips.

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

Financials

Source: DART · FY ending Dec · latest FY2025
Revenue · FY2025
US$220.2M
▼ −18.6% YoY
Operating profit · FY2025
−US$681.8K
Turned to loss
Net income · FY2025
US$1.1M
▼ −95.9% YoY

Revenue

  • FY2023US$245.4M
  • FY2024US$270.4M
  • FY2025US$220.2M

Operating profit

  • FY2023US$44M
  • FY2024US$27.5M
  • FY2025−US$681.8K

Net income

  • FY2023US$35.6M
  • FY2024US$26.7M
  • FY2025US$1.1M

Key ratios (FY2025)

ROE
0.3%
Debt/Eq
61.0%
Op. margin
-0.3%
Net margin
0.5%
Rev. YoY
▼ −18.6%

Why it matters

The company operates multiple test and die-preparation facilities across several Korean cities, including sites in Pyeongtaek, Anseong, and Cheongju.

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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 2026-06-26 (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.