SEC
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
SEC, listed on KOSDAQ (Korea's tech and small-cap exchange), makes inspection equipment that uses X-rays and electron beams to detect defects inside products without damaging them, a technique known as non-destructive testing.
Its systems serve semiconductor and battery manufacturers, defense contractors inspecting large structures such as rocket propellants and warheads, and research laboratories in materials science, biotech, and chemistry. The majority of its revenue comes from X-ray inspection systems for the semiconductor and battery industries.
Summary is AI-generated and may contain errors · figures from DART filings
SEC states it is the only company in Korea that both develops and produces its own X-ray tube, the core component inside its inspection systems, a capability it pioneered domestically.
SEC in five facts
What does SEC do?
SEC, listed on KOSDAQ (Korea's tech and small-cap exchange), makes inspection equipment that uses X-rays and electron beams to detect defects inside products without damaging them, a technique known as non-destructive testing.
Where is SEC listed and in which sector?
SEC (Korean name: 쎄크) trades under KRX code 081180 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Industrials sector, Machinery.
How large is SEC?
Its market capitalisation was US$38.5M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were SEC's latest annual revenue and operating profit?
For fiscal year 2025, SEC reported revenue of US$44.7M, an operating loss of US$2.3M and a net loss of US$2.9M, per its annual report on DART (data retrieved from DART on 2026-10-02).
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-10-02
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Supply contract signed
SEC disclosed a supply contract with Hanwha Aerospace, worth US$5.43M, about 12.5% of its recent annual revenue, running through Sep 2029.
Supply contract · Sep 15 - Supply contract signed (voluntary)
SEC disclosed a supply contract with Hanwha Aerospace, worth US$2.77M, about 7.14% of its recent annual revenue, running through Dec 2027.
Supply contract · Jun 9 - Supply contract signed
SEC disclosed a supply contract with Hanwha Aerospace, worth US$6.24M, about 15.71% of its recent annual revenue, running through Sep 2028.
Supply contract · May 13 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
SEC reported separate results for FY2025: revenue of US$40.5M (+9.8% year on year), an operating loss of US$2.1M (from a profit a year earlier) and a net loss of US$2.59M (from a profit a year earlier).
Earnings · Mar 5