Seokyeong AT
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
Seokyeong AT is a South Korean materials company listed on KOSDAQ, Korea's technology and small-cap stock exchange.
It operates within the semiconductor supply chain, supplying materials used in semiconductor manufacturing processes. Companies in this subsector typically provide specialty chemicals, abrasives, or other process materials to chipmakers and their upstream suppliers, though the specific products Seokyeong AT supplies are not detailed in available disclosures.
Summary is AI-generated and may contain errors · figures from DART filings
KOSDAQ-listed companies in Korea's semiconductor materials space often serve as upstream suppliers to larger domestic chipmakers, meaning their business activity can be closely tied to the production cycles of Korea's broader semiconductor industry.
Seokyeong AT in five facts
What does Seokyeong AT do?
Seokyeong AT is a South Korean materials company listed on KOSDAQ, Korea's technology and small-cap stock exchange.
Where is Seokyeong AT listed and in which sector?
Seokyeong AT (Korean name: 석경에이티) trades under KRX code 357550 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Materials sector, Chemicals.
How large is Seokyeong AT?
Its market capitalisation was US$287.9M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Seokyeong AT's latest annual revenue and operating profit?
For fiscal year 2025, Seokyeong AT reported revenue of US$13.2M, operating profit of US$2.9M and net income of US$2.9M, per its annual report on DART (data retrieved from DART on 2026-06-04). Revenue was up 27.0% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-04
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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.
- Treasury share acquisition via trust: status reportOct 1
- Change of 30% or more in revenue or profit/loss structure (15% for large companies)
Seokyeong AT reported consolidated results for FY2025: revenue of US$12.1M (+27% year on year), operating profit of US$2.69M (+92.67% year on year) and net income of US$2.62M (−12.56% year on year).
Earnings · Feb 12